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Full-Text Articles in Life Sciences
Genetic Structure Of Yellow Perch Populations In Coastal Areas Of Eastern Lake Michigan, Jessica N. Wesolek
Genetic Structure Of Yellow Perch Populations In Coastal Areas Of Eastern Lake Michigan, Jessica N. Wesolek
Masters Theses
Genetic population substructure is often overlooked because of discontinuities between management and actual population structure as in the case of yellow perch, an ecologically and economically important indigenous fish species in the Laurentian Great Lakes. A knowledge gaps pertaining to the natural history of yellow perch relates to the biological connectivity between nearshore Lake Michigan and drowned river mouth (DRM) lakes, where it remains unclear whether resident yellow perch from Lake Michigan use DRM lakes for spawning or whether DRM lakes contribute to nearshore yellow perch populations in Lake Michigan. I used DNA fingerprinting (genotyping) to explore biological connectivity between …
Microgeographic Population Genetic Structure Of Baylisascaris Procyonis (Nematoda: Ascaroidae) In Western Michigan Indicates The Grand River Is A Barrier To Gene Flow, Christina A. Sarkissian, Douglas H. Graham
Microgeographic Population Genetic Structure Of Baylisascaris Procyonis (Nematoda: Ascaroidae) In Western Michigan Indicates The Grand River Is A Barrier To Gene Flow, Christina A. Sarkissian, Douglas H. Graham
Student Summer Scholars Manuscripts
We developed eight polymorphic microsatellites from the parasitic nematode Baylisascaris procyonis. Amplification of these loci in a sample of 74 worms collected from 10 raccoons in Western Michigan revealed significant population structure. Bayesian clustering indicates two subpopulations, one on either side of the Grand River which bisects the region sampled. Estimates of FST, and results from AMOVA and isolation by distance, further corroborate a scenario whereby the river is acting as a barrier to gene flow, a rather unusual finding given the high vagility of raccoons and microgeographic scale of the analysis. We describe one possible mechanism …