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Abstract Detail



Population Genetics

Augustus, Gaius [1], McNeal, Joel [2].

Population genetics of Beaked Dodder (Cuscuta rostrata) in Georgia.

Cuscuta rostrata (Convolvulaceae), a self-incompatible parasitic vine with a high elevation, southern Appalachian distribution indicative of a glacial relict species, reaches its southernmost extent in the Blue Ridge Mountains of northern Georgia. Most Georgia sites, despite the abundant availability of suitable hosts, have small population sizes, often exhibit low seed set and viability, and are also susceptible to insect pests such as aphids. To explore the genetic structure and population genetics of the species at the southern end of its range, microsatellite loci were identified using transcriptome data. These primers were tested on individuals across known Georgia populations. Several loci thus far have shown variability among individuals both within and across populations with multiple alleles shared across populations. Genetic structure and variability of the Georgia populations will be compared to healthy populations from the core range of the species. As additional loci and populations are added, we hope to gain a better understanding of how populations of primary consumers stranded in scattered, isolated islands of habitat may react to future climate change.

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1 - Kennesaw State University, Biology, 1000 Chastain Rd., Kennesaw, GA, 30144-5591, USA
2 - Kennesaw State University, 1000 Chastain Rd., Kennesaw, GA, 30144-5591, USA

Keywords:
Cuscuta
population genetics
Convolvulaceae.

Presentation Type: Poster:Posters for Topics
Session: P
Location: Grand Salon A - D/Riverside Hilton
Date: Monday, July 29th, 2013
Time: 5:30 PM
Number: PPG004
Abstract ID:903
Candidate for Awards:Genetics Section Poster Award


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