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Mitochondrial DNA Analysis of Striped Bass Populations in Chesapeake Bay

Robert W. Chapman
Copeia
Vol. 1990, No. 2 (Jun. 27, 1990), pp. 355-366
DOI: 10.2307/1446341
Stable URL: http://www.jstor.org/stable/1446341
Page Count: 12
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Mitochondrial DNA Analysis of Striped Bass Populations in Chesapeake Bay
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Abstract

One hundred and ninety-six specimens of striped bass, Morone saxatilis, from nine localities in Chesapeake Bay and Dan River, North Carolina were examined by restriction endonuclease digestions for mitochondrial DNA (mtDNA) variation. The restriction enzymes Hind III, Bcl I, Eco RI, and Nci I revealed mtDNA size polymorphisms rather than restriction site changes as the most common form of variation. Genetic distances among populations in the total and a reduced data base were clustered by the unweighted pair-group method. The results support previous work that identified distinct populations in Chesapeake Bay. The results also show evidence of the effects of migration patterns and sexually asymmetric homing responses on mtDNA haplotype frequencies.

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