Dispersal patterns of Dreissena bugensis in the Laurentian Great Lakes as inferred from highly polymorphic microsatellite markers

dc.contributor.advisorBoulding, E.G.
dc.contributor.authorWilson, Anthony B.
dc.date.accessioned2021-04-16T18:15:44Z
dc.date.available2021-04-16T18:15:44Z
dc.date.copyright1998
dc.degree.departmentDepartment of Zoologyen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.description.abstractThe freshwater Dreissenidae are well suited for rapid dispersal, retaining a primitive form of planktotrophic development and a capacity to produce byssal threads, both of which may have accelerated their spread through North America. In contrast to the radiation of Dreissena polymorpha, which has been characterized by several jump dispersal events, D. bugensis has exhibited a more gradual diffusion from its point of introduction in Lake Erie through the lower Laurentian Great Lakes. In this thesis, I develop six highly polymorphic species-specific microsatellite markers and use these markers to examine the present-day population genetic structure of D. bugensis in North America. Data suggest that, in contrast to census data suggesting diffusive dispersal of D. bugensis, high levels of gene flow have been maintained between geographically disjunct populations, presumably due to boater-mediated transport of adult mussels. At the same time, more proximate populations are significantly different, indicating non-random settlement of veliger larvae. These results suggest that divergent dispersal strategies have played an important role in the success of the quagga mussel invasion.en_US
dc.identifier.urihttps://hdl.handle.net/10214/24870
dc.language.isoen
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectfreshwater Dreissenidaeen_US
dc.subjectpolymorphicen_US
dc.subjectspecies-specificen_US
dc.subjectmicrosatellite markersen_US
dc.subjectgenetic structureen_US
dc.subjectDreissena bugensisen_US
dc.subjectNorth Americaen_US
dc.titleDispersal patterns of Dreissena bugensis in the Laurentian Great Lakes as inferred from highly polymorphic microsatellite markersen_US
dc.typeThesisen_US

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