Systematics/Phytogeography / Taxonomie/ Section
Levin, Rachel A. , Whelan, Andrew , Miller, Jill S. .
The utility of nuclear conserved ortholog set II (COSII) genomic markers for species-level phylogenetics in Lycium (Solanaceae).
The development of genetic markers to infer evolutionary relationships among closely related species and populations is perhaps the biggest current challenge in plant systematic studies. We have examined the utility of multiple unlinked nuclear conserved ortholog set II (COSII) genomic markers in understanding phylogenetic relationships among closely related species of Lycium (Solanaceae). The utility of these markers was also compared to phylogenetic hypotheses based on the nuclear granule-bound starch synthase gene and various chloroplast spacer regions. Many of these COSII markers have a very high intronic content (>75%), with high pairwise distances and variable sites and low levels of homoplasy. Thus, these markers appear to be quite promising for use in phylogenetic studies of closely related, fairly recent species.
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1 - Amherst College, Department of Biology, Amherst, MA, 01002, USA
Presentation Type: Oral Paper:Papers for Sections
Date: Wednesday, July 30th, 2008
Time: 2:30 PM