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Abstract Detail

Systematics Section/ASPT

Stern, Stephen [1], Hooker, Marcus [2].

Genetics of two Astragalus species endemic to Colorado and Utah.

The genus Astragalus is one of the largest genera of plants and is known for its specialization on edaphic conditions and extreme habitats, particularly in temperate regions. Astragalus linifolius (the Grand Junction milkvetch) is known only from Mesa, Delta, and Montrose Counties in western Colorado while Astragalus rafaelensis (the San Rafael milkvetch) is found in Montrose County, Colorado and Emery and Grand Counties, Utah. Using molecular phylogenetic and AFLP techniques, we assessed the genetic diversity of these two endemic species. This work helps clarify previous taxonomic conclusions that these are in fact two distinct species and provides preliminary data on the genetic diversity within and between populations of these species. We also use field and herbarium collections to predict geographic areas that might harbor previously unknown populations of these species using GIS tools, which will be confirmed by field observation.

Broader Impacts:

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1 - Colorado Mesa University, Biological Sciences, 1100 North Ave., Grand Junction, CO, 81501, United States
2 - Washington State University, 425 Maxwell St. #1, Palouse, WA, 99161, USA


Presentation Type: Poster:Posters for Sections
Session: P
Location: Grand Salon A - D/Riverside Hilton
Date: Monday, July 29th, 2013
Time: 5:30 PM
Number: PSY026
Abstract ID:711
Candidate for Awards:None

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