Journal ArticleSystematic biology · October 2024
Accurately reconstructing the reticulate histories of polyploids remains a central challenge for understanding plant evolution. Although phylogenetic networks can provide insights into relationships among polyploid lineages, inferring networks may be hinde ...
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Journal ArticleMolecular phylogenetics and evolution · September 2024
Vaccinieae is a morphologically diverse and species-rich (∼1430 species) tribe in Ericaceae. Although the majority of diversity is tropical, Vaccinieae are best known for temperate crops (i.e., blueberries, cranberries, huckleberries, lingonberries) in Vac ...
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Journal ArticleRhodora · March 11, 2024
The true blueberries (Vaccinium sect. Cyanococcus; Ericaceae) comprise a clade of about nine to 24 species distributed mainly in eastern temperate North America, with one species reaching farther west. Despite extensive study, the systematics and evolution ...
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Journal ArticleJournal of the Botanical Research Institute of Texas · January 1, 2024
As part of ongoing work on the Flora of the Southeastern United States (Weakley & Southeastern Flora Team 2023) and related projects, as well as for general floristic, conservation, and scientific work in eastern North America, it is essential to document ...
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Journal ArticleJournal of the Botanical Research Institute of Texas · January 1, 2024
Since its original publication in 1789, Vaccinium virgatum has been treated by most authors as an accepted species in V. sect. Cyanococcus. In the latest comprehensive taxonomic treatment of the section, however, it is treated as a synonym of the broadly c ...
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Journal ArticleAmerican journal of botany · October 2022
PremiseThe true blueberries (Vaccinium sect. Cyanococcus; Ericaceae), endemic to North America, have been intensively studied for over a century. However, with species estimates ranging from nine to 24 and much confusion regarding species boundari ...
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Journal ArticleNature communications · March 2022
Northern Hemisphere forests changed drastically in the early Eocene with the diversification of the oak family (Fagaceae). Cooling climates over the next 20 million years fostered the spread of temperate biomes that became increasingly dominated by oaks an ...
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Journal ArticleForests · June 1, 2021
The oak flora of North America north of Mexico is both phylogenetically diverse and species-rich, including 92 species placed in five sections of subgenus Quercus, the oak clade centered on the Americas. Despite phylogenetic and taxonomic progress on the g ...
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Journal ArticleThe New phytologist · May 2020
Botanists have long recognised interspecific gene flow as a common occurrence within white oaks (Quercus section Quercus). Historical allele exchange, however, has not been fully characterised and the complex genomic signals resulting from the combination ...
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Journal ArticleThe New phytologist · May 2020
The tree of life is highly reticulate, with the history of population divergence emerging from populations of gene phylogenies that reflect histories of introgression, lineage sorting and divergence. In this study, we investigate global patterns of oak div ...
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Journal ArticleScience (New York, N.Y.) · November 2019
Wilf et al (Research Articles, 7 June 2019, eaaw5139) claim that Castanopsis evolved in the Southern Hemisphere from where it spread to its modern distribution in Southeast Asia. However, extensive paleobotanical records of Antarctica and Aus ...
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Journal ArticleNature · 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 ...
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Journal ArticleAnnals of the Missouri Botanical Garden · October 1, 2019
The eastern North American white oaks, a complex of approximately 16 potentially interbreeding species, have become a classic model for studying the genetic nature of species in a syngameon. Genetic work over the past two decades has demonstrated the reali ...
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Journal ArticleMolecular ecology · March 2018
Understanding the colonization of extreme marginal habitats and the relative roles of space and environment in maintaining peripheral populations remains challenging. Here, we leverage a system of pairs of rainforest and sandy coastal plain communities tha ...
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Journal ArticleEcology and evolution · March 2018
The geographic ranges of taxa change in response to environmental conditions. Yet whether rates of range movement (biotic velocities) are phylogenetically conserved is not well known. Phylogenetic conservatism of biotic velocities could reflect similaritie ...
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Journal ArticleAmerican journal of botany · March 2018
Premise of the studyEvolutionary and biogeographic history, including past environmental change and diversification processes, are likely to have influenced the expansion, migration, and extinction of populations, creating evolutionary legacy effe ...
