Data from: Genetic population structure and variation at phenology-related loci in anadromous Arctic char (Salvelinus alpinus)
The Arctic will be especially affected by climate change, resulting in altered seasonal timing. Anadromous Arctic char (Salvelinus alpinus) is strongly influenced by sea surface temperature (SST) delimiting time periods available for foraging in the sea. Recent studies of salmonid species have shown...
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ftzenodo:oai:zenodo.org:3976991 2023-05-15T14:37:36+02:00 Data from: Genetic population structure and variation at phenology-related loci in anadromous Arctic char (Salvelinus alpinus) Madsen, Rikke P.A. Jacobsen, Magnus W. O'Malley, Kathlee G. Nygaard, Rasmus Præbel, Kim Jónsson, Bjarni Pujolar, Jose M. Fraser, Dylan J. Bernatchez, Louis Hansen, Michael M. 2020-08-07 https://zenodo.org/record/3976991 https://doi.org/10.5061/dryad.sc30mr1 unknown https://zenodo.org/communities/dryad https://zenodo.org/record/3976991 https://doi.org/10.5061/dryad.sc30mr1 oai:zenodo.org:3976991 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Salvelinus alpinus Clock Gene Arctic char sea surface temperature info:eu-repo/semantics/other dataset 2020 ftzenodo https://doi.org/10.5061/dryad.sc30mr1 2023-03-10T18:26:12Z The Arctic will be especially affected by climate change, resulting in altered seasonal timing. Anadromous Arctic char (Salvelinus alpinus) is strongly influenced by sea surface temperature (SST) delimiting time periods available for foraging in the sea. Recent studies of salmonid species have shown variation at phenology-related loci associated with timing of migration and spawning. We contrasted genetic population structure at 53 SNPs versus four phenology-related loci among 15 anadromous Arctic char populations from Western Greenland and three outgroup populations. Among anadromous populations, the time period available for foraging at sea (> 2oC) ranges from a few weeks to several months, motivating two research questions: 1) Is population structure compatible with possibilities for evolutionary rescue of anadromous populations during climate change? 2) Does selection associated with latitude or SST regimes act on phenology-related loci? In Western Greenland, strong isolation-by-distance at SNPs was observed and spatial autocorrelation analysis showed genetic patch size up to 450 km, documenting contingency and gene flow among populations. Outlier tests provided no evidence for selection at phenology-related loci. However, in Western Greenland, mean allele length at OtsClock1b was positively associated with the time of year when SST first exceeded 2oC and negatively associated with duration of the period where SST exceeded 2oC. This is consistent with local adaptation for making full use of the time period available for foraging in the sea. Current adaptation may become maladaptive under climate change, but long-distance connectivity of anadromous populations could redistribute adaptive variation across populations and lead to evolutionary rescue. SNP genotypes of Arctic charSNP genotypes (53 loci) encompassing all analyzed Arctic char populations in GENEPOP format.SNPs_all.genPhenology-related lociGenotypes at 4 phenology-related loci in all analyzed Arctic char populations in GENEPOP ... Dataset Arctic Climate change Greenland Salvelinus alpinus Zenodo Arctic Greenland |
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Open Polar |
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Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Salvelinus alpinus Clock Gene Arctic char sea surface temperature |
spellingShingle |
Salvelinus alpinus Clock Gene Arctic char sea surface temperature Madsen, Rikke P.A. Jacobsen, Magnus W. O'Malley, Kathlee G. Nygaard, Rasmus Præbel, Kim Jónsson, Bjarni Pujolar, Jose M. Fraser, Dylan J. Bernatchez, Louis Hansen, Michael M. Data from: Genetic population structure and variation at phenology-related loci in anadromous Arctic char (Salvelinus alpinus) |
topic_facet |
Salvelinus alpinus Clock Gene Arctic char sea surface temperature |
description |
The Arctic will be especially affected by climate change, resulting in altered seasonal timing. Anadromous Arctic char (Salvelinus alpinus) is strongly influenced by sea surface temperature (SST) delimiting time periods available for foraging in the sea. Recent studies of salmonid species have shown variation at phenology-related loci associated with timing of migration and spawning. We contrasted genetic population structure at 53 SNPs versus four phenology-related loci among 15 anadromous Arctic char populations from Western Greenland and three outgroup populations. Among anadromous populations, the time period available for foraging at sea (> 2oC) ranges from a few weeks to several months, motivating two research questions: 1) Is population structure compatible with possibilities for evolutionary rescue of anadromous populations during climate change? 2) Does selection associated with latitude or SST regimes act on phenology-related loci? In Western Greenland, strong isolation-by-distance at SNPs was observed and spatial autocorrelation analysis showed genetic patch size up to 450 km, documenting contingency and gene flow among populations. Outlier tests provided no evidence for selection at phenology-related loci. However, in Western Greenland, mean allele length at OtsClock1b was positively associated with the time of year when SST first exceeded 2oC and negatively associated with duration of the period where SST exceeded 2oC. This is consistent with local adaptation for making full use of the time period available for foraging in the sea. Current adaptation may become maladaptive under climate change, but long-distance connectivity of anadromous populations could redistribute adaptive variation across populations and lead to evolutionary rescue. SNP genotypes of Arctic charSNP genotypes (53 loci) encompassing all analyzed Arctic char populations in GENEPOP format.SNPs_all.genPhenology-related lociGenotypes at 4 phenology-related loci in all analyzed Arctic char populations in GENEPOP ... |
format |
Dataset |
author |
Madsen, Rikke P.A. Jacobsen, Magnus W. O'Malley, Kathlee G. Nygaard, Rasmus Præbel, Kim Jónsson, Bjarni Pujolar, Jose M. Fraser, Dylan J. Bernatchez, Louis Hansen, Michael M. |
author_facet |
Madsen, Rikke P.A. Jacobsen, Magnus W. O'Malley, Kathlee G. Nygaard, Rasmus Præbel, Kim Jónsson, Bjarni Pujolar, Jose M. Fraser, Dylan J. Bernatchez, Louis Hansen, Michael M. |
author_sort |
Madsen, Rikke P.A. |
title |
Data from: Genetic population structure and variation at phenology-related loci in anadromous Arctic char (Salvelinus alpinus) |
title_short |
Data from: Genetic population structure and variation at phenology-related loci in anadromous Arctic char (Salvelinus alpinus) |
title_full |
Data from: Genetic population structure and variation at phenology-related loci in anadromous Arctic char (Salvelinus alpinus) |
title_fullStr |
Data from: Genetic population structure and variation at phenology-related loci in anadromous Arctic char (Salvelinus alpinus) |
title_full_unstemmed |
Data from: Genetic population structure and variation at phenology-related loci in anadromous Arctic char (Salvelinus alpinus) |
title_sort |
data from: genetic population structure and variation at phenology-related loci in anadromous arctic char (salvelinus alpinus) |
publishDate |
2020 |
url |
https://zenodo.org/record/3976991 https://doi.org/10.5061/dryad.sc30mr1 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Climate change Greenland Salvelinus alpinus |
genre_facet |
Arctic Climate change Greenland Salvelinus alpinus |
op_relation |
https://zenodo.org/communities/dryad https://zenodo.org/record/3976991 https://doi.org/10.5061/dryad.sc30mr1 oai:zenodo.org:3976991 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.sc30mr1 |
_version_ |
1766309825302495232 |