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dc.contributor.authorBradbury, Ian R.en_US
dc.contributor.authorHubert, Sophieen_US
dc.contributor.authorHiggins, Brenten_US
dc.contributor.authorBowman, Sharenen_US
dc.contributor.authorBorza, Tudoren_US
dc.contributor.authorPaterson, Ian G.en_US
dc.contributor.authorSnelgrove, Paul V. R.en_US
dc.contributor.authorMorris, Corey J.en_US
dc.contributor.authorGregory, Robert S.en_US
dc.contributor.authorHardie, Daviden_US
dc.contributor.authorHutchings, Jeffrey Alexanderen_US
dc.contributor.authorRuzzante, Daniel E.en_US
dc.contributor.authorTaggart, Christopher T.en_US
dc.contributor.authorBentzen, Paulen_US
dc.date.accessioned2013-07-04T18:43:10Z
dc.date.available2013-07-04T18:43:10Z
dc.date.issued2013-04en_US
dc.identifier.citationBradbury, Ian R., Sophie Hubert, Brent Higgins, Sharen Bowman, et al. 2013. "Genomic islands of divergence and their consequences for the resolution of spatial structure in an exploited marine fish." Evolutionary Applications 6(3): 450-461.en_US
dc.identifier.issn1752-4571en_US
dc.identifier.urihttp://dx.doi.org/10.1111/eva.12026en_US
dc.identifier.urihttp://hdl.handle.net/10222/29019
dc.description.abstractAs populations diverge, genomic regions associated with adaptation display elevated differentiation. These genomic islands of adaptive divergence can inform conservation efforts in exploited species, by refining the delineation of management units, and providing genomic tools for more precise and effective population monitoring and the successful assignment of individuals and products. We explored heterogeneity in genomic divergence and its impact on the resolution of spatial population structure in exploited populations of Atlantic cod, Gadus morhua, using genome wide expressed sequence derived single nucleotide polymorphisms in 466 individuals sampled across the range. Outlier tests identified elevated divergence at 5.2% of SNPs, consistent with directional selection in one-third of linkage groups. Genomic regions of elevated divergence ranged in size from a single position to several cM. Structuring at neutral loci was associated with geographic features, whereas outlier SNPs revealed genetic discontinuities in both the eastern and western Atlantic. This fine-scale geographic differentiation enhanced assignment to region of origin, and through the identification of adaptive diversity, fundamentally changes how these populations should be conserved. This work demonstrates the utility of genome scans for adaptive divergence in the delineation of stock structure, the traceability of individuals and products, and ultimately a role for population genomics in fisheries conservation.en_US
dc.relation.ispartofEvolutionary Applicationsen_US
dc.titleGenomic islands of divergence and their consequences for the resolution of spatial structure in an exploited marine fishen_US
dc.typearticleen_US
dc.identifier.volume6en_US
dc.identifier.issue3en_US
dc.identifier.startpage450en_US
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