Unraveling the evolutionary history of the liverworts (Marchantiophyta): multiple taxa, genomes and analyses (original) (raw)
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1 September 2006 Unraveling the evolutionary history of the liverworts (Marchantiophyta): multiple taxa, genomes and analyses
Laura L. Forrest,E. Christine Davis,David G. Long,Barbara J. Crandall-Stotler,Alexandra Clark,Michelle L. Hollingsworth
Author Affiliations +
Laura L. Forrest,1 E. Christine Davis,2 David G. Long,3 Barbara J. Crandall-Stotler,4 Alexandra Clark,5 Michelle L. Hollingsworth5
1Department of Plant Biology, University of Southern Illinois, Carbondale, IL 62901, U.S.A. e-mail: lforrest@siu.edu
2Department of Biology, Duke University, Box 90338, Durham, NC 27708-0338, U.S.A. e-mail: ecf5@duke.edu
3Royal Botanic Garden, Edinburgh, 20A Inverleith Row, Edinburgh, EH3 5LR, Scotland, U.K. e-mail: d.long@rbge.org.uk
4Department of Plant Biology, University of Southern Illinois, Carbondale, IL 62901, U.S.A. e-mail: crandall@plant.siu.edu
5Royal Botanic Garden, Edinburgh, 20A Inverleith Row, Edinburgh, EH3 5LR, Scotland, U.K. e-mails: a.clark@rbge.org.uk; m.hollingsworth@rbge.org.uk
Abstract
Nucleotide sequence data from three chloroplast genes (_rbc_L, _rps_4 and _psb_A), one nuclear gene (the ribosomal LSU) and one mitochondrial gene (_nad_5) were assembled for 173 species in 117 genera of liverworts, making this the largest molecular phylogeny of the group to date. Analyses of these data provide support for the monophyly of the liverworts, and for previously resolved backbone relationships within the Marchantiophyta. The earliest divergence involves the “simple thalloid” taxa of the Haplomitriaceae and Treubiaceae. A Blasiaceae/complex thalloid clade is resolved as sister to all remaining liverworts. The leafy liverworts do not resolve as monophyletic. The separation of the Aneuraceae/Metzgeriaceae from all other simple thalloids and their placement within the “leafy” clade as sister to the enigmatic leafy genus Pleurozia, as suggested in earlier molecular phylogenies, is also supported by this far larger data set.
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Laura L. Forrest, E. Christine Davis, David G. Long, Barbara J. Crandall-Stotler, Alexandra Clark, and Michelle L. Hollingsworth "Unraveling the evolutionary history of the liverworts (Marchantiophyta): multiple taxa, genomes and analyses," The Bryologist 109(3), 303-334, (1 September 2006). https://doi.org/10.1639/0007-2745(2006)109[303:UTEHOT]2.0.CO;2
Received: 20 October 2005; Accepted: 1 May 2006; Published: 1 September 2006
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