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Baldwin, B. S., M. Black, O. Sanjur, R. Gustafson, R. Lutz and R. Vrijenhoek, 1996. A Diagnostic Molecular Marker for Zebra Mussels (Dreissena polymorpha) and Potentially Co-occurring Bivalves: Mitochondrial COI, St. Lawrence University, Rutgers University Abstract from The Sixth International Zebra Mussel and Other Aquatic Nuisance Species Conference, Dearborn, Michigan, March 1996 A Diagnostic Molecular Marker for Zebra Mussels (Dreissena polymorpha) and Potentially Co-occurring Bivalves: Mitochondrial COIWe report diagnostic differences in the nucleotide sequences of a 710 bp fragment of the mitochondrial cytochrome c oxidase subunit I gene (COI) from the zebra mussel (Dreissena polymorpha) and potentially co-occurring bivalves: the quagga mussel (D. bugensis); the Asiatic clam (Corbicula fluminea), the dark false mussel (Mytilopsis leucophaeata), and the wedge clam (Rangia cuneata). The COI sequence of the deep-water "profunda" phenotype of the quagga mussel was nearly identical to that of shallow-water quagga mussels. Restriction fragment length polymorphisms (RFLPs) in this portion of COI produced species-species differences in fragment numbers and sizes that could be used as diagnostic markers to distinguish the free-living larvae produced by these bivalves. Key Words: Zebra_mussel, Bivalve, Basic_biology |