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dc.contributor.authorKvalnes, Thomas
dc.contributor.authorRingsby, Thor Harald
dc.contributor.authorJensen, Henrik
dc.contributor.authorHagen, Ingerid Julie
dc.contributor.authorRønning, Bernt
dc.contributor.authorPärn, Henrik
dc.contributor.authorHoland, Håkon
dc.contributor.authorEngen, Steinar
dc.contributor.authorSæther, Bernt-Erik
dc.date.accessioned2017-10-30T13:14:16Z
dc.date.available2017-10-30T13:14:16Z
dc.date.created2017-05-23T09:55:04Z
dc.date.issued2017
dc.identifier.issn0014-3820
dc.identifier.urihttp://hdl.handle.net/11250/2462904
dc.description.abstractA general assumption in quantitative genetics is the existence of an intermediate phenotype with higher mean individual fitness in the average environment than more extreme phenotypes. Here we investigate the evolvability and presence of such a phenotype in wild bird populations from an eleven-year experiment with four years of artificial selection for long and short tarsus length, a proxy for body size. The experiment resulted in strong selection in the imposed directions. However, artificial selection was counteracted by reduced production of recruits in offspring of artificially selected parents. This resulted in weak natural selection against extreme trait values. Significant responses to artificial selection were observed at both the phenotypic and genetic level, followed by a significant return towards pre-experimental means. During artificial selection, the annual observed phenotypic response closely followed the predicted response from quantitative genetic theory (r_years = 0.96, r_cohorts = 0.56). The rapid return to pre-experimental means was induced by three interacting mechanisms: selection for an intermediate phenotype, immigration and recombination between selected and unselected individuals. The results of this study demonstrates the evolvability of phenotypes and that selection may favour an intermediate phenotype in wild populations.nb_NO
dc.language.isoengnb_NO
dc.publisherWileynb_NO
dc.subjectKvantitativ genetikknb_NO
dc.subjectQuantitative geneticsnb_NO
dc.subjectEvolusjonnb_NO
dc.subjectEvolutionnb_NO
dc.titleReversal of response to artificial selection on body size in a wild passerine birdnb_NO
dc.typeJournal articlenb_NO
dc.description.versionsubmittedVersionnb_NO
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480nb_NO
dc.subject.nsiVDP::Zoology and botany: 480nb_NO
dc.source.journalEvolutionnb_NO
dc.identifier.doi10.1111/evo.13277
dc.identifier.cristin1471518
dc.relation.projectNorges forskningsråd: 223257nb_NO
dc.relation.projectNorges forskningsråd: 23257/F50nb_NO
dc.relation.projectNorges forskningsråd: 204303nb_NO
dc.relation.projectNorges forskningsråd: 221956nb_NO
dc.description.localcodeThis is the pre-peer reviewed version of the following article: [Reversal of response to artificial selection on body size in a wild passerine bird], which has been published in final form at [http://onlinelibrary.wiley.com/doi/10.1111/evo.13277/abstract]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.nb_NO
cristin.unitcode194,66,10,0
cristin.unitcode194,63,15,0
cristin.unitnameInstitutt for biologi
cristin.unitnameInstitutt for matematiske fag
cristin.ispublishedfalse
cristin.fulltextpostprint
cristin.qualitycode2


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