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Exploring Diversification and Genome Size Evolution in Extant Gymnosperms through Phylogenetic Synthesis
Joint Authors
Davis, John M.
Soltis, Pamela S.
Burleigh, J. Gordon
Barbazuk, W. Brad
Morse, Alison M.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-01-12
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Gymnosperms, comprising cycads, Ginkgo, Gnetales, and conifers, represent one of the major groups of extant seed plants.
Yet compared to angiosperms, little is known about the patterns of diversification and genome evolution in gymnosperms.
We assembled a phylogenetic supermatrix containing over 4.5 million nucleotides from 739 gymnosperm taxa.
Although 93.6% of the cells in the supermatrix are empty, the data reveal many strongly supported nodes that are generally consistent with previous phylogenetic analyses, including weak support for Gnetales sister to Pinaceae.
A lineage through time plot suggests elevated rates of diversification within the last 100 million years, and there is evidence of shifts in diversification rates in several clades within cycads and conifers.
A likelihood-based analysis of the evolution of genome size in 165 gymnosperms finds evidence for heterogeneous rates of genome size evolution due to an elevated rate in Pinus.
American Psychological Association (APA)
Burleigh, J. Gordon& Barbazuk, W. Brad& Davis, John M.& Morse, Alison M.& Soltis, Pamela S.. 2012. Exploring Diversification and Genome Size Evolution in Extant Gymnosperms through Phylogenetic Synthesis. Journal of Botany،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-460993
Modern Language Association (MLA)
Burleigh, J. Gordon…[et al.]. Exploring Diversification and Genome Size Evolution in Extant Gymnosperms through Phylogenetic Synthesis. Journal of Botany No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-460993
American Medical Association (AMA)
Burleigh, J. Gordon& Barbazuk, W. Brad& Davis, John M.& Morse, Alison M.& Soltis, Pamela S.. Exploring Diversification and Genome Size Evolution in Extant Gymnosperms through Phylogenetic Synthesis. Journal of Botany. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-460993
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-460993