Gene Flow in Populations of the Seven-Spotted Lady Beetle, Coccinella septempunctata Krafsur, E. S. Krafsur, Elliot Obrycki, J. J. Flanders, R. V.
dc.contributor.department Entomology 2018-02-17T21:57:45.000 2020-06-30T02:24:01Z 2020-06-30T02:24:01Z 1992
dc.description.abstract <p>Polyacrylamide gel electrophoresis was used to reveal gene diversity in exotic North American <em>Coccinella Septempunctata</em> populations. This lady beetle recently spread across the northern Nearctic. Sixteen of 28 putative loci were polymorphic; average gene diversity for all loci was 0.1598 ± 0.041. Gene frequencies were estimated at eight polymorphic loci in natural North American beetles from Arkansas, Delaware, lowa, Kansas, New York, Oregon, and Michigan. Also studied were F<sub>2</sub> beetles from four laboratory colonies that originated in Eurasia, along with field-collected beetles from France, Greece, and Sicily. Gene diversity among the Nearctic beetles was as great as that among the Palearctic beetles. Analysis of variance by Wright's method showed that only 29% of the variance in gene frequencies was between USDA cultures, Palearctic, and Nearctic beetles; 71% of the genetic variance was shared by beetles within the 21 subpopulations. No evidence of bottlenecks of drift was detected among the Nearctic subpopulations, and gene flow was essentially unrestricted.</p>
dc.description.comments <p>This article is from <em>Journal of Heredity </em>83 (1992): 440.</p>
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dc.identifier.articleid 1414
dc.identifier.contextkey 9058129
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ent_pubs/411
dc.language.iso en
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dc.subject.disciplines Entomology
dc.title Gene Flow in Populations of the Seven-Spotted Lady Beetle, Coccinella septempunctata
dc.type article
dc.type.genre article
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