Journal ArticleAmerican journal of botany · May 2024
PremiseShared geographical patterns of population genetic variation among related species is a powerful means to identify the historical events that drive diversification. The Sphagnum capillifolium complex is a group of closely related peat mosse ...
Full textCite
Journal ArticleAnnals of botany · November 2023
Background and aimsNew plant species can evolve through the reinforcement of reproductive isolation via local adaptation along habitat gradients. Peat mosses (Sphagnaceae) are an emerging model system for the study of evolutionary genomics and hav ...
Full textCite
Journal ArticleEcology and evolution · November 2022
Population size changes and gene flow are processes that can have significant impacts on evolution. The aim of this study was to investigate the relationship of geography to patterns of gene flow and population size changes in a pair of closely related ...
Full textCite
Journal ArticleMolecular 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 textCite
Journal ArticleAnnals 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 textCite
Journal ArticleThe 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 textCite
Journal ArticleAmerican 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 textCite
Journal ArticleJournal of biogeography · March 2016
AIM: Why some species exhibit larger geographical ranges than others remains a fundamental, but largely unanswered, question in ecology and biogeography. In plants, a relationship between range size and mating system was proposed over a century ago and sub ...
Full textCite
Journal ArticleNew Zealand Journal of Botany · January 2, 2016
The filmy fern Hymenophyllum pumilio was described in 1911 from a single collection made during 1910 from New Caledonia. It was not recorded again until its rediscovery during an expedition to New Caledonia in 2012. In the interim, it was synonymised in 20 ...
Full textCite
Journal ArticleBiological 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 textCite
Journal ArticleCryptogamie, 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 textCite
Journal ArticleSystematic 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 textCite
Journal ArticleJournal 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 textCite
Journal ArticleNature 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 textCite
Journal ArticleTaxon · 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 textCite
Journal ArticleBiological 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 textCite
Journal ArticleAmerican 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 textCite
Journal ArticlePhytotaxa · November 23, 2012
Recent phylogenetic analyses challenged the traditional generic concept of the Bartramiaceae (apple mosses), especially with regard to the largest genus Bartramia. Although molecular analyses revealed the three Bartramia sections (Bartramia, Strictidium an ...
Full textCite
Journal ArticleBiological 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 textCite
Journal ArticleAmerican journal of botany · May 2024
PremiseShared geographical patterns of population genetic variation among related species is a powerful means to identify the historical events that drive diversification. The Sphagnum capillifolium complex is a group of closely related peat mosse ...
Full textCite
Journal ArticleAnnals of botany · November 2023
Background and aimsNew plant species can evolve through the reinforcement of reproductive isolation via local adaptation along habitat gradients. Peat mosses (Sphagnaceae) are an emerging model system for the study of evolutionary genomics and hav ...
Full textCite
Journal ArticleEcology and evolution · November 2022
Population size changes and gene flow are processes that can have significant impacts on evolution. The aim of this study was to investigate the relationship of geography to patterns of gene flow and population size changes in a pair of closely related ...
Full textCite
Journal ArticleMolecular 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 textCite
Journal ArticleAnnals 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 textCite
Journal ArticleThe 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 textCite
Journal ArticleAmerican 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 textCite
Journal ArticleJournal of biogeography · March 2016
AIM: Why some species exhibit larger geographical ranges than others remains a fundamental, but largely unanswered, question in ecology and biogeography. In plants, a relationship between range size and mating system was proposed over a century ago and sub ...
Full textCite
Journal ArticleNew Zealand Journal of Botany · January 2, 2016
The filmy fern Hymenophyllum pumilio was described in 1911 from a single collection made during 1910 from New Caledonia. It was not recorded again until its rediscovery during an expedition to New Caledonia in 2012. In the interim, it was synonymised in 20 ...
Full textCite
Journal ArticleBiological 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 textCite
Journal ArticleCryptogamie, 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 textCite
Journal ArticleSystematic 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 textCite
Journal ArticleJournal 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 textCite
Journal ArticleNature 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 textCite
Journal ArticleTaxon · 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 textCite
Journal ArticleBiological 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 textCite
Journal ArticleAmerican 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 textCite
Journal ArticlePhytotaxa · November 23, 2012
Recent phylogenetic analyses challenged the traditional generic concept of the Bartramiaceae (apple mosses), especially with regard to the largest genus Bartramia. Although molecular analyses revealed the three Bartramia sections (Bartramia, Strictidium an ...
Full textCite
Journal ArticleBiological 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 textCite
Journal ArticleBryologist · 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 textCite
Journal ArticleBryologist · 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 textCite
Journal ArticleMolecular 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 textCite
Journal ArticleSystematic 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 textCite
Journal ArticleAmerican journal of botany · August 2011
Premise of the studyThe presence or absence of a functional copy of a plastid gene may reflect relaxed selection, and may be phylogenetically significant, reflecting shared ancestry. In some liverworts, the plastid gene cysA is a pseudogene (infer ...
Full textCite
Journal ArticleAmerican 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 textCite
Journal ArticleMolecular 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 textCite
Journal ArticleEvolution; 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 textCite
Journal ArticleAmerican 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 textCite
Journal ArticleMolecular 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 textCite
Journal ArticlePlant systematics and evolution = Entwicklungsgeschichte und Systematik der Pflanzen · 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 textCite
Journal ArticleAmerican 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 textOpen AccessCite
Journal ArticleMolecular 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 textCite
Journal ArticleAmerican 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 textOpen AccessCite
Journal ArticleMolecular 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 textCite
Journal ArticleBiological 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 textCite
Journal ArticleSystematic 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 textCite
Journal ArticleMolecular 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 textCite
Journal ArticleSystematic 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 textCite
Journal ArticleAmerican 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 textCite