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Journal ArticleMolecular phylogenetics and evolution · February 2018
The evolutionary history of Quercus section Cyclobalanopsis, a dominant lineage in East Asian evergreen broadleaved forests (EBLFs), has not been comprehensively studied using molecular tools. In this study, we reconstruct the first comprehensive phylogeny ...
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Journal ArticleThe New phytologist · January 2018
Oaks (Quercus, Fagaceae) are the dominant tree genus of North America in species number and biomass, and Mexico is a global center of oak diversity. Understanding the origins of oak diversity is key to understanding biodiversity of northern temperate fores ...
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Journal ArticleAmerican journal of botany · October 2017
Premise of the studyThe California Floristic Province (CA-FP) is a unique and diverse region of floral endemism, yet the timing and nature of divergence and diversification of many lineages remain underexplored. We seek to elucidate the evolutiona ...
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Journal ArticleGenome · September 2017
The emergence of next generation sequencing has increased by several orders of magnitude the amount of data available for phylogenetics. Reduced representation approaches, such as restriction-sited associated DNA sequencing (RADseq), have proven useful for ...
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Journal ArticleGenome · September 2017
Owing to high rates of introgressive hybridization, the plastid genome is poorly suited to fine-scale DNA barcoding and phylogenetic studies of the oak genus (Quercus, Fagaceae). At the tips of the oak plastome phylogeny, recent gene migration and reticula ...
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Journal ArticleGenome · September 2017
Species within the genus Quercus (oak) hybridize in complex patterns that have yet to be fully explored with phylogenomic data. Analyses to date have recovered reasonable divergent patterns, suggesting that the impact of introgression may not always be obv ...
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Journal ArticleProceedings. Biological sciences · May 2017
Oaks (Quercus L.) have long been suspected to hybridize in nature, and widespread genetic exchange between morphologically defined species is well documented in two- to six-species systems, but the phylogenetic consequences of hybridization in oaks ...
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Journal ArticlePloS one · January 2017
The pattern and rate of genome evolution have profound consequences in organismal evolution. Whole-genome duplication (WGD), or polyploidy, has been recognized as an important evolutionary mechanism of plant diversification. However, in non-model plants th ...
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Journal ArticleConservation Genetics · June 1, 2016
When non-native, genetically diverse species are introduced, hybridization with native congeners may erode the genetic composition of local species, perhaps even resulting in extinction. While such events may lead to adverse consequences at the community a ...
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Journal ArticleMolecular ecology · July 2015
The nature and timing of evolution of niche differentiation among closely related species remains an important question in ecology and evolution. The American live oak clade, Virentes, which spans the unglaciated temperate and tropical regions of North Ame ...
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Journal ArticleAmerican journal of botany · May 2015
Premise of the studyWe investigated the origins of 252 Southern Appalachian woody species representing 158 clades to analyze larger patterns of biogeographic connectivity around the northern hemisphere. We tested biogeographic hypotheses regarding ...
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Journal ArticlePloS one · January 2014
Previous phylogenetic studies in oaks (Quercus, Fagaceae) have failed to resolve the backbone topology of the genus with strong support. Here, we utilize next-generation sequencing of restriction-site associated DNA (RAD-Seq) to resolve a framework phyloge ...
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Journal ArticleAmerican journal of botany · September 2013
UnlabelledPremise of the studyHybridization is thought to have played an important role in diversification of the speciose shrub genus Ceanothus; putative hybrid species have been described, and data suggest that intrinsic barriers may no ...
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Journal ArticleTree Genetics and Genomes · June 1, 2012
An overview of recent achievements and development of genomic resources in the Fagaceae is provided, with major emphasis on the genera Castanea and Quercus. The Fagaceae is a large plant family comprising more than 900 species belonging to 8-10 genera. Usi ...
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Journal ArticleInternational Journal of Plant Sciences · November 1, 2011
High diversity and endemism in the California Floristic Province (CFP) are an alleged response to the late Cenozoic advent of Mediterranean-type climate in this region. Ceanothus comprises two divergent subgenera with centers of diversity in the CFP. We re ...
