Gene Flow in the Exotic Colonizing LadybeetleHarmonia axyridisin North America Krafsur, E. S. Krafsur, Elliot Kring, T. J. Miller, J. C. Nariboli, P. Obrycki, J. J. Ruberson, J. R. Schaefer, P. W.
dc.contributor.department Entomology 2018-02-17T21:47:16.000 2020-06-30T02:23:59Z 2020-06-30T02:23:59Z 1997-03-01
dc.description.abstract <p>Gene flow was studied in<em>Harmonia axyridis</em>(Pallas) (Coleoptera: Coccinellidae), an exotic, arboreal ladybeetle predator that recently spread rapidly throughout North America. A survey of isozyme polymorphisms showed 30 of 52 resolved putative loci were polymorphic (58%), and the mean heterozygosity was 16.75 ± 2.98% among all loci and 26.31 ± 4.37% at only the polymorphic loci. The mean number of alleles at the 52 loci was 2.01 ± 1.97. Gene frequencies were estimated in populations from Georgia, Virginia, Delaware, Rhode Island, Arkansas, Illinois, Iowa, and Oregon and differed significantly (<em>P</em> < 0.02) at 11 of 16 loci. Three of 16 loci (<em>Fbp, Est-1, Tre</em>) were not in Hardy–Weinberg equilibrium in all populations and are not included in the<em>F</em>statistics. Random mating was indicated within populations (<em>F</em>IS = −0.005 ± 0.014) but not among populations (<em>F</em>ST = 0.025 ± 0.005). According to Wright's island model,<em>F</em>STestimates the average number of reproducing immigrants to be equivalent to ca. 10 beetles per population per generation. Thus there was a measure of genetic differentiation caused by drift, but this differentiation was small with respect to the large geographical distances among the sampled populations. The genetic data suggest that the founding North American population(s) was substanti</p>
dc.description.comments <p>This article is from <em>Biological Control </em>8 (1997); 207, doi: <a href="" target="_blank">10.1006/bcon.1997.0508</a>. </p>
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dc.identifier archive/
dc.identifier.articleid 1407
dc.identifier.contextkey 9043929
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ent_pubs/407
dc.language.iso en
dc.source.bitstream archive/|||Sat Jan 15 00:08:40 UTC 2022
dc.source.uri 10.1006/bcon.1997.0508
dc.subject.disciplines Entomology
dc.subject.disciplines Evolution
dc.subject.disciplines Other Ecology and Evolutionary Biology
dc.subject.disciplines Population Biology
dc.subject.keywords Harmonia axyridis
dc.subject.keywords isozyme variation
dc.subject.keywords breeding structure
dc.subject.keywords gene flow
dc.subject.keywords colonizing species
dc.title Gene Flow in the Exotic Colonizing LadybeetleHarmonia axyridisin North America
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 85d1fdbf-0f97-46bb-a01d-9f769db1b921
relation.isOrgUnitOfPublication f47c8cad-50be-4fb0-8870-902ff536748c
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