Scholars@Duke
A. Jonathan Shaw

A. Jonathan Shaw

Professor of Biology
Biology
shaw@duke.edu
Box 90338, Durham, NC 27708-0338
Box 90338, 137 Bio Sciences, 130 Science Drive, Durham, NC 27708

Selected Publications

Newly identified sex chromosomes in the Sphagnum (peat moss) genome alter carbon sequestration and ecosystem dynamics.

Journal Article Nature plants · February 2023 Peatlands are crucial sinks for atmospheric carbon but are critically threatened due to warming climates. Sphagnum (peat moss) species are keystone members of peatland communities where they actively engineer hyperacidic conditions, which improves their co ... Full text Cite

Habitat-adapted microbial communities mediate Sphagnum peatmoss resilience to warming.

Journal Article The New phytologist · June 2022 Sphagnum peatmosses are fundamental members of peatland ecosystems, where they contribute to the uptake and long-term storage of atmospheric carbon. Warming threatens Sphagnum mosses and is known to alter the composition of their associated microbiome. Her ... Full text Cite

Novel metabolic interactions and environmental conditions mediate the boreal peatmoss-cyanobacteria mutualism.

Journal Article The ISME journal · April 2022 Interactions between Sphagnum (peat moss) and cyanobacteria play critical roles in terrestrial carbon and nitrogen cycling processes. Knowledge of the metabolites exchanged, the physiological processes involved, and the environmental conditions allowing th ... Full text Cite

Heterogeneous genetic structure in eastern North American peat mosses (Sphagnum)

Journal Article Biological Journal of the Linnean Society · April 1, 2022 Bryophytes generally have broad geographical ranges that suggest high dispersal ability. The aim of this study was to test hypotheses about dispersal limitation, as indicated by isolation by distance, in four spore-producing species of the moss genus Sphag ... Full text Cite

Natural selection on a carbon cycling trait drives ecosystem engineering by Sphagnum (peat moss).

Journal Article Proceedings. Biological sciences · August 2021 Sphagnum peat mosses have an extraordinary impact on the global carbon cycle as they control long-term carbon sequestration in boreal peatland ecosystems. Sphagnum species engineer peatlands, which harbour roughly a quarter of all terrestrial ... Full text Cite

Extensive Genome-Wide Phylogenetic Discordance Is Due to Incomplete Lineage Sorting and Not Ongoing Introgression in a Rapidly Radiated Bryophyte Genus.

Journal Article Molecular biology and evolution · June 2021 The relative importance of introgression for diversification has long been a highly disputed topic in speciation research and remains an open question despite the great attention it has received over the past decade. Gene flow leaves traces in the genome s ... Full text Cite

Phylogenomics reveals convergent evolution of red-violet coloration in land plants and the origins of the anthocyanin biosynthetic pathway.

Journal Article Molecular phylogenetics and evolution · October 2020 The flavonoids, one of the largest classes of plant secondary metabolites, are found in lineages that span the land plant phylogeny and play important roles in stress responses and as pigments. Perhaps the most well-studied flavonoids are the anthocyanins ... Full text Open Access Cite

Phylogenetic structure in the Sphagnum recurvum complex (Bryophyta) in relation to taxonomy and geography.

Journal Article American journal of botany · September 2020 PremiseThe Sphagnum recurvum complex comprises a group of closely related peat mosses that are dominant components of many northern wetland ecosystems. Taxonomic hypotheses for the group range from interpreting the whole complex as one polymorphic ... Full text Cite

Organellomic data sets confirm a cryptic consensus on (unrooted) land-plant relationships and provide new insights into bryophyte molecular evolution.

Journal Article American journal of botany · January 2020 PremisePhylogenetic trees of bryophytes provide important evolutionary context for land plants. However, published inferences of overall embryophyte relationships vary considerably. We performed phylogenomic analyses of bryophytes and relatives us ... Full text Cite

One thousand plant transcriptomes and the phylogenomics of green plants.

Journal Article Nature · October 2019 Green plants (Viridiplantae) include around 450,000-500,000 species1,2 of great diversity and have important roles in terrestrial and aquatic ecosystems. Here, as part of the One Thousand Plant Transcriptomes Initiative, we sequenced the vegetat ... Full text Open Access Cite

Functional trait evolution in Sphagnum peat mosses and its relationship to niche construction.

Journal Article The New phytologist · July 2019 Species in the genus Sphagnum create, maintain, and dominate boreal peatlands through 'extended phenotypes' that allow these organisms to engineer peatland ecosystems and thereby impact global biogeochemical cycles. One such phenotype is the production of ... Full text Cite

Exploring the natural microbiome of the model liverwort: fungal endophyte diversity in Marchantia polymorpha L

Journal Article Symbiosis · May 15, 2019 Within their tissues, plants host diverse communities of fungi, termed fungal endophytes. These fungi can affect plant growth, competitiveness, and resistance to stressors, thereby influencing plant community structure. Research characterizing fungal endop ... Full text Cite

Resolution of the ordinal phylogeny of mosses using targeted exons from organellar and nuclear genomes.

Journal Article Nature communications · April 2019 Mosses are a highly diverse lineage of land plants, whose diversification, spanning at least 400 million years, remains phylogenetically ambiguous due to the lack of fossils, massive early extinctions, late radiations, limited morphological variation, and ... Full text Cite

Sphagnum ×lydiae, the first allotriploid peatmoss in the northern hemisphere

Journal Article Bryologist · March 1, 2019 In plants, hybridization between interspecific taxa leading to chromosome doubling seems to happen regularly and may be an important driver of speciation. Allopolyploid species often have morphological traits from both parents, broader ecological niches, a ... Full text Cite

Range change evolution of peat mosses (Sphagnum) within and between climate zones.

Journal Article Global change biology · January 2019 Peat mosses (Sphagnum) hold exceptional importance in the control of global carbon fluxes and climate because of the vast stores of carbon bound up in partially decomposed biomass (peat). This study tests the hypothesis that the early diversification of Sp ... Full text Cite

Phylogenomic delineation of Physcomitrium (Bryophyta: Funariaceae) based on targeted sequencing of nuclear exons and their flanking regions rejects the retention of Physcomitrella, Physcomitridium and Aphanorrhegma

Journal Article Journal of Systematics and Evolution · January 1, 2019 Selection on spore dispersal mechanisms in mosses is thought to shape the transformation of the sporophyte. The majority of extant mosses develop a sporangium that dehisces through the loss of an operculum, and regulates spore release through the movement ... Full text Cite

Evolutionary origin of the latitudinal diversity gradient in liverworts.

Journal Article Molecular phylogenetics and evolution · October 2018 A latitudinal diversity gradient towards the tropics appears as one most recurrent patterns in ecology, but the mechanisms underlying this pattern remain an area of controversy. In angiosperms, the tropical conservatism hypothesis proposes that most groups ... Full text Cite

A novel experimental system using the liverwort Marchantia polymorpha and its fungal endophytes reveals diverse and context-dependent effects.

Journal Article The New phytologist · May 2018 Fungal symbioses are ubiquitous in plants, but their effects have mostly been studied in seed plants. This study aimed to assess the diversity of fungal endophyte effects in a bryophyte and identify factors contributing to the variability of outcomes in th ... Full text Cite

Sphagnum incundum a new species in Sphagnum subg. Acutifolia (Sphagnaceae) from boreal and arctic regions of North America

Journal Article Phytotaxa · January 5, 2018 We describe Sphagnum incundum in Sphagnum subgenus Acutifolia (Sphagnaceae, Bryophyta). We used both molecular and morphological methods to describe the new species. Molecular relationships with closely related species were explored based on micros ... Full text Cite

The Sphagnome Project: enabling ecological and evolutionary insights through a genus-level sequencing project.

Journal Article The New phytologist · January 2018 Considerable progress has been made in ecological and evolutionary genetics with studies demonstrating how genes underlying plant and microbial traits can influence adaptation and even 'extend' to influence community structure and ecosystem level processes ... Full text Cite

Divergent evolution and niche differentiation within the common peatmoss Sphagnum magellanicum.

Journal Article American journal of botany · July 2017 Premise of the studyPopulations with phenotypic polymorphism in discrete characters may be good models for investigating genome evolution and speciation. Sphagnum magellanicum Brid. is found throughout the northern hemisphere, and despite consider ... Full text Cite

Species delimitation and biogeography of a southern hemisphere liverwort clade, Frullania subgenus Microfrullania (Frullaniaceae, Marchantiophyta).

Journal Article Molecular phylogenetics and evolution · February 2017 Frullania subgenus Microfrullania is a clade of ca. 15 liverwort species occurring in Australasia, Malesia, and southern South America. We used combined nuclear and chloroplast sequence data from 265 ingroup accessions to test species circumscriptions and ... Full text Cite

Range size heritability and diversification patterns in the liverwort genus Radula.

Journal Article Molecular phylogenetics and evolution · January 2017 Why some species exhibit larger geographical ranges than others, and to what extent does variation in range size affect diversification rates, remains a fundamental, but largely unanswered question in ecology and evolution. Here, we implement phylogenetic ... Full text Cite

Significance of the intraspecific morphological variability in biomonitoring studies with mosses: Among-populations and between-sexes approach

Journal Article Environmental and Experimental Botany · October 1, 2016 In this study we assessed for the first time the intraspecific morphological variation in gametophytes of the terrestrial moss Pseudoscleropodium purum in populations growing naturally in areas affected by different levels of atmospheric pollution (2 indus ... Full text Cite

Organellar phylogenomics of an emerging model system: Sphagnum (peatmoss).

Journal Article Annals of botany · August 2016 Background and aimsSphagnum-dominated peatlands contain approx. 30 % of the terrestrial carbon pool in the form of partially decomposed plant material (peat), and, as a consequence, Sphagnum is currently a focus of studies on biogeochemistry and c ... Full text Cite

Analyses of transcriptome sequences reveal multiple ancient large-scale duplication events in the ancestor of Sphagnopsida (Bryophyta).

