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Abstract Detail


The Challenges Posed by Large Data Sets in Assembling the Plant and Fungal Trees of Life

Devos, Nicolas [1], Shaw, Blanka [1].

Partitioning of taxic and phylogenetic diversity in the liverworts (Marchantiophyta).

Liverworts (Marchantiophyta), the oldest living lineage of land plant, comprise 74 families and some 8000 species in 377 genera. They occur worldwide in a broad range of environments, but much of the diversity is found in the Southern Hemisphere. The Liverwort Tree of Life Project, which aims at resolving the phylogenetic relationships among all liverwort genera, provides an unparalleled insight into early land plant evolution and patterns of phylogenetic diversification. Five chloroplast, two mitochondrial and one nuclear DNA sequences were sequenced for 850 accessions belonging to 250 genera. We present here the first result of this large-scale phylogenetic analysis, explore the effect of missing data on the phylogenetic reconstruction and discuss how phylogenetic diversity is partitioned among major clades of leafy liverworts, and how that diversity compares to the partitioning of species diversity.


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1 - Duke University, Department of Biology, 139 Biological Sciences Building, PO Box 90338, Durham, North Carolina, 27708, USA

Keywords:
liverworts
Tree of Life
phylogenetic tree.

Presentation Type: Symposium or Colloquium Presentation
Session: SY5
Location: Ballroom 2/Cliff Lodge - Level B
Date: Tuesday, July 28th, 2009
Time: 8:00 AM
Number: SY5001
Abstract ID:114


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