Show simple item record Kovach, Ryan P. Gharrett, Anthony J. Tallmon, David A.
dc.coverage.spatial Alaska 2012-10-10T16:46:35Z 2012-10-10T16:46:35Z 2012-07-11
dc.identifier doi:10.5061/dryad.m3c53
dc.identifier.citation Kovach RP, Gharrett AJ, Tallmon DA (2012) Genetic change for earlier migration timing in a population of pink salmon. Proceedings of the Royal Society B 279(1743): 3870-3878.
dc.description To predict how climate change will influence populations it is necessary to understand the mechanisms, particularly microevolution and phenotypic plasticity, which allow populations to persist in novel environmental conditions. Although evidence for climate-induced phenotypic change in populations is widespread, evidence documenting that these phenotypic changes are due to microevolution is exceedingly rare. In this study we use 32 years of genetic data (17 complete generations) to determine whether there has been genetic change toward earlier migration timing in a population of pink salmon that shows phenotypic change; average migration time occurs nearly 2 weeks earlier than it did 40 years ago. Experimental genetic data support the hypothesis that there has been directional selection for earlier migration timing, resulting in a substantial decrease in the late migrating phenotype (from >30% to <10% of the total abundance). From 1983-2011 there was a significant decrease – over three fold – in the frequency of a genetic marker for late migration timing, but there were minimal changes in allele frequencies at other neutral loci. These results demonstrate there has been rapid microevolution for earlier migration timing in this population. Circadian rhythm genes, however, did not show any evidence for selective changes from 1993-2009.
dc.relation.haspart doi:10.5061/dryad.m3c53/1
dc.relation.isreferencedby doi:10.1098/rspb.2012.1158
dc.relation.isreferencedby PMID:22787027
dc.subject microevolution
dc.subject genetic change
dc.subject salmon
dc.subject climate change
dc.subject migration timing
dc.title Data from: Genetic change for earlier migration timing in a population of pink salmon
dc.type Article *
dwc.ScientificName Oncorhynchus gorbuscha
dc.contributor.correspondingAuthor Kovach, Ryan P.
prism.publicationName Proceedings of the Royal Society B
dryad.dansTransferDate 2017-09-26T14:22:08.777-0400
dryad.dansTransferDate 2017-10-31T15:28:05.220-0400

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Title Kovach_geneticdata
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Description These data were used in various combinations for the analyses in "Genetic change for earlier migration timing in a pink salmon population." The first sheet includes the microsatellite data, which are in GENEPOP format. The next 8 sheets are the data for the experimental genetic allozyme marker MdH. The last sheet are the daily allele counts for the "control" allozyme locus AGP. See additional details within the data.
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