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dc.contributor.authorFoote, A.
dc.contributor.authorVijay, N.
dc.contributor.authorAvila-Arcos, M.
dc.contributor.authorBaird, R.
dc.contributor.authorDurban, J.
dc.contributor.authorFumagalli, M.
dc.contributor.authorGibbs, R.
dc.contributor.authorHanson, M.
dc.contributor.authorKorneliussen, T.
dc.contributor.authorMartin, M.
dc.contributor.authorRobertson, K.
dc.contributor.authorSousa, V.
dc.contributor.authorVieira, F.
dc.contributor.authorVinar, T.
dc.contributor.authorWade, P.
dc.contributor.authorWorley, K.
dc.contributor.authorExcoffier, L.
dc.contributor.authorMorin, P.
dc.contributor.authorGilbert, Thomas
dc.contributor.authorWolf, J.
dc.date.accessioned2017-01-30T13:16:14Z
dc.date.available2017-01-30T13:16:14Z
dc.date.created2016-06-20T19:30:13Z
dc.date.issued2016
dc.identifier.citationFoote, A. and Vijay, N. and Avila-Arcos, M. and Baird, R. and Durban, J. and Fumagalli, M. and Gibbs, R. et al. 2016. Genome-culture coevolution promotes rapid divergence of killer whale ecotypes. Nature Communications. 7.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/29934
dc.identifier.doi10.1038/ncomms11693
dc.description.abstract

Analysing population genomic data from killer whale ecotypes, which we estimate have globally radiated within less than 250,000 years, we show that genetic structuring including the segregation of potentially functional alleles is associated with socially inherited ecological niche. Reconstruction of ancestral demographic history revealed bottlenecks during founder events, likely promoting ecological divergence and genetic drift resulting in a wide range of genome-wide differentiation between pairs of allopatric and sympatric ecotypes. Functional enrichment analyses provided evidence for regional genomic divergence associated with habitat, dietary preferences and post-zygotic reproductive isolation. Our findings are consistent with expansion of small founder groups into novel niches by an initial plastic behavioural response, perpetuated by social learning imposing an altered natural selection regime. The study constitutes an important step towards an understanding of the complex interaction between demographic history, culture, ecological adaptation and evolution at the genomic level.

dc.publisherMacmillan Publishers Limited
dc.titleGenome-culture coevolution promotes rapid divergence of killer whale ecotypes
dc.typeJournal Article
dcterms.source.volume7
dcterms.source.titleNature Communications
curtin.departmentDepartment of Environment and Agriculture
curtin.accessStatusOpen access via publisher


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