Journal Article The New phytologist · July 2016 The goal of this research was to investigate whether there has been a whole-genome duplication (WGD) in the ancestry of Sphagnum (peatmoss) or the class Sphagnopsida, and to determine if the timing of any such duplication(s) and patterns of paralog retenti ... Full text Cite

The Sphagnum microbiome: new insights from an ancient plant lineage.

Journal Article The New phytologist · July 2016 57 I. 57 II. 58 III. 59 IV. 59 V. 61 VI. 62 63 References 63 SUMMARY: Peat mosses of the genus Sphagnum play a major role in global carbon storage and dominate many northern peatland ecosystems, which are currently being subjected to some of the most rapid ... Full text Cite

HybPiper: Extracting coding sequence and introns for phylogenetics from high-throughput sequencing reads using target enrichment.

Journal Article Applications in plant sciences · July 2016 Premise of the studyUsing sequence data generated via target enrichment for phylogenetics requires reassembly of high-throughput sequence reads into loci, presenting a number of bioinformatics challenges. We developed HybPiper as a user-friendly p ... Full text Cite

The effects of quantitative fecundity in the haploid stage on reproductive success and diploid fitness in the aquatic peat moss Sphagnum macrophyllum.

Journal Article Heredity · June 2016 A major question in evolutionary biology is how mating patterns affect the fitness of offspring. However, in animals and seed plants it is virtually impossible to investigate the effects of specific gamete genotypes. In bryophytes, haploid gametophytes gro ... Full text Cite

Long-distance dispersal and barriers shape genetic structure of peatmosses (Sphagnum) across the Northern Hemisphere

Journal Article Journal of Biogeography · June 1, 2016 Aim: Disjunctly distributed peatmosses (Sphagnum) have been found to exhibit little genetic structure over regional and intercontinental scales, mainly caused by high ability for transoceanic long-distance dispersal. Although, most Northern Hemisphere peat ... Full text Cite

A phylotranscriptomic analysis of gene family expansion and evolution in the largest order of pleurocarpous mosses (Hypnales, Bryophyta).

Journal Article Molecular phylogenetics and evolution · May 2016 The pleurocarpous mosses (i.e., Hypnanae) are a species-rich group of land plants comprising about 6,000 species that share the development of female sex organs on short lateral branches, a derived trait within mosses. Many of the families within Hypnales, ... Full text Cite

Increased diversification rates follow shifts to bisexuality in liverworts.

Journal Article The New phytologist · May 2016 Shifts in sexual systems are one of the key drivers of species diversification. In contrast to angiosperms, unisexuality prevails in bryophytes. Here, we test the hypotheses that bisexuality evolved from an ancestral unisexual condition and is a key innova ... Full text Cite

Endemism in the moss flora of North America.

Journal Article American journal of botany · April 2016 Premise of the studyIdentifying regions of high endemism is a critical step toward understanding the mechanisms underlying diversification and establishing conservation priorities. Here, we identified regions of high moss endemism across North Ame ... Full text Cite

Spatial Genetic Structure of the Abundant and Widespread Peatmoss Sphagnum magellanicum Brid.

Journal Article PloS one · January 2016 Spore-producing organisms have small dispersal units enabling them to become widespread across continents. However, barriers to gene flow and cryptic speciation may exist. The common, haploid peatmoss Sphagnum magellanicum occurs in both the Northern and S ... Full text Cite

The Sphagnum Genome Project. A New Model for Ecological and Evolutionary Genomics.

Chapter · January 1, 2016 The inception of the Sphagnum (peat moss) genome project marks the first plant-based sequencing project aimed specifically at carbon cycling genomics in a plant system relevant to ecological and evolutionary genomics. Sphagnum provides considerable intra- ... Full text Cite

The dark morph of Sphagnum fuscum (Schimp.) H. Klinggr. In Europe is conspecific with the North American S. beothuk

Journal Article Journal of Bryology · December 1, 2015 Peat mosses (Sphagnum) are known to be difficult to identify, especially in the field, because of extensive morphological variation that can blur distinctions among closely related species. The extent to which phenotypic variation reflects genetic differen ... Full text Cite

Phylogenetic structure and biogeography of the Pacific Rim clade of Sphagnum subgen. Subsecunda: haploid and allodiploid taxa

Journal Article Biological journal of the Linnean Society. · October 2015 Although it is an uncommon distribution in seed plants, many bryophytes occur around the Pacific Rim of north‐western North America and eastern Asia. This work focuses on a clade of peatmosses (Sphagnum) that is distributed around the Pacific Rim region, w ... Full text Cite

Phylogeny and classification of Lejeuneaceae subtribe Cheilolejeuneinae (Marchantiophyta) based on nuclear and plastid molecular markers

Journal Article Cryptogamie, Bryologie · October 1, 2015 Cheilolejeuneinae is an early diverging lineage of Lejeuneaceae tribe Lejeuneeae with a pantropical distribution. The current phylogeny and classification of this subtribe is based on morphological and limited-sampling molecular studies. Here we present a ... Full text Cite

Sphagnum physiology in the context of changing climate: emergent influences of genomics, modelling and host-microbiome interactions on understanding ecosystem function.

Journal Article Plant, cell & environment · September 2015 Peatlands harbour more than one-third of terrestrial carbon leading to the argument that the bryophytes, as major components of peatland ecosystems, store more organic carbon in soils than any other collective plant taxa. Plants of the genus Sphagnum are i ... Full text Cite

Approximate Bayesian Computation Reveals the Crucial Role of Oceanic Islands for the Assembly of Continental Biodiversity.

Journal Article Systematic biology · July 2015 The perceived low levels of genetic diversity, poor interspecific competitive and defensive ability, and loss of dispersal capacities of insular lineages have driven the view that oceanic islands are evolutionary dead ends. Focusing on the Atlantic bryophy ... Full text Cite

Genetic diversity, sexual condition, and microhabitat preference determine mating patterns in Sphagnum (Sphagnaceae) peat-mosses

Journal Article Biological Journal of the Linnean Society · May 1, 2015 In bryophytes, the possibility of intragametophytic selfing creates complex mating patterns that are not possible in seed plants, although relatively little is known about patterns of inbreeding in natural populations. In the peat-moss genus Sphagnum, taxa ... Full text Cite

Phylogenetic Relationships and Morphological Evolution in a Major Clade of Leafy Liverworts (Phylum Marchantiophyta, Order Jungermanniales): Suborder Jungermanniineae

Journal Article Systematic botany. · February 2015 —The suborder Jungermanniineae of the Jungermanniales is a major lineage of leafy liverworts, recognized in recent classifications to include 15 families. Gametophytes within the suborder are morphologically diverse, but commonly anisophyllous to distichou ... Full text Cite

Pleistocene survival, regional genetic structure and interspecific gene flow among three northern peat‐mosses: Sphagnum inexspectatum, S. orientale and S. miyabeanum

Journal Article Journal of biogeography · February 2015 AIM: Arctic plant species are often characterized by a complex genetic structure because of changes in their population size, the fragmentation of metapopulation systems, extensive hybridization and allopolyploidization, and survival in disjunct refugia, h ... Full text Cite

Evolution of niche preference in Sphagnum peat mosses.

Journal Article Evolution; international journal of organic evolution · January 2015 Peat mosses (Sphagnum) are ecosystem engineers-species in boreal peatlands simultaneously create and inhabit narrow habitat preferences along two microhabitat gradients: an ionic gradient and a hydrological hummock-hollow gradient. In this article, we demo ... Full text Cite

Local adaptations in bryophytes revisited: The genetic structure of the calcium-tolerant peatmoss Sphagnum warnstorfii along geographic and pH gradients

Journal Article Ecology and Evolution · January 1, 2015 Bryophytes dominate some ecosystems despite their extraordinary sensitivity to habitat quality. Nevertheless, some species behave differently across various regions. The existence of local adaptations is questioned by a high dispersal ability, which is tho ... Full text Cite

Phylotranscriptomic analysis of the origin and early diversification of land plants.

Journal Article Proceedings of the National Academy of Sciences of the United States of America · November 2014 Reconstructing the origin and evolution of land plants and their algal relatives is a fundamental problem in plant phylogenetics, and is essential for understanding how critical adaptations arose, including the embryo, vascular tissue, seeds, and flowers. ... Full text Cite

Extant diversity of bryophytes emerged from successive post-Mesozoic diversification bursts.

Journal Article Nature communications · October 2014 Unraveling the macroevolutionary history of bryophytes, which arose soon after the origin of land plants but exhibit substantially lower species richness than the more recently derived angiosperms, has been challenged by the scarce fossil record. Here we d ... Full text Cite

Population structure in the tropical peatmoss, Sphagnum tumidulum Besch. (Sphagnaceae)

Journal Article Bryologist · October 1, 2014 Sphagnum and Sphagnum-dominated peatlands have long provided a model for analyses of community structure, and recent work has elucidated the genetic structure of various Sphagnum species in the boreal zone. We report here analyses of genetic variation and ... Full text Cite

On the taxonomic status of the enigmatic Phycolepidoziaceae (Marchantiophyta: Jungermanniales) with description of a new species, Phycolepidozia indica

Journal Article Taxon · June 30, 2014 The monospecific Phycolepidoziaceae with the single neotropical species Phycolepidozia exigua is a highly specialized leafy liverwort without vegetative leaves. The extreme reduction of morphological and anatomical characters of Phycolepidozia has caused u ... Full text Cite

Efficient purging of deleterious mutations in plants with haploid selfing.