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Journal ArticleProceedings of the National Academy of Sciences of the United States of America · September 2010
To survive changes in climate, successful species shift their geographic ranges to remain in suitable habitats. For parasites and other highly specialized species, distributional changes not only are dictated by climate but can also be engineered by their ...
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Journal ArticleJournal Torrey Botanical Society · February 2009
STONE, D. E., S.-H. OH, E.A. TRIPP (Department of Biology, Duke University, Durham, NC 27708), L. E.
RI´OS G. (Oficina Te´cnica en Biodiversidad, Consejo Nacional de Areas Protegidas, 5 av. 6-06, zona 1, Edificio del IPM, 7 mo. nivel, Guatemala, Guatemala) ...
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Journal ArticleJournal of Biogeography · September 1, 2008
Aim: This study aims to assess the role of long-distance seed dispersal and topographic barriers in the post-glacial colonization of red maple (Acer rubrum L.) using chloroplast DNA (cpDNA) variation, and to understand whether this explains the relatively ...
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Journal ArticleEvolution; international journal of organic evolution · July 2008
Pollination systems frequently reflect adaptations to particular groups of pollinators. Such systems are indicative of evolutionary specialization and have been important in angiosperm diversification. We studied the evolution of pollination systems in the ...
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Journal ArticleAmerican journal of botany · March 2008
In the conifer genus Juniperus (Cupressaceae), many species are increasing rapidly in distribution, abundance, and dominance in arid and semiarid regions. To help understand the success of junipers in drier habitats, we studied hydraulic traits associated ...
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Journal ArticleAmerican journal of botany · May 2007
The four o'clock family (Nyctaginaceae) has a number of genera with unusual morphological and ecological characters, several of which appear to have a "tendency" to evolve repeatedly in Nyctaginaceae. Despite this, the Nyctaginaceae have attracted little a ...
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Journal ArticleMolecular ecology · December 2006
Regional phylogeographical studies involving co-distributed animal and plant species have been conducted for several areas, most notably for Europe and the Pacific Northwest of North America. Until recently, phylogeographical studies in unglaciated eastern ...
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Journal ArticleSystematic Botany · January 1, 2005
Physalis (75+ species, Solanaceae) is most diverse in Mexico, with only the type, P. alkekengi, native to the Old World. Interspecific relationships are poorly known, and despite the distinctive inflated fruiting calyces, generic limits remain uncertain. S ...
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Journal ArticleEcology · January 1, 2005
Recent models and analyses of paleoecological records suggest that tree populations are capable of rapid migration when climate warms. Fossil pollen is commonly interpreted as suggesting that the range of many temperate tree species expanded at rates of 10 ...
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Journal ArticleAmerican journal of botany · August 2004
A Bayesian phylogenetic analysis of 36 Ipomoea species using sequence data from the internal transcribed spacer region was compared with classification schemes based on traditional methods and a previously published cpDNA restriction fragment length polymo ...
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Journal ArticleInternational Journal of Plant Sciences · January 1, 2004
Nucleotide sequences of six regions from three plant genomes - trnL-F, matK, rbcL, atpB (plastid), matR (mtDNA), and 18S rDNA (nuclear) - were used to analyze inter- and infrafamilial relationships of Fagales. All 31 extant genera representing eight famili ...
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Journal ArticleInternational Journal of Plant Sciences · January 1, 2004
The perianthless members of the Piperales are unique among the basal lineages of angiosperms because they are mainly herbaceous plants with over 2000 species possessing highly reduced flowers. There have been several attempts to address the evolution of th ...
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Journal ArticleAmerican journal of botany · January 2004
The genus Globba (100 species) is one of the largest genera in the primarily tropical Zingiberaceae. Globba along with the small genera Gagnepainia, Hemiorchis, and Mantisia comprise the Globbeae, one of the two tribes of subfamily Zingiberoideae. Traditio ...
