Conservation genetic studies of the endangered Cape Fear Shiner, Notropis mekistocholas (Teleostei: Cyprinidae)

Burridge, Christopher P. and Gold, John R. 2003, Conservation genetic studies of the endangered Cape Fear Shiner, Notropis mekistocholas (Teleostei: Cyprinidae), Conservation genetics, vol. 4, no. 2, pp. 219-225, doi: 10.1023/A:1023390606975.

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Title Conservation genetic studies of the endangered Cape Fear Shiner, Notropis mekistocholas (Teleostei: Cyprinidae)
Author(s) Burridge, Christopher P.
Gold, John R.
Journal name Conservation genetics
Volume number 4
Issue number 2
Start page 219
End page 225
Publisher Springer Netherlands
Place of publication Amsterdam, The Netherlands
Publication date 2003-03
ISSN 1566-0621
Summary Genetic variation at ten microsatellite lociand one anonymous-nuclear locus was assayed for three geographic samples of the criticallyendangered North American cyprinid Notropis mekistocholas (Cape Fear shiner). Despite low abundance of this species, there was little suggestion of small population effects; allele diversity and heterozygosity were relatively high, FIS values within samples were non-significant, and genotypes were distributed in frequencies according to Hardy-Weinberg expectations. Genetic divergence among samples was minimal despite the presence of dams, constructed in the early1900s, that separate the sample sites. This suggests that recent gene flow has been sufficient to inhibit genetic divergence or that gene flow has been reduced but there has been insufficient time for genetic divergence to develop. Tests of heterozygosity excess were non-significant, suggesting that N.mekistocholas in the localities sampled have not undergone recent reductions ineffective population size. Future studies employing larger sample sizes to provide more robust tests of population structure and temporally separated samples to estimate contemporaneous Ne are warranted.
Language eng
DOI 10.1023/A:1023390606975
Field of Research 060411 Population, Ecological and Evolutionary Genetics
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2003, Kluwer Academic Publishers
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Document type: Journal Article
Collection: School of Ecology and Environment
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