Journal Article Genome biology and evolution · May 2014 In diploid organisms, selfing reduces the efficiency of selection in removing deleterious mutations from a population. This need not be the case for all organisms. Some plants, for example, undergo an extreme form of selfing known as intragametophytic self ... Full text Cite

Intercontinental genetic structure in the amphi-Pacific peatmoss Sphagnum miyabeanum (Bryophyta: Sphagnaceae)

Journal Article Biological Journal of the Linnean Society · January 1, 2014 Unlike seed plants where global biogeographical patterns typically involve interspecific phylogenetic history, spore-producing bryophyte species often have intercontinental distributions that are best understood from a population genetic perspective. We so ... Full text Cite

Horizontal transfer of an adaptive chimeric photoreceptor from bryophytes to ferns

Journal Article Proceedings of the National Academy of Sciences · 2014 Open Access Cite

Invisible in plain sight: Recurrent double allopolyploidy in the African Sphagnum ×planifolium (Sphagnaceae)

Journal Article Bryologist · January 1, 2014 Microsatellites, nucleotide sequences, and flow cytometry were used to determine if two sympatricAfrican peat mosses (Sphagnum ×planifolium and S. ×slooveri) had a history of inter-subgeneric hybridization and to assess their phylogenetic relationship. Bot ... Full text Cite

High morphological diversity in remote island populations of the peat moss Sphagnum palustre: Glacial refugium, adaptive radiation or just plasticity?

Journal Article Bryologist · January 1, 2014 Many islands are characterized by high biological diversity, and both adaptive and non-adaptive factors have been found to contribute to island richness. Here we study extensive color morph variability in the allopolyploid peat moss Sphagnum palustre on th ... Full text Cite

Data access for the 1,000 Plants (1KP) project.

Journal Article GigaScience · January 2014 The 1,000 plants (1KP) project is an international multi-disciplinary consortium that has generated transcriptome data from over 1,000 plant species, with exemplars for all of the major lineages across the Viridiplantae (green plants) clade. Here, we descr ... Full text Cite

A molecular phylogeny of the moss genus Taxithelium (Pylaisiadelphaceae) based on plastid, mitochondrial and nuclear markers

Journal Article Systematic Botany · December 1, 2013 To test infrageneric classification and species delimitation within the pantropical moss genus Taxithelium (Pylaisiadelphaceae), we constructed a molecular phylogeny using three chloroplast loci (trnL, psbT and rps4), three mitochondrial loci (rps3, nad5 a ... Full text Cite

The double allopolyploid Sphagnum × falcatulum (Sphagnaceae) in Tierra del Fuego, a Holantarctic perspective

Journal Article Journal of Bryology · September 1, 2013 A Holantarctic species, the inter-subgeneric allopolyploid Sphagnum ×falcatulum s.l. is a cryptic species complex composed of allodiploid and allotriploid cytotypes. The allotriploid plants are double allopolyploids (one of just two reported for bryophytes ... Full text Cite

Selection is no more efficient in haploid than in diploid life stages of an angiosperm and a moss.

Journal Article Molecular biology and evolution · August 2013 The masking hypothesis predicts that selection is more efficient in haploids than in diploids, because dominant alleles can mask the deleterious effects of recessive alleles in diploids. However, gene expression breadth and noise can potentially counteract ... Full text Cite

Origins, genetic structure, and systematics of the narrow endemic peatmosses (Sphagnum): S. guwassanense and S. triseriporum (Sphagnaceae).

Journal Article American journal of botany · June 2013 UnlabelledPremise of the studySphagnum dominates vast expanses of wetland habitats throughout the northern hemisphere and species delimitation within the genus is important because floristic changes associated with a warming global climat ... Full text Cite

Long-distance dispersal and genetic structure of natural populations: an assessment of the inverse isolation hypothesis in peat mosses.

Journal Article Molecular ecology · November 2012 It is well accepted that the shape of the dispersal kernel, especially its tail, has a substantial effect on the genetic structure of species. Theory predicts that dispersal by fat-tailed kernels reshuffles genetic material, and thus, preserves genetic div ... Full text Cite

Molecular evolution and diversification of the moss family Daltoniaceae (Hookeriales, Bryophyta) with emphasis on the unravelling of the phylogeny of Distichophyllum and its allies

Journal Article Botanical Journal of the Linnean Society · October 1, 2012 Phylogenetic relationships in Daltoniaceae (∼200 species in 14 genera) are inferred from nucleotide sequences from five genes, representing all genomic compartments, using parsimony, likelihood and Bayesian methods. Alternative classifications for Daltonia ... Full text Cite

Genetic analysis of the peatmoss Sphagnum cribrosum (Sphagnaceae) indicates independent origins of an extreme infra-specific morphology shift

Journal Article Biological Journal of the Linnean Society · May 1, 2012 Within Sphagnum cribrosum, a dioicous aquatic peatmoss, a unique morphological variant (the 'waveform'), found at only two lakes in North Carolina, has a branching architecture that is extremely differentiated from anything otherwise known in Sphagnum, alt ... Full text Cite

Phylogenetic analyses of morphological evolution in the gametophyte and sporophyte generations of the moss order Hookeriales (Bryopsida).

Journal Article Molecular phylogenetics and evolution · May 2012 Morphological characters from the gametophyte and sporophyte generations have been used in land plants to infer relationships and construct classifications, but sporophytes provide the vast majority of data for the systematics of vascular plants. In bryoph ... Full text Cite

Climacium (Climaciaceae): Species relationships and biogeographic implications

Journal Article Bryologist · March 1, 2012 Climacium is a small but morphologically distinctive genus ("tree mosses") with four species distributed primarily in the Northern Hemisphere. Climacium dendroides occurs around the globe at northern latitudes with disjunct populations in Mexico and New Ze ... Full text Cite

A phylogenetic monograph of the Sphagnum subsecundum complex (Sphagnaceae) in eastern North America

Journal Article Bryologist · March 1, 2012 A taxonomic treatment based on field studies, examination of herbarium collections, and previously published molecular data is provided for the North American species of the Sphagnum subsecundum complex. Sphagnum platyphyllum, S. contortum, S. lescurii, an ... Full text Cite

A phylogeny of the northern temperate leafy liverwort genus Scapania (Scapaniaceae, Jungermanniales).

Journal Article Molecular phylogenetics and evolution · March 2012 Scapania is a northern temperate genus with a few disjunctions in the south. Despite receiving considerable attention, the supraspecific classification of this genus remains unsatisfactorily solved. We use three molecular markers (nrITS, cpDNA trnL-F regio ... Full text Cite

High genetic diversity in a remote island population system: sans sex.

Journal Article The New phytologist · March 2012 It has been proposed that long-distance dispersal of mosses to the Hawaiian Islands rarely occurs and that the Hawaiian population of the allopolyploid peat moss Sphagnum palustre probably resulted from a single dispersal event. Here, we used microsatellit ... Full text Cite

New national and regional bryophyte records, 32

Journal Article Journal of Bryology · January 1, 2012 Full text Cite

Disentangling knots of rapid evolution: Origin and diversification of the moss order Hypnales

Journal Article Journal of Bryology · January 1, 2012 The Hypnales are the largest order of mosses comprising approximately 4200 species. Phylogenetic reconstruction within the group has proven to be difficult due to rapid radiation at an early stage of evolution and, consequently, relationships among clades ... Full text Cite

Systematics of the Sphagnum fimbriatum complex: Phylogenetic relationships, morphological variation, and allopolyploidy

Journal Article Systematic Botany · January 1, 2012 The application of genetic tools for studying species delimitation and relationships in Sphagnum (peatmosses) has demonstrated that evolutionary patterns are complex and include homoploid hybridization and multiple taxa of allopolyploid origin. We investig ... Full text Cite

Oceanic islands are not sinks of biodiversity in spore-producing plants.

Journal Article Proceedings of the National Academy of Sciences of the United States of America · November 2011 Islands have traditionally been considered as migratory and evolutionary dead ends for two main reasons: island colonizers are typically assumed to lose their dispersal power, and continental back colonization has been regarded as unlikely because of niche ... Full text Cite

Evolution of sexual systems, dispersal strategies and habitat selection in the liverwort genus Radula.

Journal Article The New phytologist · October 2011 • Shifts in sexual systems are among the most common and important transitions in plants and are correlated with a suite of life-history traits. The evolution of sexual systems and their relationships to gametophyte size, sexual and asexual reproduction, a ... Full text Cite

Interploidal hybridization and mating patterns in the Sphagnum subsecundum complex.

Journal Article Molecular ecology · August 2011 Polyploidization is thought to result in instant sympatric speciation, but several cases of hybrid zones between one of the parental species and its polyploid derivative have been documented. Previous work showed that diploid Sphagnum lescurii is an allopo ... Full text Cite

Formalizing morphologically cryptic biological entities: new insights from DNA taxonomy, hybridization, and biogeography in the leafy liverwort Porella platyphylla (Jungermanniopsida, Porellales).

Journal Article American journal of botany · August 2011 Premise of the studyRecognition and formalization of morphologically cryptic species is a major challenge to modern taxonomy. An extreme example in this regard is the Holarctic Porella platyphylla s.l. (P. platyphylla plus P. platyphylloidea). Ear ... Full text Cite

Phylogeographic patterns in two Southern Hemisphere species of calyptrochaeta (Daltoniaceae, Bryophyta)

Journal Article Systematic Botany · July 1, 2011 To better understand biogeographic patterns in the Southern Hemisphere, infraspecific molecular patterns were compared in two species of the moss genus Calyptrochaeta with contrasting distributions. One, C. apiculata, has a disjunct distribution encompassi ... Full text Cite

A multi-locus molecular phylogeny of the Lepidoziaceae: laying the foundations for a stable classification.

