Data from: Temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing
Though genetic diversity is necessary for population persistence in rapidly changing environments, little is known about how climate-warming influences patterns of intra-population genetic variation. For a pink salmon population experiencing increasing temperatures, we used temporal genetic data (mi...
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ftdryad:oai:v1.datadryad.org:10255/dryad.47224 2023-05-15T17:59:40+02:00 Data from: Temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing Kovach, Ryan P. Gharrett, Anthony J. Tallmon, David A. Alaska 2013-03-04T21:44:02Z http://hdl.handle.net/10255/dryad.47224 https://doi.org/10.5061/dryad.p2m22 unknown doi:10.5061/dryad.p2m22/1 doi:10.1111/eva.12066 doi:10.5061/dryad.p2m22 Kovach RP, Gharrett AJ, Tallmon DA (2013) Temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing. Evolutionary Applications 6(5): 795–807. http://hdl.handle.net/10255/dryad.47224 salmon Climate Change phenology genetic diversity genetic change genetic divergence genetic effective population size Article 2013 ftdryad https://doi.org/10.5061/dryad.p2m22 https://doi.org/10.5061/dryad.p2m22/1 https://doi.org/10.1111/eva.12066 2020-01-01T15:00:19Z Though genetic diversity is necessary for population persistence in rapidly changing environments, little is known about how climate-warming influences patterns of intra-population genetic variation. For a pink salmon population experiencing increasing temperatures, we used temporal genetic data (microsatellite = 1993, 2001, 2009; allozyme = 1979, 1981, 1983) to quantify the genetic effective population size (Ne) and genetic divergence due to differences in migration timing and to estimate whether these quantities have changed over time. We predicted that temporal trends toward earlier migration timing and a corresponding loss of phenotypic variation would decrease genetic divergence based on migration timing and Ne. We observed significant genetic divergence based on migration timing and genetic heterogeneity between early- and late-migrating fish. There was also some evidence for divergent selection between early- and late-migrating fish at circadian rhythm genes, but results varied over time. Estimates of Ne from multiple methods were large (>1200) and Ne/Nc generally exceeded 0.2. Despite shifts in migration timing and loss of phenotypic variation, there was no evidence for changes in within-population genetic divergence or Ne over the course of this study. These results suggest that in instances of population stability, genetic diversity may be resistant to climate-induced changes in migration timing. Article in Journal/Newspaper Pink salmon Alaska Dryad Digital Repository (Duke University) |
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Dryad Digital Repository (Duke University) |
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topic |
salmon Climate Change phenology genetic diversity genetic change genetic divergence genetic effective population size |
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salmon Climate Change phenology genetic diversity genetic change genetic divergence genetic effective population size Kovach, Ryan P. Gharrett, Anthony J. Tallmon, David A. Data from: Temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing |
topic_facet |
salmon Climate Change phenology genetic diversity genetic change genetic divergence genetic effective population size |
description |
Though genetic diversity is necessary for population persistence in rapidly changing environments, little is known about how climate-warming influences patterns of intra-population genetic variation. For a pink salmon population experiencing increasing temperatures, we used temporal genetic data (microsatellite = 1993, 2001, 2009; allozyme = 1979, 1981, 1983) to quantify the genetic effective population size (Ne) and genetic divergence due to differences in migration timing and to estimate whether these quantities have changed over time. We predicted that temporal trends toward earlier migration timing and a corresponding loss of phenotypic variation would decrease genetic divergence based on migration timing and Ne. We observed significant genetic divergence based on migration timing and genetic heterogeneity between early- and late-migrating fish. There was also some evidence for divergent selection between early- and late-migrating fish at circadian rhythm genes, but results varied over time. Estimates of Ne from multiple methods were large (>1200) and Ne/Nc generally exceeded 0.2. Despite shifts in migration timing and loss of phenotypic variation, there was no evidence for changes in within-population genetic divergence or Ne over the course of this study. These results suggest that in instances of population stability, genetic diversity may be resistant to climate-induced changes in migration timing. |
format |
Article in Journal/Newspaper |
author |
Kovach, Ryan P. Gharrett, Anthony J. Tallmon, David A. |
author_facet |
Kovach, Ryan P. Gharrett, Anthony J. Tallmon, David A. |
author_sort |
Kovach, Ryan P. |
title |
Data from: Temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing |
title_short |
Data from: Temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing |
title_full |
Data from: Temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing |
title_fullStr |
Data from: Temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing |
title_full_unstemmed |
Data from: Temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing |
title_sort |
data from: temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing |
publishDate |
2013 |
url |
http://hdl.handle.net/10255/dryad.47224 https://doi.org/10.5061/dryad.p2m22 |
op_coverage |
Alaska |
genre |
Pink salmon Alaska |
genre_facet |
Pink salmon Alaska |
op_relation |
doi:10.5061/dryad.p2m22/1 doi:10.1111/eva.12066 doi:10.5061/dryad.p2m22 Kovach RP, Gharrett AJ, Tallmon DA (2013) Temporal patterns of genetic variation in a salmon population undergoing rapid change in migration timing. Evolutionary Applications 6(5): 795–807. http://hdl.handle.net/10255/dryad.47224 |
op_doi |
https://doi.org/10.5061/dryad.p2m22 https://doi.org/10.5061/dryad.p2m22/1 https://doi.org/10.1111/eva.12066 |
_version_ |
1766168516716658688 |