Data from: Genome-wide SNP analysis reveals a genetic basis for sea-age variation in a wild population of Atlantic salmon (Salmo salar)
Delaying sexual maturation can lead to larger body size and higher reproductive success, but carries an increased risk of death before reproducing. Classical life history theory predicts that trade-offs between reproductive success and survival should lead to the evolution of an optimal strategy in...
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ftdryad:oai:v1.datadryad.org:10255/dryad.65641 2023-05-15T15:31:06+02:00 Data from: Genome-wide SNP analysis reveals a genetic basis for sea-age variation in a wild population of Atlantic salmon (Salmo salar) Johnston, Susan E. Orell, Panu Pritchard, Victoria L. Kent, Matthew P. Lien, Sigbjørn Niemelä, Eero Erkinaro, Jaakko Primmer, Craig Northern Finland Teno River 2014-06-10T13:55:19Z http://hdl.handle.net/10255/dryad.65641 https://doi.org/10.5061/dryad.fr43s unknown doi:10.5061/dryad.fr43s/1 doi:10.1111/mec.12832 PMID:24931807 doi:10.5061/dryad.fr43s Johnston SE, Orell P, Pritchard VL, Kent MP, Lien S, Niemelä E, Erkinaro J, Primmer C (2014) Genome-wide SNP analysis reveals a genetic basis for sea-age variation in a wild population of Atlantic salmon (Salmo salar). Molecular Ecology 23(14): 3452–3468. http://hdl.handle.net/10255/dryad.65641 Ecological Genetics Fish Genomics/Proteomics Life History Evolution Empirical Population Genetics Wildlife Management Article 2014 ftdryad https://doi.org/10.5061/dryad.fr43s https://doi.org/10.5061/dryad.fr43s/1 https://doi.org/10.1111/mec.12832 2020-01-01T15:09:14Z Delaying sexual maturation can lead to larger body size and higher reproductive success, but carries an increased risk of death before reproducing. Classical life history theory predicts that trade-offs between reproductive success and survival should lead to the evolution of an optimal strategy in a given population. However, variation in mating strategies generally persists, and in general, there remains a poor understanding of genetic and physiological mechanisms underlying this variation. One extreme case of this is in the Atlantic salmon (Salmo salar), which can show variation in the age at which they return from their marine migration to spawn (i.e. their “sea age”). This results in large size differences between strategies, with direct implications for individual fitness. Here, we used an Illumina Infinium SNP-array to identify regions of the genome associated with variation in sea age in a large population of Atlantic salmon in Northern Europe, implementing individual-based genome-wide association studies (GWAS) and population-based FST outlier analyses. We identified several regions of the genome which vary in association with phenotype and/or selection between sea ages, with nearby genes having functions related to muscle development, metabolism, immune response and mate choice. In addition, we found that individuals of different sea ages belong to different, yet sympatric populations in this system, indicating that reproductive isolation may be driven by divergence between stable strategies. Overall, this study demonstrates how genome-wide methodologies can be integrated with samples collected from wild, structured populations to understand their ecology and evolution in a natural context. Article in Journal/Newspaper Atlantic salmon Northern Finland Salmo salar Dryad Digital Repository (Duke University) Teno ENVELOPE(25.690,25.690,68.925,68.925) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Ecological Genetics Fish Genomics/Proteomics Life History Evolution Empirical Population Genetics Wildlife Management |
spellingShingle |
Ecological Genetics Fish Genomics/Proteomics Life History Evolution Empirical Population Genetics Wildlife Management Johnston, Susan E. Orell, Panu Pritchard, Victoria L. Kent, Matthew P. Lien, Sigbjørn Niemelä, Eero Erkinaro, Jaakko Primmer, Craig Data from: Genome-wide SNP analysis reveals a genetic basis for sea-age variation in a wild population of Atlantic salmon (Salmo salar) |