Journal Article Molecular phylogenetics and evolution · May 2011 The Lepidoziaceae, with over 700 species in 30 genera, is one of the largest leafy liverwort families. Despite receiving considerable attention, the composition of subfamilies and genera remains unsatisfactorily resolved. In this study, 10 loci (one nuclea ... Full text Cite

Macaronesia: A source of hidden genetic diversity for post-glacial recolonization of western Europe in the leafy liverwort Radula lindenbergiana

Journal Article Journal of Biogeography · April 1, 2011 Aim Bryophytes exhibit apparently low rates of endemism in Macaronesia and differ from angiosperms in their diversity patterns by the widespread occurrence of endemics within and among archipelagos. This paper investigates the phylogeography of the leafy l ... Full text Cite

North American origin and recent European establishments of the amphi-Atlantic peat moss Sphagnum angermanicum.

Journal Article Evolution; international journal of organic evolution · April 2011 Genetic and morphological similarity between populations separated by large distances may be caused by frequent long-distance dispersal or retained ancestral polymorphism. The frequent lack of differentiation between disjunct conspecific moss populations o ... Full text Cite

Bryophyte diversity and evolution: windows into the early evolution of land plants.

Journal Article American journal of botany · March 2011 The "bryophytes" comprise three phyla of plants united by a similar haploid-dominant life cycle and unbranched sporophytes bearing one sporangium: the liverworts (Marchantiophyta), mosses (Bryophyta), and hornworts (Anthocerophyta). Combined, these groups ... Full text Cite

The narrow endemic Norwegian peat moss Sphagnum troendelagicum originated before the last glacial maximum.

Journal Article Heredity · February 2011 It is commonly found that individual hybrid, polyploid species originate recurrently and that many polyploid species originated relatively recently. It has been previously hypothesized that the extremely rare allopolyploid peat moss Sphagnum troendelagicum ... Full text Cite

One haploid parent contributes 100% of the gene pool for a widespread species in northwest North America.

Journal Article Molecular ecology · February 2011 The monoicous peatmoss Sphagnum subnitens has a tripartite distribution that includes disjunct population systems in Europe (including the Azores), northwestern North America and New Zealand. Regional genetic diversity was highest in European S. subnitens ... Full text Cite

Generation-biased gene expression in a bryophyte model system.

Journal Article Molecular biology and evolution · January 2011 The evolution of land plants is tightly linked to the evolution of the alternation of generations. Because alternating ploidal generations share their genomes, investigating generation-biased gene expression can give insight into the evolution of life cycl ... Full text Cite

Molecular data challenge traditional subgeneric divisions in the leafy liverwort radula

Journal Article Taxon · January 1, 2011 With approximately 200 species, the genus Radula is one of the most speciose genera of leafy liverworts. Although the genus is well delimited, its subdivision into subgenera and sections has been controversial. None of the subgeneric subdivisions have been ... Full text Cite

The peat moss sphagnum cuspidatum in Australia: Microsatellites provide a global perspective

Journal Article Systematic Botany · January 1, 2011 The distribution of Sphagnum cuspidatum has been subject to controversy. Although historically reported from all continents except Antarctica recent authors consider S. cuspidatum to be endemic to Europe and eastern North America. Microsatellites from Aust ... Full text Cite

Phylogeny of the leafy liverwort Ptilidium: cryptic speciation and shared haplotypes between the Northern and Southern Hemispheres.

Journal Article Molecular phylogenetics and evolution · December 2010 The small, phylogenetically isolated liverwort genus Ptilidium has been regarded as of cool-Gondwanic origin with the bipolar, terrestrial Ptilidium ciliare giving rise to the Northern Hemisphere epiphytes Ptilidium pulcherrimum and Ptilidium californicum. ... Full text Cite

Narrow species concepts in the Frullania dilatata-appalachiana-eboracensis complex (Porellales, Jungermanniopsida): evidence from nuclear and chloroplast DNA markers

Journal Article Plant Syst Evol. · December 2010 We investigated the phylogeny of a Holarctic-Asian group of Frullania species, the Frullania dilatata-F. appalachiana-F. eboracensis complex, using multiple accessions of morphologically circumscribed taxa and three molecular markers (nrITS region, cp DNA ... Full text Cite

Morphologically cryptic biological species within the liverwort Frullania asagrayana.

Journal Article American journal of botany · October 2010 UnlabelledPremise of the studyThe Frullania tamarisci complex includes eight Holarctic liverwort species. One of these, F. asagrayana, is distributed broadly throughout eastern North America from Canada to the Gulf Coast. Preliminary gene ... Full text Open Access Cite

Moss diversity: A molecular phylogenetic analysis of genera

Journal Article PHYTOTAXA · September 30, 2010 Link to item Cite

One species or at least eight? Delimitation and distribution of Frullania tamarisci (L.) Dumort. s. l. (Jungermanniopsida, Porellales) inferred from nuclear and chloroplast DNA markers.

Journal Article Molecular phylogenetics and evolution · September 2010 Frullania tamarisci is usually regarded as a polymorphic, holarctic-Asian liverwort species with four allopatric subspecies [subsp. asagrayana, moniliata, nisquallensis and tamarisci]. This hypothesis is examined using a dataset including sequences of the ... Full text Cite

Newly resolved relationships in an early land plant lineage: Bryophyta class Sphagnopsida (peat mosses).

Journal Article American journal of botany · September 2010 UnlabelledPremise of the studyThe Sphagnopsida, an early-diverging lineage of mosses (phylum Bryophyta), are morphologically and ecologically unique and have profound impacts on global climate. The Sphagnopsida are currently classified in ... Full text Open Access Cite

Peatmoss (Sphagnum) diversification associated with Miocene Northern Hemisphere climatic cooling?

Journal Article Molecular phylogenetics and evolution · June 2010 Global climate changes sometimes spark biological radiations that can feed back to effect significant ecological impacts. Northern Hemisphere peatlands dominated by living and dead peatmosses (Sphagnum) harbor almost 30% of the global soil carbon pool and ... Full text Cite

A phylogeny of Adelanthaceae (Jungermanniales, Marchantiophyta) based on nuclear and chloroplast DNA markers, with comments on classification, cryptic speciation and biogeography.

Journal Article Molecular phylogenetics and evolution · April 2010 Adelanthaceae (including Jamesoniellaceae) represent a major lineage of jungermannialean liverworts that is characterized by ventral-intercalary, often flagelliform branches, succubous leaves, ovoid to cylindrical, plicate perianths with a contracted mouth ... Full text Cite

Allopolyploidy in Sphagnum mendocinum and S. papillosum (Sphagnaceae)

Journal Article Bryologist · March 1, 2010 This study provides the first report that Sphagnum mendocinum (Sphagnum section Cuspidata) and S. papillosum (Sphagnum section Sphagnum) are allopolyploids. Sphagnum mendocinum is an intersectional allopolyploid, with parental species from Sphagnum section ... Full text Cite

Microsatellite analysis of Sphagnum centrale, S. henryense, and S. palustre (Sphagnaceae)

Journal Article Bryologist · March 1, 2010 This study provides the first report that Sphagnum centrale and S. henryense are allopolyploids. Microsatellites show S. henryense and S. palustre to be conspecific. In contrast, they show S. centrale to be genetically distinct from S. palustre s.l. In add ... Full text Cite

Macroecological patterns of genetic structure and diversity in the aquatic moss Platyhypnidium riparioides.

Journal Article The New phytologist · February 2010 Genetic diversity and structure are described in the aquatic moss Platyhypnidium riparioides to assess its dispersal ability at a regional scale and to determine whether patterns of genetic differentiation correlate with environmental variation. Variation ... Full text Cite

Radula splendida sp. nov. (Radulaceae: Marchantiophyta), a polymorphic species from New Zealand

Journal Article Nova Hedwigia · February 1, 2010 We describe Radula splendida, a new species endemic to New Zealand. Radula splendida is most similar to Radula physoloba in size, colour, and habitat, but differs in producing microphyllous and amentulose branches, reflexed lobule exterior margin, lobules ... Full text Cite

Allopolyploidy and homoploid hybridization in the Sphagnum subsecundum complex (Sphagnaceae: Bryophyta)

Journal Article Biological Journal of the Linnean Society · January 1, 2010 Several complexes of species in Sphagnum (peat mosses) originated through hybridization and allopolyploidy, suggesting that these processes have played a major evolutionary role in this genus. The Sphagnum subsecundum complex includes gametophytically hapl ... Full text Cite

Intercontinentally disjunct species are derived rather than relictual in the moss genus Daltonia (Bryophyta)

Journal Article Taxon · January 1, 2010 We present a phylogenetic analysis of the moss genus Daltonia based on nucleotide sequences from three plastid loci (psbT, trnL, trnG) plus the nuclear ribosomal RNA gene (ITS), including 9 of 21 species in this genus. Of the nine species, seven are well-s ... Full text Cite

Phylogeographic analyses reveal distinct lineages of the liverworts Metzgeria furcata (L.) Dumort. and Metzgeria conjugata Lindb. (Metzgeriaceae) in Europe and North America

Journal Article Biological journal of the Linnean Society. · December 2009 Seed plant genera often exhibit intercontinental disjunctions where different species are found on different continents. Many morphologically circumscribed bryophyte species exhibit similar disjunctions. We used nucleotide sequences from the plastid and nu ... Full text Cite

Multiple paternity and sporophytic inbreeding depression in a dioicous moss species.

Journal Article Heredity · November 2009 Multiple paternity (polyandry) frequently occurs in flowering plants and animals and is assumed to have an important function in the evolution of reproductive traits. Polyandry in bryophytes may occur among multiple sporophytes of a female gametophyte; how ... Full text Cite

Spatial pattern of nucleotide polymorphism indicates molecular adaptation in the bryophyte Sphagnum fimbriatum.

