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Abstract Detail


Systematics Section / ASPT

Marx, Hannah [1], Olmstead, Richard [2].

Phylogeny and Evolution of the Vebenaceae: Evidence from DNA Sequences.

Historically, the family Verbenaceae has been a large and poorly defined group due to the wide range of morphological characters and geographical distribution. Previous studies have removed many genera of the traditionally recognized Vebenaceae to the family Lamiaceae, and redefined Verbenaceae to be a relatively small and monophyletic group comprised of 4-7 tribes with 34 genera and 1200 species. Verbenaceae include small forest trees, shrubs, herbs, and lianas. The family is predominantly found in the New World, with a few groups in Africa and Madagascar, and occurs in habitats ranging from wet tropical forests to temperate deserts and high Andean ecosystems. This study builds upon preliminary DNA sequence data, which include chloroplast ndhF gene for 19 genera/44 species and trnL-F region for 22 genera/72 species, as well as nuclear waxy gene for 19 genera/37 species. We aim to produce a detailed molecular phylogeny that may be used to answer systematic and evolutionary questions concerning the family, such as the monophyly of tribes circumscribed by conventional taxonomists based upon morphological characters. Using field-collected leaf tissue from the United States, Cuba, Puerto Rico, Nicaragua, and Argentina, as well as herbarium specimens, we have sequenced the ndhF, trnL-F, and waxy genes for many more taxa. Here we present an updated phylogeny of the Verbenaceae, with the most extensive sampling in both taxa and characters.


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1 - University of Washington, Department of Biology, Box 355325, Seattle, WA, 98195, USA
2 - University of Washington, Department of Biology, Box 355325, Seattle, Washington, 98195-5325, USA

Keywords:

phylogeny
Verbenaceae.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM
Number: P59059
Abstract ID:1302


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