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Abstract Detail



Systematics Section/ASPT

White, Dawson [1], Mason-Gamer, Roberta [2].

Old specimens, new results: Intrageneric relationships of the Coca genus (Erythroxylum) as expressed by chloroplast loci.

The Coca genus, Erythroxylum (Erythroxylaceae), is remarkable as a biological model for investigating neotropical plant evolution because it represents a species-rich genus with high species diversity in the Neotropics (ca. 190 species in the Neotropics, ca. 240 species total). However, our knowledge of the status of Erythroxylum species and their intrageneric relationships is lacking despite the significant cultural and economic importance of the family due to the cultivated coca taxa (E. coca var. coca, E. coca var. ipadu, E. novogranatense var. novogranatense and E. novogranatense var. truxillense). In an effort to understand the intrageneric relationships of the genus, several chloroplast loci have been sequenced from herbarium specimens and a molecular phylogeny has been constructed. An accurate estimate of phylogenetic relationships is important not only for understanding the relationships between the cultivated taxa and determination of sister species, but for testing the monophyly of neotropical Erythroxylum as well as identifying subclades on which models of neotropical plant diversification can be tested.

Broader Impacts:


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1 - University of Illinois at Chicago, Biological Sciences Department, Room 1016 SEL (M/C 066), 842 W. Taylor St., Chicago, IL, 60607, United States
2 - University of Illinois Chicago, DEPT. OF BIOLOGICAL SCIENCES (M/C 066), 845 W. TAYLOR ST., CHICAGO, IL, 60607, USA

Keywords:
Coca
Phylogenetics
cpDNA
tropical botany
Erythroxylaceae.

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: PSY022
Abstract ID:329
Candidate for Awards:None


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