Journal Article Molecular phylogenetics and evolution · October 2009 In organisms with haploid-dominant life cycles, natural selection is expected to be especially effective because genetic variation is exposed directly to selection. However, in spore-producing plants with high dispersal abilities, among-population migratio ... Full text Cite

Sphagnum recurvum P.Beauv. On Terceira, Azores, new to Macaronesia-Europe

Journal Article Journal of Bryology · September 1, 2009 Full text Cite

Mielichhoferia shevockii, comb. Nov. (mielichhoferiaceae)

Journal Article Bryologist · September 1, 2009 The California endemic species described as Schiymenium shevockii A. J. Shaw is transferred to the genus Mielichhoferia because phylogenetic analyses have shown that peristome structure (exostomial versus endostomial) is not a reliable character for distin ... Full text Cite

Molecular insights into the phylogeny and subgeneric classification of Frullania Raddi (Frullaniaceae, Porellales).

Journal Article Molecular phylogenetics and evolution · July 2009 With an estimated 300-375 species, Frullania is the largest genus of Porellales and forms a major clade of leafy liverworts. The cosmopolitan genus includes mostly epiphytes and represents an important component of the cryptogamic vegetation in various, es ... Full text Cite

Three-genome mosses: complex double allopolyploid origins for triploid gametophytes in Sphagnum.

Journal Article Molecular ecology · April 2009 This paper documents the occurrence of allotriploidy (having three differentiated genomes) in gametophytes of two Southern Hemisphere Sphagnum species (S. australe, S. falcatulum). The pattern of microsatellite alleles indicates that both species are compo ... Full text Cite

Pohlia flexuosa (Mielichhoferiaceae) in North America

Journal Article Bryologist · March 1, 2009 Pohlia flexuosa is reported from a single California site as new for the North American moss flora. This species is otherwise found in central and eastern Asia, where it is one of the most common gemmiferous Pohlia species, and in western Europe. A key is ... Full text Cite

A Genetic Analysis of Two Recently Described Peat Moss Species, Sphagnum atlanticum and S. bergianum (Sphagnaceae).

Journal Article Systematic botany. · January 2009 Microsatellite markers were used to test whether two recently described species of Sphagnum (Bryophyta), S. atlanticum R.E. Andrus and S. bergianum R.E. Andrus, represent distinct gene pools. The first species is considered endemic to eastern North America ... Full text Cite

Recent divergence, intercontinental dispersal and shared polymorphism are shaping the genetic structure of amphi-Atlantic peatmoss populations.

Journal Article Molecular ecology · December 2008 Several lines of evidence suggest that recent long-distance dispersal may have been important in the evolution of intercontinental distribution ranges of bryophytes. However, the absolute rate of intercontinental migration and its relative role in the deve ... Full text Cite

Cytotype variation and allopolyploidy in North American species of the Sphagnum subsecundum complex (Sphagnaceae).

Journal Article American journal of botany · December 2008 Allopolyploid speciation is likely the predominant mode of sympatric speciation in plants. The Sphagnum subsecundum complex includes six species in North America. Three have haploid gametophytes, and three are thought to have diploid gametophytes. Microsat ... Full text Cite

Genetic structure and genealogy in the Sphagnum subsecundum complex (Sphagnaceae: Bryophyta).

Journal Article Molecular phylogenetics and evolution · October 2008 Allopolyploidy is probably the most extensively studied mode of plant speciation and allopolyploid species appear to be common in the mosses (Bryophyta). The Sphagnum subsecundum complex includes species known to be gametophytically haploid or diploid, and ... Full text Cite

Identification and characterization of nuclear microsatellite loci in the aquatic moss Platyhypnidium riparioides (Brachytheciaceae).

Journal Article Molecular ecology resources · September 2008 Eight microsatellite loci from the aquatic moss Platyhypnidium riparioides were identified using the method of microsatellite-enriched libraries. Polymorphism was assessed in a sample of four populations of 20 individuals each from four streams of the Meus ... Full text Cite

Biogeographic and phylogenetic patterns in diversity of liverwort-associated endophytes.

Journal Article American journal of botany · August 2008 Liverworts harbor diverse fungi, including endophytes, in their healthy tissues. To address whether patterns of endophyte diversity are correlated with host phylogeny or geography, we designed a broad geographic survey with controlled phylogenetic host sam ... Full text Cite

The genetic basis of developmental abnormalities in interpopulation hybrids of the moss Ceratodon purpureus.

Journal Article Genetics · July 2008 Divergent populations are intrinsically reproductively isolated when hybrids between them either fail to develop properly or do not produce viable offspring. Intrinsic isolation may result from Dobzhansky-Muller (DM) incompatibilities, in which deleterious ... Full text Cite

Sphagnum Beringiense sp. nov. (bryophyta) from Arctic Alaska, Based on Morphological and Molecular Data.

Journal Article Systematic botany. · July 2008 A new species of Sphagnum section Subsecunda, S. beringiense , is described from arctic Alaska from the vicinity of Barrow along the northern coast. The species is distinguished morphologically by the light, yellow-green color of the gametophytes, multistr ... Full text Cite

A phylogenetic delimitation of the "Sphagnum subsecundum complex" (Sphagnaceae, Bryophyta).

Journal Article American journal of botany · June 2008 A seemingly obvious but sometimes overlooked premise of any evolutionary analysis is delineating the group of taxa under study. This is especially problematic in some bryophyte groups because of morphological simplicity and convergence. This research appli ... Full text Cite

The barriers to oceanic island radiation in bryophytes: Insights from the phylogeography of the moss Grimmia montana

Journal Article Journal of Biogeography · April 1, 2008 Aim: In contrast to angiosperms, bryophytes do not appear to have radiated in Macaronesia and the western Mediterranean. We evaluate if: (1) the apparent lack of radiation in bryophytes reflects our failure to recognize cryptic endemic species; (2) bryophy ... Full text Cite

Phylogeny, character evolution, and biogeography of the gondwanic moss family Hypopterygiaceae (Bryophyta)

Journal Article Systematic Botany · March 1, 2008 Phylogenetic relationships among the seven genera of the Hypopterygiaceae, represented by 14 of the 21 species recognized in the family, were reconstructed based on variation in nucleotide sequences of six nuclear, mitochondrial, and plastid loci. Monophyl ... Full text Cite

Bryophyte biology, second edition

Book · January 1, 2008 Bryophyte Biology provides an extensive overview of the hornworts, liverworts, and mosses; diverse groups of land plants that occupy a great variety of habitats throughout the world. This new edition covers essential aspects of bryophyte biology, from morp ... Full text Cite

Morphology, anatomy, and classification of the bryophyta

Chapter · January 1, 2008 With approximately 13 000 species, the Bryophyta compose the second most diverse phylum of land plants. Mosses share with the Marchantiophyta and Anthocerotophyta a haplodiplobiontic life cycle that marks the shift from the haploid-dominated life cycle of ... Full text Cite

Bryophyte species and speciation

Chapter · January 1, 2008 Introduction The three lineages of bryophytes, mosses, liverworts, and hornworts, compose successful groups of early embryophytes. The mosses are estimated to include some 12 700 species (Crosby et al. 2000), the liverworts approximately 6000–8000 extant s ... Full text Cite

Systematics of sphagnum section sphagnum in New Zealand: A microsatellite-based analysis

Journal Article New Zealand Journal of Botany · January 1, 2008 The systematics of Sphagnum section Sphagnum in New Zealand has been controversial. Two species are currently recognised in the New Zealand flora, S. cristatum and S. perichaetiale, but the presence of the widespread S. magellanicum has been debated. An an ... Full text Cite

Resolving boundaries between species in Sphagnum section Subsecunda using microsatellite markers

Journal Article Taxon · January 1, 2008 Populations and species of Sphagnum section Subsecunda are morphologically variable and it is often difficult from studying field-collected plants and herbarium specimens to delimit species. Allelic patterns at 20 microsatellite loci indicate that three di ... Full text Cite

Cytotype variation and allopolyploidy in North American species of the

Journal Article American Journal of Botany · 2008 Cite

A linkage map reveals a complex basis for segregation distortion in an interpopulation cross in the moss Ceratodon purpureus.

Journal Article Genetics · August 2007 We report the construction of a linkage map for the moss Ceratodon purpureus (n = 13), based on a cross between geographically distant populations, and provide the first experimental confirmation of maternal chloroplast inheritance in bryophytes. From a ma ... Full text Cite

Systematics and population genetics of Sphagnum macrophyllum and S. cribrosum (Sphagnaceae)

Journal Article Systematic Botany · July 1, 2007 To clarify long-standing disagreements about the taxonomic and phylogenetic status of Sphagnum macrophyllum and S. cribrosum, twenty-five samples of S. macrophyllum and twenty-four of S. cribrosum, including the rare wave-form morphotype, were sampled from ... Full text Cite

Bryophyte phylogeny: Advancing the molecular and morphological frontiers

Journal Article Bryologist · June 1, 2007 Revolutionary new concepts of bryophyte relationships have emerged from molecular phylogenetic analyses conducted since the onset of the 21st century. For example, sequence data contradict the historical notion that isophylly in leafy liverworts is plesiom ... Full text Cite

A molecular phylogenetic approach to the evolution of bryophytes

Journal Article Bryologist · June 1, 2007 Bryophytes comprise the root from which the green plant Tree-of-Life developed. Molecular methods have been applied to a range of evolutionary problems in bryophytes including phylogenetic relationships among the major lineages, delimination of families an ... Full text Cite

Distribution and phylogenetic significance of the 71-kb inversion in the plastid genome in Funariidae (Bryophyta).

Journal Article Annals of botany · April 2007 Background and aimsThe recent assembly of the complete sequence of the plastid genome of the model taxon Physcomitrella patens (Funariaceae, Bryophyta) revealed that a 71-kb fragment, encompassing much of the large single copy region, is inverted. ... Full text Cite

Local-scale genetic structure in the peatmoss Sphagnum fuscum.

