Genetic diversity in populations of asexual and sexual bag worm moths (Lepidoptera: Psychidae)

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dc.contributor.author Grapputo, Alessandro
dc.contributor.author Kumpulainen, Tomi
dc.contributor.author Mappes, Johanna
dc.contributor.author Parri, Silja
dc.date.accessioned 2011-05-13T07:04:30Z
dc.date.available 2011-05-13T07:04:30Z
dc.date.issued 2005
dc.identifier.citation Grapputo, A., Kumpulainen, T. & Mappes, J. (2005). Genetic variability in populations of asexual and sexual bagworm moths (lepidoptera: psychidae). BMC Ecology, 5:5. doi:10.1186/1472-6785-5-5
dc.identifier.issn 1472-6785
dc.identifier.uri http://hdl.handle.net/123456789/26956
dc.description.abstract BACKGROUND: Despite the two-fold cost of sex, most of the higher animals reproduce sexually. The advantage of sex has been suggested to be its ability, through recombination, to generate greater genetic diversity than asexuality, thus enhancing adaptation in a changing environment. We studied the genetic diversity and the population structure of three closely related species of bag worm moths: two strictly sexual (Dahlica charlottae and Siederia rupicolella) and one strictly asexual (D. fennicella). These species compete for the same resources and share the same parasitoids. RESULTS: Allelic richness was comparable between the sexual species but it was higher than in the asexual species. All species showed high heterozygote deficiency and a large variation was observed among FIS values across loci and populations. Large genetic differentiation was observed between populations confirming the poor dispersal ability of these species. The asexual species showed lower genotype diversity than the sexual species. Nevertheless, genotype diversity was high in all asexual populations. CONCLUSION: The three different species show a similar population structure characterised by high genetic differentiation among populations and low dispersal. Most of the populations showed high heterozygote deficiency likely due to the presence of null alleles at most of the loci and/or to the Wahlund effect. Although the parthenogenetic D. fennicella shows reduced genetic diversity compared to the sexual species, it still shows surprisingly high genotype diversity. While we can not totally rule out the presence of cryptic sex, would explain this high genotype diversity, we never observed sex in the parthenogenetic D. fennicella, nor was there any other evidence of this. Alternatively, a non-clonal parthenogenetic reproduction, such as automictic thelytoky, could explain the high genotypic diversity observed in D. fennicella. en
dc.language.iso eng
dc.publisher BioMed Central
dc.relation.ispartofseries BMC Ecology
dc.rights © 2005 Grapputo et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.rights.uri http://creativecommons.org/licenses/by/2.0/
dc.subject.other geneettinen vaihtelu fi
dc.subject.other seksin evoluutio fi
dc.subject.other seksi fi
dc.subject.other evoluutio fi
dc.title Genetic diversity in populations of asexual and sexual bag worm moths (Lepidoptera: Psychidae)
dc.type Article en
dc.identifier.urn URN:NBN:fi:jyu-2011051310796
dc.subject.kota 118
dc.contributor.laitos Bio- ja ympäristötieteiden laitos fi
dc.contributor.laitos Department of Biological and Environmental Science en
dc.type.uri http://purl.org/eprint/type/JournalArticle
dc.identifier.doi doi:10.1186/1472-6785-5-5
dc.description.version Published PDF
eprint.status http://purl.org/eprint/type/status/PeerReviewed

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