Data from: Low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large Atlantic salmon population
Despite decades of research assessing the genetic structure of natural populations, the biological meaning of low yet significant genetic divergence often remains unclear due to a lack of associated phenotypic and ecological information. At the same time, structured populations with low genetic dive...
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ftdryad:oai:v1.datadryad.org:10255/dryad.96997 2023-05-15T15:31:35+02:00 Data from: Low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large Atlantic salmon population Aykanat, Tutku Johnston, Susan E. Niemelä, Eero Orell, Panu Erkinaro, Jaakko Primmer, Craig R. Finland Norway 2015-09-10T14:02:03Z http://hdl.handle.net/10255/dryad.96997 https://doi.org/10.5061/dryad.7t4n0 unknown doi:10.5061/dryad.7t4n0/1 doi:10.1111/mec.13383 PMID:26363183 doi:10.5061/dryad.7t4n0 Aykanat T, Johnston SE, Orell P, Niemelä E, Erkinaro J, Primmer CR (2015) Low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large Atlantic salmon population. Molecular Ecology 24(20): 5158–5174. http://hdl.handle.net/10255/dryad.96997 Cryptic population structure life-history variation age at maturity growth SNPs population genetics Article 2015 ftdryad https://doi.org/10.5061/dryad.7t4n0 https://doi.org/10.5061/dryad.7t4n0/1 https://doi.org/10.1111/mec.13383 2020-01-01T15:24:33Z Despite decades of research assessing the genetic structure of natural populations, the biological meaning of low yet significant genetic divergence often remains unclear due to a lack of associated phenotypic and ecological information. At the same time, structured populations with low genetic divergence and overlapping boundaries can potentially provide excellent models to study adaptation and reproductive isolation in cases where high-resolution genetic markers and relevant phenotypic and life history information are available. Here, we combined single nucleotide polymorphism (SNP)-based population inference with extensive phenotypic and life history data to identify potential biological mechanisms driving fine-scale subpopulation differentiation in Atlantic salmon (Salmo salar) from the Teno River, a major salmon river in Europe. Two sympatrically occurring subpopulations had low but significant genetic differentiation (FST = 0.018) and displayed marked differences in the distribution of life history strategies, including variation in juvenile growth rate, age at maturity and size within age classes. Large, late-maturing individuals were virtually absent from one of the two subpopulations, and there were significant differences in juvenile growth rates and size at age after oceanic migration between individuals in the respective subpopulations. Our findings suggest that different evolutionary processes affect each subpopulation and that hybridization and subsequent selection may maintain low genetic differentiation without hindering adaptive divergence. Article in Journal/Newspaper Atlantic salmon Salmo salar Dryad Digital Repository (Duke University) Norway Teno ENVELOPE(25.690,25.690,68.925,68.925) |
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Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Cryptic population structure life-history variation age at maturity growth SNPs population genetics |
spellingShingle |
Cryptic population structure life-history variation age at maturity growth SNPs population genetics Aykanat, Tutku Johnston, Susan E. Niemelä, Eero Orell, Panu Erkinaro, Jaakko Primmer, Craig R. Data from: Low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large Atlantic salmon population |
topic_facet |
Cryptic population structure life-history variation age at maturity growth SNPs population genetics |
description |
Despite decades of research assessing the genetic structure of natural populations, the biological meaning of low yet significant genetic divergence often remains unclear due to a lack of associated phenotypic and ecological information. At the same time, structured populations with low genetic divergence and overlapping boundaries can potentially provide excellent models to study adaptation and reproductive isolation in cases where high-resolution genetic markers and relevant phenotypic and life history information are available. Here, we combined single nucleotide polymorphism (SNP)-based population inference with extensive phenotypic and life history data to identify potential biological mechanisms driving fine-scale subpopulation differentiation in Atlantic salmon (Salmo salar) from the Teno River, a major salmon river in Europe. Two sympatrically occurring subpopulations had low but significant genetic differentiation (FST = 0.018) and displayed marked differences in the distribution of life history strategies, including variation in juvenile growth rate, age at maturity and size within age classes. Large, late-maturing individuals were virtually absent from one of the two subpopulations, and there were significant differences in juvenile growth rates and size at age after oceanic migration between individuals in the respective subpopulations. Our findings suggest that different evolutionary processes affect each subpopulation and that hybridization and subsequent selection may maintain low genetic differentiation without hindering adaptive divergence. |
format |
Article in Journal/Newspaper |
author |
Aykanat, Tutku Johnston, Susan E. Niemelä, Eero Orell, Panu Erkinaro, Jaakko Primmer, Craig R. |
author_facet |
Aykanat, Tutku Johnston, Susan E. Niemelä, Eero Orell, Panu Erkinaro, Jaakko Primmer, Craig R. |
author_sort |
Aykanat, Tutku |
title |
Data from: Low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large Atlantic salmon population |
title_short |
Data from: Low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large Atlantic salmon population |
title_full |
Data from: Low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large Atlantic salmon population |
title_fullStr |
Data from: Low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large Atlantic salmon population |
title_full_unstemmed |
Data from: Low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large Atlantic salmon population |
title_sort |
data from: low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large atlantic salmon population |
publishDate |
2015 |
url |
http://hdl.handle.net/10255/dryad.96997 https://doi.org/10.5061/dryad.7t4n0 |
op_coverage |
Finland Norway |
long_lat |
ENVELOPE(25.690,25.690,68.925,68.925) |
geographic |
Norway Teno |
geographic_facet |
Norway Teno |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
doi:10.5061/dryad.7t4n0/1 doi:10.1111/mec.13383 PMID:26363183 doi:10.5061/dryad.7t4n0 Aykanat T, Johnston SE, Orell P, Niemelä E, Erkinaro J, Primmer CR (2015) Low but significant genetic differentiation underlies biologically meaningful phenotypic divergence in a large Atlantic salmon population. Molecular Ecology 24(20): 5158–5174. http://hdl.handle.net/10255/dryad.96997 |
op_doi |
https://doi.org/10.5061/dryad.7t4n0 https://doi.org/10.5061/dryad.7t4n0/1 https://doi.org/10.1111/mec.13383 |
_version_ |
1766362096929341440 |