Journal Article Molecular ecology · January 2007 Sphagnum (peatmoss) dominates huge areas of the Northern Hemisphere and acts as a significant carbon sink on a global scale, yet little is known about the genetic structure of Sphagnum populations. We investigated genetic structure within a population of t ... Full text Cite

Experimental habitat fragmentation increases linkage disequilibrium but does not affect genetic diversity or population structure in the Amazonian liverwort Radula flaccida.

Journal Article Molecular ecology · August 2006 Habitat fragmentation increases the migration distances among remnant populations, and is predicted to play a significant role in altering both demographic and genetic processes. Nevertheless, few studies have evaluated the genetic consequences of habitat ... Full text Cite

A revision of the moss genus Pohlia Hedw. (Mniaceae) in Australia

Journal Article Systematic Botany · July 4, 2006 The moss genus Pohlia is most diverse in the Northern Hemisphere, but ten species occur in Australia, mostly in New South Wales and Tasmania. One species, P. clavaeformis, is endemic to Australia; P. tenuifolia is disjunct between Australia and South Ameri ... Full text Cite

Metapopulation extinction thresholds in rain forest remnants.

Journal Article The American naturalist · February 2006 Although habitat fragmentation is a major threat to global biodiversity, the demographic mechanisms underlying species loss from tropical forest remnants remain largely unexplored. In particular, no studies at the landscape scale have quantified fragmentat ... Full text Cite

Variation in "biodiversity value" of peatmoss species in Sphagnum section Acutifolia (Sphagnaceae).

Journal Article American journal of botany · November 2005 Species are the most common currency by which biodiversity is measured, but species are not equivalent in "biodiversity value" because of differences in phylogenetic history and current population processes. Morphologically defined species in Sphagnum sect ... Full text Cite

Phenotypic plasticity in Philonotis fontana (Bryopsida: Bartramiaceae)

Journal Article Journal of Bryology · April 26, 2005 Gametophytes from six populations of the moss Philonotis fontana (Hedw.) Brid. were grown under two light and two water regimes in order to assess the effects of these environmental factors on gametophytic architecture and leaf and leaf-cell dimensions. Bo ... Full text Cite

Molecular phylogenetic study of interspecific variation in the moss Isothecium (Brachytheciaceae)

Journal Article Systematic Botany · April 1, 2005 Isothecium myosuroides is an abundant and taxonomically problematic moss that occurs in Europe and on the west and east coasts of North America. It has sometimes been split into two taxa, I. myosuroides on the east coast of North America and in Europe, and ... Full text Cite

Selective sweeps and intercontinental migration in the cosmopolitan moss Ceratodon purpureus (Hedw.) Brid.

Journal Article Molecular ecology · April 2005 The moss Ceratodon purpureus has long been used as a model system in plant development and physiology. However, the molecular population genetics of the species remains virtually unexplored. In this study, we used population genetic analyses of DNA sequenc ... Full text Cite

Global patterns of moss diversity: Taxonomic and molecular inferences

Journal Article Taxon · January 1, 2005 Taxonomic and molecular data were utilized to test the hypothesis that moss diversity is greatest near the equator. Species richness estimates from 86 taxonomic checklists representing global moss diversity do not support the hypothesis that, in general, m ... Full text Cite

Phylogenetic significance of the rpoA loss in the chloroplast genome of mosses

Journal Article Taxon · January 1, 2005 A recent survey of arthrodontous mosses revealed that their chloroplast genome lacks the gene encoding the alpha subunit of the RNA polymerase (i.e., rpoA), and that at least in Physcomitrella patens the gene has been transferred to the nuclear genome. Sub ... Full text Cite

Pohlia robertsonii and P. rabunbaldensis (Bryopsida, Mniaceae), two new species from the western and eastern United States

Journal Article Bryologist · January 1, 2005 Pohlia robertsonii is newly described from central California. Plants with polysetous sporophytes immediately separate this species from all other members of the genus Pohlia in North America. Pohlia robertsonii is further characterized by firm, but not th ... Full text Cite

Divergent and reticulate evolution in closely related species of Sphagnum section Subsecunda

Journal Article Bryologist · January 1, 2005 The Sphagnum subsecundum complex includes a group of closely related, morphologically intergrading species in section Subsecunda. Nucleotide sequences from six genes (four nuclear and two chloroplast) were obtained from 74 populations representing all the ... Full text Cite

Phylogeny, species delimitation, and recombination in Sphagnum section Acutifolia

Journal Article Systematic Botany · January 1, 2005 Nucleotide sequences for six nuclear loci and one chloroplast region were used to reconstruct phylogenetic relationships in Sphagnum section Acutifolia. The combined data matrix, which includes 136 accessions (129 ingroup taxa and seven outgroups) and 5126 ... Full text Cite

Phylogeny and diversification of bryophytes

Journal Article American Journal of Botany · October 1, 2004 The bryophytes comprise three phyla of embryophytes that are well established to occupy the first nodes among extant lineages in the land-plant tree of life. The three bryophyte groups (hornworts, liverworts, mosses) may not form a monophyletic clade, but ... Full text Cite

Evolution of multiple paralogous adenosine kinase genes in the moss genus Hygroamblystegium: phylogenetic implications.

Journal Article Molecular phylogenetics and evolution · May 2004 Maximum likelihood analyses of DNA sequences from two chloroplast regions, trnL-trnF and atpB-rbcL, and the internal transcribed spacers of 18S-5.8S-26S rRNA gene array, were performed to resolve species relationships within the moss genus Hygroamblystegiu ... Full text Cite

Phylogenetic inferences in the dung-moss family Splachnaceae from analyses of cpDNA sequence data and implications for the evolution of entomophily.

Journal Article American journal of botany · May 2004 The moss family Splachnaceae is characterized by half of its members relying on insects for spore dispersal. These species grow on dung or other animal substrates. They produce small and aggregated spores, and their capsule is modified to attract coprophil ... Full text Cite

Phylogenetic relationships among the mosses based on heterogeneous Bayesian analysis of multiple genes from multiple genomic compartments

Journal Article Systematic Botany · April 1, 2004 Nucleotide sequences from eight nuclear, chloroplast, and mitochondrial genes were obtained from 30 mosses (plus four outgroup liverworts) in order to resolve phylogenetic relationships among the major clades of division Bryophyta. Phylogenetic analyses we ... Full text Cite

Phylogenetic relationships among Sphagnum sections: Hemitheca, Isocladus, and Subsecunda

Journal Article Bryologist · January 1, 2004 Sphagnum macrophyllum, S. pylaesii, and S. cyclophyllum are morphologically atypical in the genus Sphagnum and their systematic placement has been a source of controversy. The first is generally classified in the mono-specific section Isocladus, and the se ... Full text Cite

Pohlia bolanderi from Sierra Nevada, Spain, new to the European bryophyte flora

Journal Article Bryologist · January 1, 2004 Pohlia bolanderi (Lesq.) Broth. is reported for the first time for Europe from the south of Spain (Sierra Nevada range). A description from European material is provided and differences from closely related species, with which it has been confused, are dis ... Full text Cite

Diversification of peatmosses: A phylogenetic approach

Conference MOLECULAR SYSTEMATICS OF BRYOPHYTES · January 1, 2004 Link to item Cite

Polarity of peatmoss (Sphagnum) evolution: who says bryophytes have no roots?

Journal Article American journal of botany · December 2003 The class Sphagnopsida (Bryophyta) includes two genera: Ambuchanania and Sphagnum. Ambuchanania contains just one rare species known from two Tasmanian localities, but Sphagnum comprises a speciose clade of mosses that dominates many wetland ecosystems, es ... Full text Cite

Endophytic Xylaria (Xylariaceae) among liverworts and angiosperms: phylogenetics, distribution, and symbiosis.

Journal Article American journal of botany · November 2003 Nuclear ribosomal 18S and internal transcribed spacer (ITS) sequence data were used to identify endophytic fungi cultured from six species of liverworts collected in Jamaica and North Carolina. Comparisons with other published fungal sequences and phylogen ... Full text Cite

A taxonomic reassessment of the Vittiaceae (Hypnales, Bryopsida): Evidence from phylogenetic analyses of combined chloroplast and nuclear sequence data

Journal Article Plant Systematics and Evolution · October 1, 2003 The Vittiaceae are a small family of aquatic mosses that are defined based on gametophytic traits whose interpretation has led to conflicting taxonomic arrangements. Phylogenetic analyses of two cpDNA regions, trnL-trnF and atpB-rbcL, indicate that Vittia ... Full text Cite

Phylogenetic evidence of a rapid radiation of pleurocarpous mosses (Bryophyta).

Journal Article Evolution; international journal of organic evolution · October 2003 Pleurocarpous mosses, characterized by lateral female gametangia and highly branched, interwoven stems, comprise three orders and some 5000 species, or almost half of all moss diversity. Recent phylogenetic analyses resolve the Ptychomniales as sister to t ... Full text Cite

Global patterns in peatmoss biodiversity.

Journal Article Molecular ecology · October 2003 DNA sequence data from the nuclear ribosomal internal transcribed spacers (ITS) and the trnL-trnF chloroplast DNA regions were used to quantify geographical partitioning of global biodiversity in peatmosses (Sphagnum), and to compare patterns of molecular ... Full text Cite

Patterns of Molecular and Morphological Variation in Leucobryum albidum, L. glaucum, and L. juniperoideum (Bryopsida)

Journal Article Systematic Botany · October 1, 2003 Restriction digest patterns from 18S-26S nuclear ribosomal DNA internal transcribed spacers (ITS) were employed to investigate delineation between the morphologically similar moss species Leucobryum glaucum, L. juniperoideum, and L. albidum. Discriminant a ... Cite

Molecular data confirm the presence of Anacolia menziesii (Bartramiaceae, Musci) in Southern Europe and its separation from Anacolia webbii

Journal Article Systematic Botany · July 1, 2003 ISSR (Inter-Simple Sequence Repeat) fingerprint data and nrITS sequences confirm the presence of Anacolia menziesii in Europe. The species is more variable genetically in North America than in Europe. The data show only minor differentiation between the No ... Cite

Intercontinental Mediterranean disjunct mosses: morphological and molecular patterns.