topic_facet |
Ecological Genetics Fish Genomics/Proteomics Life History Evolution Empirical Population Genetics Wildlife Management |
description |
Delaying sexual maturation can lead to larger body size and higher reproductive success, but carries an increased risk of death before reproducing. Classical life history theory predicts that trade-offs between reproductive success and survival should lead to the evolution of an optimal strategy in a given population. However, variation in mating strategies generally persists, and in general, there remains a poor understanding of genetic and physiological mechanisms underlying this variation. One extreme case of this is in the Atlantic salmon (Salmo salar), which can show variation in the age at which they return from their marine migration to spawn (i.e. their “sea age”). This results in large size differences between strategies, with direct implications for individual fitness. Here, we used an Illumina Infinium SNP-array to identify regions of the genome associated with variation in sea age in a large population of Atlantic salmon in Northern Europe, implementing individual-based genome-wide association studies (GWAS) and population-based FST outlier analyses. We identified several regions of the genome which vary in association with phenotype and/or selection between sea ages, with nearby genes having functions related to muscle development, metabolism, immune response and mate choice. In addition, we found that individuals of different sea ages belong to different, yet sympatric populations in this system, indicating that reproductive isolation may be driven by divergence between stable strategies. Overall, this study demonstrates how genome-wide methodologies can be integrated with samples collected from wild, structured populations to understand their ecology and evolution in a natural context. |
format |
Article in Journal/Newspaper |
author |
Johnston, Susan E. Orell, Panu Pritchard, Victoria L. Kent, Matthew P. Lien, Sigbjørn Niemelä, Eero Erkinaro, Jaakko Primmer, Craig |
author_facet |
Johnston, Susan E. Orell, Panu Pritchard, Victoria L. Kent, Matthew P. Lien, Sigbjørn Niemelä, Eero Erkinaro, Jaakko Primmer, Craig |
author_sort |
Johnston, Susan E. |
title |
Data from: Genome-wide SNP analysis reveals a genetic basis for sea-age variation in a wild population of Atlantic salmon (Salmo salar) |
title_short |
Data from: Genome-wide SNP analysis reveals a genetic basis for sea-age variation in a wild population of Atlantic salmon (Salmo salar) |
title_full |
Data from: Genome-wide SNP analysis reveals a genetic basis for sea-age variation in a wild population of Atlantic salmon (Salmo salar) |
title_fullStr |
Data from: Genome-wide SNP analysis reveals a genetic basis for sea-age variation in a wild population of Atlantic salmon (Salmo salar) |
title_full_unstemmed |
Data from: Genome-wide SNP analysis reveals a genetic basis for sea-age variation in a wild population of Atlantic salmon (Salmo salar) |
title_sort |
data from: genome-wide snp analysis reveals a genetic basis for sea-age variation in a wild population of atlantic salmon (salmo salar) |
publishDate |
2014 |
url |
http://hdl.handle.net/10255/dryad.65641 https://doi.org/10.5061/dryad.fr43s |
op_coverage |
Northern Finland Teno River |
long_lat |
ENVELOPE(25.690,25.690,68.925,68.925) |
geographic |
Teno |
geographic_facet |
Teno |
genre |
Atlantic salmon Northern Finland Salmo salar |
genre_facet |
Atlantic salmon Northern Finland Salmo salar |
op_relation |
doi:10.5061/dryad.fr43s/1 doi:10.1111/mec.12832 PMID:24931807 doi:10.5061/dryad.fr43s Johnston SE, Orell P, Pritchard VL, Kent MP, Lien S, Niemelä E, Erkinaro J, Primmer C (2014) Genome-wide SNP analysis reveals a genetic basis for sea-age variation in a wild population of Atlantic salmon (Salmo salar). Molecular Ecology 23(14): 3452–3468. http://hdl.handle.net/10255/dryad.65641 |
op_doi |
https://doi.org/10.5061/dryad.fr43s https://doi.org/10.5061/dryad.fr43s/1 https://doi.org/10.1111/mec.12832 |
_version_ |
1766361588648902656 |