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Research Abstracts Online
January 2010 - March 2011

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University of Minnesota Twin Cities
College of Biological Sciences
College of Food, Agricultural, and Natural Resource Sciences
Department of Plant Biology

PI: David Moeller

Evolutionary Genetic Limits on Species’ Geographic Ranges; Ecological Speciation in Clarkia

This group’s work broadly examines evolutionary dynamics at geographic distributional boundaries. One project examines the evolutionary limits on range expansion using multi-locus population genetic data based on nuclear and cytoplasmic sequences and microsatellites. A second project examines the evolutionary interactions between recently diverged taxa in sympatry. This project uses molecular population genetic data to reconstruct the history of populations and to estimate rates of hybridization and introgression where taxa come into secondary contact. The researchers also seek to use next-generation sequencing to examine genome-wide patterns of divergence between taxa, including the identification of loci that have been the targets of natural selection during taxon divergence. 

Group Member

James Pettengill, Research Associate