Population genomic analyses of early-phase Atlantic Salmon (Salmo salar) domestication/captive breeding

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dc.contributor.authorMäkinen, Hannu
dc.contributor.authorVasemägi, Anti
dc.contributor.authorMcGinnity, Philip
dc.contributor.authorCross, Thomas F.
dc.contributor.authorPrimmer, Craig R.
dc.date.accessioned2018-03-28T08:34:36Z
dc.date.available2018-03-28T08:34:36Z
dc.date.issued2014-10-24
dc.date.updated2018-03-14T09:25:27Z
dc.description.abstractDomestication can have adverse genetic consequences, which may reduce the fitness of individuals once released back into the wild. Many wild Atlantic salmon (Salmo salar L.) populations are threatened by anthropogenic influences, and they are supplemented with captively bred fish. The Atlantic salmon is also widely used in selective breeding programs to increase the mean trait values for desired phenotypic traits. We analyzed a genomewide set of SNPs in three domesticated Atlantic salmon strains and their wild conspecifics to identify loci underlying domestication. The genetic differentiation between domesticated strains and wild populations was low (FST < 0.03), and domesticated strains harbored similar levels of genetic diversity compared to their wild conspecifics. Only a few loci showed footprints of selection, and these loci were located in different linkage groups among the different wild population/hatchery strain comparisons. Simulated scenarios indicated that differentiation in quantitative trait loci exceeded that in neutral markers during the early phases of divergence only when the difference in the phenotypic optimum between populations was large. This study indicates that detecting selection using standard approaches in the early phases of domestication might be challenging unless selection is strong and the traits under selection show simple inheritance patterns.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMäkinen, H., Vasemägi, A., McGinnity, P., Cross, T. F., Primmer, C. R. (2015) 'Population genomic analyses of early-phase Atlantic Salmon (Salmo salar) domestication/captive breeding', Evolutionary Applications, 8(1), pp. 93-107. doi:10.1111/eva.12230en
dc.identifier.doi10.1111/eva.12230
dc.identifier.endpage107en
dc.identifier.issn1752-4563
dc.identifier.issn1752-4571
dc.identifier.issued1en
dc.identifier.journaltitleEvolutionary Applicationsen
dc.identifier.startpage93en
dc.identifier.urihttps://hdl.handle.net/10468/5706
dc.identifier.volume8en
dc.language.isoenen
dc.publisherJohn Wiley & Sons, Ltd.en
dc.relation.urihttp://doi.org/10.5061/dryad.5p7s0
dc.rights© 2014, the Authors. Evolutionary Applications published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectAdaptationen
dc.subjectAquacultureen
dc.subjectCaptive populationsen
dc.subjectEcological geneticsen
dc.subjectPopulation geneticsen
dc.subjectEmpiricalen
dc.subjectPositive selectionen
dc.subjectGenetic-variationen
dc.subjectArtificial selectionen
dc.subjectReduced fitnessen
dc.subjectComplex traitsen
dc.subjectRainbow trouten
dc.subjectSoft sweepsen
dc.subjectWilden
dc.titlePopulation genomic analyses of early-phase Atlantic Salmon (Salmo salar) domestication/captive breedingen
dc.typeArticle (peer-reviewed)en
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