Journal Article American journal of botany · April 2003 This study focused on three species that occur disjunctly between western North America and the Mediterranean region of southern Europe, northern Africa, and western Asia, forming the so-called Madrean-Tethyan distribution pattern. Quantitative morphologic ... Full text Cite

Phylogeographic structure and cryptic speciation in the trans-Antarctic moss Pyrrhobryum mnioides.

Journal Article Evolution; international journal of organic evolution · February 2003 Many bryophyte species have distributions that span multiple continents. The hypotheses historically advanced to explain such distributions rely on either long-distance spore dispersal or slow rates of morphological evolution following ancient continental ... Full text Cite

The circumscription of the Dicranaceae (Bryopsida) based on the chloroplast regions trnL - trnF and rps4

Journal Article Systematic Botany · July 1, 2002 The Dicranaceae have been classified as one of the largest, most heterogeneous families of the moss subclass Dicranidae. Circumscriptions of the family have varied, with some studies excluding selected subfamilies and recognizing them at the familial rank, ... Cite

Independent origins of cleistocarpy in the splachnaceae: Analyses of cpDNA sequences and polyphyly of the Voitioideae (Bryophyta)

Journal Article Systematic Botany · June 22, 2002 Many dung mosses (Splachnaceae) are characterized by insect-mediated spore dispersal. All of the entomophilous species are coprophilous, whereas anemophilous species are humicolous or epiphytic. The three species of the Voitioideae are coprophilous but are ... Cite

Phylogeny and morphological evolution of the amblystegiaceae (Bryopsida).

Journal Article Molecular phylogenetics and evolution · April 2002 To circumscribe the moss family Amblystegiaceae, we performed a broad-scale analysis of trnL-trnF spacer sequence data for 168 species of the Hypnales and 11 species of the Hookeriales and additional analyses of trnL-trnF and atpB-rbcL (chloroplast DNA), o ... Full text Cite

Circumscription, classification, and taxonomy of Amblystegiaceae (Bryopsida) inferred from nuclear and chloroplast DNA sequence data and morphology

Journal Article Taxon · January 1, 2002 Results from a previous broad-scale analysis employing trnL-trnF sequence data for 168 Hypnalean and 11 Hookerialean taxa, and an analysis employing two chloroplast regions, trnL-trnF and atpB-rbcL, one nuclear region, the internal transcribed spacers of 1 ... Full text Cite

A new species of Leskeodon (Daltoniaceae) from Ecuador

Journal Article Brittonia · January 1, 2002 Leskeodon caducifolius is described from recent collections made at a single site in a cloud forest in southern Ecuador. The species is distinctive in its small, caducous leaves and elongate, porose exothecial cells. ... Full text Cite

Invited essay: New frontiers in bryology and lichenology. Phylogeography and phylodemography

Journal Article Bryologist · January 1, 2002 Phylogenetic analyses of infraspecific molecular data in relation to geographic and ecological information has come to be known as phylogeography. Bryophytes offer fertile material for such analyses, which can help clarify long standing biogeographic quest ... Full text Cite

Antagonistic pleiotropy and the evolution of alternate generations.

Journal Article The New phytologist · December 2001 Full text Cite

Testing controversial alignments in Amblystegium and related genera (Amblystegiaceae: Bryopsida). Evidence from rDNA ITS sequences

Journal Article Systematic Botany · October 10, 2001 The Amblystegiaceae include pleurocarpous mosses typical of moist, wet, or aquatic habitats. Sporophytes are uniform, and genera are distinguished by the habit, arrangement, and anatomy of leaves, leaf cell shape, and costal structure. Generic limits are c ... Cite

The Bryophyta (Mosses): Systematic and Evolutionary Inferences from an rps4 Gene (cpDNA) Phylogeny.

Journal Article Annals of botany · February 2001 Phylogenetic analyses of nucleotide and amino acid sequences of the chloroplast protein coding gene rps4 were performed for 225 species of mosses, representing 84% of families recognized by Vitt (1984. In: Schuster RM, ed. New manual of bryology , vol 2 . ... Full text Cite

Biogeographic patterns and cryptic speciation in bryophytes

Conference Journal of Biogeography · January 1, 2001 Bryophytes (mosses, liverworts, hornworts) typically have broad geographical distributions that span two or more continents. Many species show classic patterns of disjunction that are similar to those found in many other groups of organisms (e.g. eastern A ... Full text Cite

Phylogenetic relationships, morphological incongruence, and geographic speciation in the fontinalaceae (Bryophyta).

Journal Article Molecular phylogenetics and evolution · August 2000 Nuclear ribosomal DNA (internal transcribed spacer region) and chloroplast DNA (trnL-trnF region) were sequenced from 40 samples representing all three genera (Brachelyma, Dichelyma, and Fontinalis) and 18 species of the aquatic moss family, Fontinalaceae. ... Full text Cite

Testing morphological concepts of orders of pleurocarpous mosses (Bryophyta) using phylogenetic reconstructions based on TRNL-TRNF and RPS4 sequences.

Journal Article Molecular phylogenetics and evolution · August 2000 The ordinal classification of pleurocarpous mosses rests on characters such as branching mode and architecture of the peristome teeth that line the mouth of the capsule. The Leucodontales comprise mainly epiphytic taxa, characterized by sympodial branching ... Full text Cite

Circadian rhythms in Neurospora: a new measurement, the reset zone.

Journal Article Journal of biological rhythms · June 2000 The authors define a new feature of a circadian rhythm, the reset zone, and point out its usefulness for predictions concerning oscillator behavior. The reset zone measures the responses of a circadian system to resetting pulses. It can be easily determine ... Full text Cite

Molecular phylogeography and cryptic speciation in the mosses, Mielichhoferia elongata and M. mielichhoferiana (Bryaceae).

Journal Article Molecular ecology · May 2000 Nucleotide sequence variation in the ITS1-5.8S-ITS2 region of nuclear ribosomal DNA (nrDNA) from 70 populations of Mielichhoferia elongata and M. mielichhoferiana, plus two outgroup species, was analysed using maximum parsimony and maximum likelihood metho ... Full text Cite

Novel relationships in pleurocarpous mosses as revealed by cpDNA sequences

Journal Article Bryologist · January 1, 2000 As a result of a project using two chloroplast loci, the trnL-trnF region and the rps4 gene, to test the monophyly of pleurocarpous mosses as a group and the traditional three orders contained in it, several novel generic alliances were revealed. Of partic ... Full text Cite

Phylogenetic relationships within the haplolepideous mosses

Journal Article Bryologist · January 1, 2000 Mosses with haplolepideous peristomes form a major lineage within the arthrodontous taxa, the Dicranidae. Relationships among lineages within the Dicranidae are explored using three cpDNA regions: rbcL, rps4, and the region spanning trnL(UAA)- trnF(GAA). M ... Full text Cite

Phylogenetic relationships among the diplolepideous-alternate mosses (Bryidae) inferred from nuclear and chloroplast DNA sequences

Journal Article Bryologist · January 1, 2000 The diplolepideous-alternate peristome, when most highly developed, has endostome segments attached to a basal membrane and positioned alternate to the outer exostome teeth, with cilia often present between the segments. This peristome type defines the Bry ... Full text Cite

Molecular evidence of reticulate evolution in the peatmosses (Sphagnum), including S. ehyalinum sp. nov.

Journal Article Bryologist · January 1, 2000 Phylogenetic analyses of nuclear and chloroplast DNA sequences resolve four major clades within the peatmosses, and these lineages correspond to sections that have traditionally been recognized based on morphology. The sectional placement of most species i ... Full text Cite

Ordinal phylogeny within the hypnobryalean pleurocarpous mosses inferred from cladistic analyses of three chloroplast DNA sequence data sets: trnL-F, rps4, and rbcL

Journal Article Bryologist · January 1, 2000 Classification of families of hypnobryalean mosses into the Hypnales, Leucodontales, and Hoolceriales has been taxonomically difficult. Several researchers have sequenced different genes for independent phylogenetic studies of these three pleurocarp groups ... Full text Cite

Schizymenium shevockii (Bryaceae), a new species of moss from California, based on morphological and molecular evidence

Journal Article Systematic Botany · January 1, 2000 A new moss species, Schizymenium shevockii, is described from Fresno County, California. Schizylnenium shevockii is distinguished from North American species of Mielichhoferia by a single endostomial peristome, and from Mexican species of Schizymenium by d ... Full text Cite

Paedomorphic sporophyte development in Bruchia flexuosa (Bruchiaceae)

Journal Article Bryologist · January 1, 2000 Cleistocarpous mosses, those lacking a differentiated operculum and having the capsule dehisce irregularly, are generally thought to have evolved via reduction from stegocarpous ancestors. Bruchia (Bruchiaceae), a cleistocarpous genus of approximately 15 s ... Full text Cite

Phylogeny of the sphagnopsida based on chloroplast and nuclear DNA sequences

Journal Article Bryologist · January 1, 2000 Most reconstructions of basal land plant relationships derived from morphological or molecular data suggest that the Sphagnopsida form a critical clade at or near the base of the mosses (Bryophyta s.s.). The Sphagnopsida include two orders: Sphagnales and ... Full text Cite

Peristome development in mosses in relation to systematics and evolution. V. Diplolepideae: Orthotrichaceae

