Systematics/Phytogeography / Taxonomie/ Section
Gertsen, Julia , Olmstead, Richard .
Molecular Phylogeny of Boraginaceae.
Boraginaceae, the Borage family, consist of about 134 genera and 2650 species. This clade includes herbs, shrubs, trees, occasionally lianas, and even parasites and are widely distributed both in temperate and tropical regions. Many plants are ornamentals like species of the genus Myosotis the “forget-me-nots”, and several have been used as medicinal herbs such as Symphytum officinale (comfrey) and Borago officinalis (borage). A second, smaller family, Hydrophyllaceae, the Waterleaf family, consisting of about 20 genera and 300 species, occurs primarily in western North America and has been suggested to be closely related to Boraginaceae. Building on an existing set of sequences for the chloroplast gene ndhF, we add a second DNA region, trnLF, to test the hypothesis that Hydrophyllaceae is actually part of the larger Boraginaceae. Also, we test the monophyly of subfamilial groups within Boraginaceae and Hydrophyllaceae to create a classification that allows us to make inferences about evolutionary history within the group. Here, we present a phylogenetic tree that more accurately reflects the patterns of evolution between taxa of Boraginaceae.
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1 - University of Washington, Department of Biology, Box 355325, Seattle, WA, 98105, USA
2 - University of Washington, Department of Biology, Box 355325, Seattle, Washington, 98195-5325, USA
Presentation Type: Poster:Posters for Sections
Location: Ball Room & Party Room/SUB
Date: Monday, July 28th, 2008
Time: 12:30 PM