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Journal ArticleSystematic Botany · April 1, 2003
Exostema (Rubiaceae) comprises 25 neotropical woody species, ranging from western South America and Mesoamerica to the West Indies, with 19 species occurring in Cuba and Hispaniola. Biogeographical hypotheses based upon a phylogenetic analysis of morpholog ...
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Journal ArticleJournal of Biogeography · February 1, 2003
Aim: To describe current geographical patterns of genetic diversity and infer the historical population dynamics of the stone oaks (Lithocarpus) in Southeast Asia. Location: We sampled three populations in Indochina: (1) Yunnan province, China; (2) Pyin Oo ...
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Journal ArticleSystematic biology · October 2002
The objective of this study was to obtain a quantitative assessment of the monophyly of morning glory taxa, specifically the genus Ipomoea and the tribe Argyreieae. Previous systematic studies of morning glories intimated the paraphyly of Ipomoea by sugges ...
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Journal ArticleSystematic Botany · October 11, 2001
We tested the phylogenetic hypothesis that the circumscription of the genus Ipomoea comprises all members of Hallier's historical taxon, subfamily "Echinoconiae", including Argyreia, Astripomoea, Lepistemon, Rivea, Stictocardia, and Turbina. Support for th ...
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Journal ArticleAmerican journal of botany · April 2001
With ∼1000 species distributed pantropically, the genus Piper is one of the most diverse lineages among basal angiosperms. To rigorously address the evolution of Piper we use a phylogenetic analysis of sequences of the internal transcribed spacers (ITS) of ...
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Journal ArticlePhycologia · January 1, 2001
Three species of Bryopsis have commonly been reported from the western North Atlantic, but continuous morphological variation has often confounded specimen identification. This study evaluates the utility of the coding and non-coding sequences of the psbB ...
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Journal ArticleInternational Journal of Plant Sciences · January 1, 2001
The family Fagaceae includes nine currently recognized genera and ca. 1000 species, making it one of the largest and most economically important groups within the order Fagales. In addition to wide variation in cupule and fruit morphology, polymorphism in ...
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Journal ArticleAnnals of the Missouri Botanical Garden · January 1, 2001
A comprehensive systematic investigation was conducted on the extant Juglandaceae based on 25 species representing a broad sample of generic and infrageneric diversity. A total of 206 phylogenetically informative characters derived from morphological, chem ...
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Journal ArticleInternational Journal of Plant Sciences · January 1, 2001
The angiosperm family Fagaceae is a central element of several distinct community types throughout the Northern Hemisphere and a prime candidate for modern biogeographic analysis. The rich fossil record for the family provides an unparalleled source to com ...
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Journal ArticleBotanical Journal of the Linnean Society · January 1, 2000
The Bornean species of Lithocarpus Bl. section Synaedrys (Lindl.) Barnett (Fagaceae) are discussed in terms of their unifying characteristics, and keys to the species are provided. A novel morphological feature present in the genus, where the seed in the m ...
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Journal ArticleMolecular phylogenetics and evolution · August 1999
Quercus is one of the most abundant and economically important genera of woody plants in the Northern Hemisphere. To infer phylogenetic relationships within Quercus subgenus Quercus, chloroplast DNA (cpDNA) restriction sites and nucleotide sequences of the ...
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Journal ArticleSystematic Botany · January 1, 1999
Ipomoea is a large and complex genus containing over 600 species of vines and shrubs widely distributed throughout the tropics and subtropics. The phylogeny of 40 species representing the three currently recognized subgenera and nine sections within the ge ...
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Journal ArticleAmerican journal of botany · October 1997
Phylogenetic relationships were examined within the "higher" Hamamelididae using 21 species representing eight families and related outgroups. Chloroplast DNA sequences encoding the matK gene (/1 kilobase) provided 258 informative nucleotide sites. Phyloge ...
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Journal ArticleAmerican journal of botany · August 1997
Phylogenetic relationships were examined within the southern beech family Nothofagaceae using 22 species representing the four currently recognized subgenera and related outgroups. Nuclear ribosomal DNA sequences encoding the 5.8s rRNA and two flanking int ...
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