Journal Article Bryologist · January 1, 1999 The classification of the Bryopsida is based to a large extent on the architecture of the peristome teeth. Among diplolepideous mosses, three peristome-types have been recognized. The development of the amphithecium in taxa characterized by an Orthotrichum ... Full text Cite

Genetic structure in relation to reproductive biology of 11 species of Pohlia Hedw. (Bryaceae)

Journal Article Systematic Botany · January 1, 1999 The moss genus Pohlia includes species with bisexual gametophytes, unisexual gametophytes and no specialized asexual propagules, and unisexual with specialized asexual 'gemmae.' A group of Northern Hemisphere species characterized by having axillary gemmae ... Full text Cite

Unusual lichens under electricity pylons on zinc-enriched soil

Journal Article Bryologist · January 1, 1999 Two species of lichens, Vezdaea leprosa (P. James) Vezda and Steinia geophana (Nyl.) B. Stein are here reported as new for North America based on collections from Durham and Orange Counties, North Carolina (U.S.A.). Both species occur frequently in the are ... Full text Cite

Life history variation in gametophyte populations of the moss Ceratodon purpureus (Ditrichaceae)

Journal Article American Journal of Botany · January 1, 1999 The life cycles of mosses and other bryophytes are unique among land plants in that the haploid gametophyte stage is free-living and the diploid sporophyte stage is ephemeral and completes its development attached to the maternal gametophyte. Despite predi ... Full text Cite

Nuclear ribosomal DNA variation in Leucobryum glaucum and L. albidum (Leucobryaceae): A preliminary investigation

Journal Article Bryologist · January 1, 1998 Leucobryum glaucum and L. albidum are generally distinguished by quantitative differences in plant height, leaf length, and transverse sectional leaf anatomy. Although extremely small plants can be readily identified as L. albidum, and large plants can be ... Full text Cite

New species of Bryaceae (Mielichhoferia, Brachymenium) from Costa Rica and Reunion

Journal Article Bryologist · January 1, 1998 Mielichhoferia paroica Shaw ang Allen is described from Costa Rica. The plants are very small, paroicous, and have a double peristome that consists of 16 long, papillose exostome teeth and a rudimentary basal membrane that barely reaches above the capsule ... Full text Cite

THE OCCURRENCE AND SIGNIFICANCE OF EPISTATIC VARIANCE FOR QUANTITATIVE CHARACTERS AND ITS MEASUREMENT IN HAPLOIDS.

Journal Article Evolution; international journal of organic evolution · April 1997 Epistatic genetic variance for quantitative traits may play an important role in evolution, but detecting epistasis in diploid organisms is difficult and requires complex breeding programs and very large sample sizes. We develop a model for detecting epist ... Full text Cite

Genetic biogeography of the rate "copper moss", Scopelophila cataractae (Pottiaceae)

Journal Article Plant Systematics and Evolution · March 1, 1995 Scopelophila cataractae, one of the so-called "copper mosses", has a broad geographic distribution that includes North, Central, and South America, Europe, and Asia, but is rare throughout its range. A genetic analysis of 32 populations from the United Sta ... Full text Cite

Ecological and experimental studies on the "copper mosses': Mielichhoferia elongata (Bryaceae) and Scopelophila cataractae (Pottiaceae)

Journal Article Fragmenta Floristica et Geobotanica · January 1, 1995 Substrate analyses of 41 samples for Mielichhoferia elongata and three each for M. mielichhoferiana and M. macrocarpa were conducted to determine if high copper concentrations are a constant feature of their habitats. Soil analyses showed that relatively f ... Cite

Genetic biogeography of the rare copper moss,″ Mielichhoferia elongata (Bryaceae)

Journal Article American Journal of Botany · January 1, 1995 Full text Cite

Clonal diversity in Sphagnum rubellum Wils.

Journal Article Bryologist · January 1, 1995 Full text Cite

Adaptation to metals in widespread and endemic plants.

Journal Article Environmental health perspectives · December 1994 Bryophytes, including the mosses, liverworts, and hornworts, occur in a variety of habitats with high concentrations of metals and have other characteristics that are advantageous for studies of metal tolerance. Mosses may evolve genetically specialized, m ... Full text Cite

Brachymenium deceptivum sp. nov. (Bryaceae) from Ethiopia

Journal Article Brittonia · April 1, 1994 Brachymenium deceptivum, known only from the type specimen, is described from Ethiopia. It is immediately distinguished from all other species of the genus by its complete lack of an exostome. © 1994 The New York Botanical Garden. ... Full text Cite

Control of sex ratios in haploid populations of the moss, Ceratodon purpureus

Journal Article American Journal of Botany · January 1, 1993 A survey of 11 populations of Ceratodon purpureus showed that sex ratios are heterogeneous, but that female biases occur in more than half the populations: 160 single spore isolates representing 40 sporophytes from one population demonstrated that female g ... Full text Cite

Population biology of the rare copper moss, Scopelophila cataractae

Journal Article American Journal of Botany · January 1, 1993 In Scopelophila cataractae (Pottiaceae) only the haploid gametophyte generation exists in the USA, although sporophytes occur in tropical America and in Asia. Over 50% of US plants in every population were devoid of gametangia, and no population contained ... Full text Cite

The evolutionary capacity of bryophytes and lichens

Journal Article Bryophytes and lichens in a changing environment · January 1, 1992 Evolutionary capacity can be thought of as the capacity for speciation, or as the rate at which a population responds to natural selection. The genetic structures of lichen and bryophyte species are described in relation to such evolutionary capacity. A pr ... Cite

Ecological genetics of serpentine tolerance in the moss, Funaria flavicans: variation within and among haploid sib families

Journal Article American Journal of Botany · January 1, 1991 Two populations of Funaria flavicans, were grown on nutrient media varying in Ni and Cr concentration and in the ratio of Mg and Ca. There was no evidence that serpentine plants were more tolerant of Ni, Cr, Mg/Ca, or high Ni combined with high Mg/Ca. Plan ... Full text Cite

Effects of metals on growth, morphology, and reproduction of Ceratodon purpureus

Journal Article Bryologist · January 1, 1991 Gametophytic plants from six populations were grown on substrates with varied degrees of heavy-metal contamination in order to assess the effects of metal pollution on growth, leaf size, and formation of archegonia and antheridia. Plants from several popul ... Full text Cite

The genetic structure of sporophytic and gametophytic populations of the moss, Funaria hygrometrica Hedw.

Journal Article Evolution · January 1, 1991 Patterns of phenotypic and genotypic variability in two populations of Funaria hygrometrica were investigated using measurements of gametophytic and sporophytic morphology, sporophytic reproductive output, spore germination, gametophytic growth rates and t ... Full text Cite

Epipterygium (Musci: Bryaceae) new to Australasia, with the description of E. opararense, sp. novo

Journal Article New Zealand Journal of Botany · October 1, 1990 Epipterygium opararense Fife and Shaw, sp. nov. is described and illustrated, based on material from the Oparara River valley in the Nelson Land District of the South Island, New Zealand. The genus Epipterygium is predominantly tropical in distribution, wi ... Full text Cite

Metal tolerances and cotolerances in the moss Funaria hygrometrica

Journal Article Canadian Journal of Botany · January 1, 1990 Protonemal growth in populations collected from most Cu-contaminated soils was inhibited by only 10-30% on media with 10 μg g -1 Cu, whereas populations from other sites were inhibited by >80%. Population differences in tolerance of Zn, Cd and Ni were not ... Full text Cite

Genetic variation for tolerance to copper and zinc within and among populations of the moss, Funaria hygrometrica Hedw.

Journal Article New Phytologist · 1988 Tolerances of 2 life history stages (protonemal growth and stem production) showed significant variation among populations, and among individuals within all populations. Heritabilities for tolerance were high within 3 populations, but were close to zero wi ... Cite

Inter- and intraspecific variation of mosses in tolerance to copper and zinc

Journal Article Evolution · January 1, 1987 Tolerance of Funaria hygrometrica to Cu and Zn was greater in populations that originated on soil with high concentrations of these metals. Protonemal growth was more inhibited by the metals than was germination; Cu was more toxic than Zn. The pattern of p ... Full text Cite

Effect of environmental pretreatment on tolerance to copper and zinc in the moss Funaria hygrometrica

Journal Article AM. J. BOT. · January 1, 1987 The effect of pretreatment on zinc- and copper-enriched media on subsequent tolerance of F. hygrometrica to these metals was tested in three individuals each from a tolerant and a nontolerant population. Some individuals showed a significant response to pr ... Full text Cite

Evolution of heavy metal tolerance in bryophytes II. An ecological and experimental investigation of the "copper moss', Scopelophila cataractae (Pottiaceae)

Journal Article American Journal of Botany · January 1, 1987 Scopelophila cataractae is known from several sites in S Arizona and occurs at 6 localities in the E USA. Chemical analyses of substrates from the E US localities showed that all but 1 population grew on Cu-enriched soil. The one substrate sample low in Cu ... Full text Cite

HEAVY-METAL TOLERANCE IN SCOPELOPHILA-CATARACTAE (MITT) BROTH

Conference AMERICAN JOURNAL OF BOTANY · May 1, 1986 Link to item Cite

The relevance of ecology to species concepts in bryophytes.

Journal Article Bryologist · January 1, 1985 Relationships between the ecological niche and species concepts are discussed by developing concepts of the niche and of character and species hypervolumes. Ecological data are best used to evaluate the biological/evolutionary significance of species defin ... Full text Cite

Character analysis, phylogeny, and classification of the moss genus Pohlia.

Journal Article Canadian Journal of Botany · January 1, 1984 Forty-one Pohlia taxa coded for their expression of 36 qualitative morphological characters are analyzed using cladistic and phenetic methods. Four major lineages within the genus differ primarily in sporophyte characters, with specific differences based l ... Full text Cite