Project Type MQP Submission date 2009-04-30 Authors Mallory Rose McMurrough, BIO Laura A. Saltzman, BIO URN E-project-043009-143347 Title INTROGRESSIVE HYBRIDIZATION BETWEEN NATIVE AND INVASIVE CRAYFISH: A STUDY IN THE BLACKSTONE RIVER VALLEY Advisor Mathews, Lauren M, BB Availability unrestricted
The Blackstone Valley Watershed provides a unique opportunity to study phylogeographic relationships between two related crayfish species, Orconectes virilis and O. quinebaugensis. Crayfish were collected from various sites in the watershed and individuals were analyzed for the COI mitochondrial gene, a microsatellite allele (Ov54), and pleopod and chelae morphology. The COI gene had two haplotypes associated with O. virilis and with O. quinebaugensis. The Ov54 locus yielded three genotypes, AA, BB, and AB. The Ov54 genotype was dependent on COI haplotype (p<0.05) and both Ov54 genotype and COI haplotype were significantly related to pleopod angle. We consider these results in the context of possible introgression between the two species.
Browse by Author | Browse by Department | Search all available E-projects
Questions? Email email@example.com