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Abstract Detail


Systematics/Phytogeography / Taxonomie/ Section

Knight, Julie A [1], Dickey, Thayne [1], Harris, James G. [1].

An Ecological and Phylogenetic study of Draba kassii (Brassicaceae), an endemic species of the Deep Creek Mountains of Western Utah.

Draba is the largest genus in the Brassicaceae, consisting of over 350 species. Many of these species are found in Western North America. Draba kassii, discovered in 1981, is a rare endemic species found only in the Deep Creek Mountains of western Utah. Recent fieldwork in the Deep Creek Mountains indicates that D. kassii is more widely distributed and found at higher elevations than previously thought. It also has a preference for dolomitic substrates rather than being limited to the quartzite and granite cliffs and crevices from which it has been known. Draba kassii is considered one of the most morphologically distinctive species in the genus due to its large leaves. In fact it is so distinctive that its evolutionary relationships to other drabas have not been obvious. In our study we used DNA sequence data from three gene regions (ITS, Chalcone synthase, and the trnL-trnF spacer of the chlorplast genome) to elucidate D. kassiiís phylogenetic relationships.


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1 - Utah Valley University, Biology, 800 West University Pkwy., Orem, UT, 84058, USA

Keywords:
Draba
Draba kassii
Brassicaceae
Utah
Deep Creek Mountains.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Ball Room & Party Room/SUB
Date: Monday, July 28th, 2008
Time: 12:30 PM
Number: PSP065
Abstract ID:772


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