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dc.contributor.authorSendell-Price, Ashley T
dc.contributor.authorRuegg, Kristen C
dc.contributor.authorClegg, Sonya M
dc.date.accessioned2020-07-24T06:29:42Z
dc.date.available2020-07-24T06:29:42Z
dc.date.issued2020
dc.identifier.issn0018-067X
dc.identifier.doi10.1038/s41437-020-0298-8
dc.identifier.urihttp://hdl.handle.net/10072/395822
dc.description.abstractTheory predicts that when populations are established by few individuals, random founder effects can facilitate rapid phenotypic divergence even in the absence of selective processes. However, empirical evidence from historically documented colonisations suggest that, in most cases, drift alone is not sufficient to explain the rate of morphological divergence. Here, using the human-mediated introduction of the silvereye (Zosterops lateralis) to French Polynesia, which represents a potentially extreme example of population founding, we reassess the potential for morphological shifts to arise via drift alone. Despite only 80 years of separation from their New Zealand ancestors, French Polynesian silvereyes displayed significant changes in body and bill size and shape, most of which could be accounted for by drift, without the need to invoke selection. However, signatures of selection at genes previously identified as candidates for bill size and body shape differences in a range of bird species, also suggests a role for selective processes in driving morphological shifts within this population. Twenty-four SNPs in our RAD-Seq dataset were also found to be strongly associated with phenotypic variation. Hence, even under population founding extremes, when it is difficult to reject drift as the sole mechanism based on rate tests of phenotypic shifts, the additional role of divergent natural selection in novel environments can be revealed at the level of the genome.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherNature Publishing Group
dc.relation.ispartofpagefrom535
dc.relation.ispartofpageto549
dc.relation.ispartofissue4
dc.relation.ispartofjournalHeredity
dc.relation.ispartofvolume124
dc.subject.fieldofresearchEvolutionary biology
dc.subject.fieldofresearchGenetics
dc.subject.fieldofresearchcode3104
dc.subject.fieldofresearchcode3105
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsEcology
dc.subject.keywordsHeredity
dc.titleRapid morphological divergence following a human-mediated introduction: the role of drift and directional selection
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationSendell-Price, AT; Ruegg, KC; Clegg, SM, Rapid morphological divergence following a human-mediated introduction: the role of drift and directional selection, Heredity, 2020, 124 (4), pp. 535-549
dcterms.dateAccepted2020-02-03
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/
dc.date.updated2020-07-24T06:26:12Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
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gro.griffith.authorClegg, Sonya


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