Rapid evolution of genetic and phenotypic divergence in Atlantic salmon following the colonisation of two new branches of a watercourse
International audience AbstractBackground Selection acts strongly on individuals that colonise a habitat and have phenotypic traits that deviate from the local optima. Our objective was to investigate the evolutionary rates in Atlantic salmon (Salmo salar) in a river system (the Vefsna watershed in...
Published in: | Genetics Selection Evolution |
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ftccsdartic:oai:HAL:hal-01479151v1 2023-05-15T15:31:16+02:00 Rapid evolution of genetic and phenotypic divergence in Atlantic salmon following the colonisation of two new branches of a watercourse Jensen, Arne Johan Hansen, Lars Petter Johnsen, Bjørn Ove Karlsson, Sten 2017-12 https://hal.archives-ouvertes.fr/hal-01479151 https://hal.archives-ouvertes.fr/hal-01479151/document https://hal.archives-ouvertes.fr/hal-01479151/file/12711_2017_Article_298.pdf https://doi.org/10.1186/s12711-017-0298-1 en eng HAL CCSD BioMed Central info:eu-repo/semantics/altIdentifier/doi/10.1186/s12711-017-0298-1 hal-01479151 https://hal.archives-ouvertes.fr/hal-01479151 https://hal.archives-ouvertes.fr/hal-01479151/document https://hal.archives-ouvertes.fr/hal-01479151/file/12711_2017_Article_298.pdf doi:10.1186/s12711-017-0298-1 info:eu-repo/semantics/OpenAccess ISSN: 0999-193X EISSN: 1297-9686 Genetics Selection Evolution https://hal.archives-ouvertes.fr/hal-01479151 Genetics Selection Evolution, BioMed Central, 2017, 49 (1), pp.22. ⟨10.1186/s12711-017-0298-1⟩ [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.1186/s12711-017-0298-1 2021-02-21T01:23:10Z International audience AbstractBackground Selection acts strongly on individuals that colonise a habitat and have phenotypic traits that deviate from the local optima. Our objective was to investigate the evolutionary rates in Atlantic salmon (Salmo salar) in a river system (the Vefsna watershed in Norway), fewer than 15 generations after colonisation of two new branches of the watercourse for spawning, which were made available by construction of fish ladders in 1889.MethodsDifferences in age and size were analysed using scale samples collected by anglers. Age and size of recaptures from a tagging experiment were compared between the three branches. Furthermore, genetic analyses of scale samples collected in the three river branches during two periods were performed to evaluate whether observed differences evolved by genetic divergence over this short period, or were the result of phenotypic plasticity.ResultsWe demonstrate that evolution can be rapid when fish populations are subjected to strong selection, in spite of sympatry with their ancestral group, no physical barriers to hybridisation, and natal homing as the only reproductive isolating barrier. After fewer than 15 generations, there was evidence of genetic isolation between the two branches based on genetic variation at 96 single nucleotide polymorphism loci, and significant differences in several life history traits, including size and age at maturity. Selection against large size at maturity appears to have occurred, since large individuals were reluctant to ascend the branch with less abundant water. The estimated evolutionary rate of change in life history traits is within the upper 3 to 7% reported in other fish studies on microevolutionary rates.ConclusionsThese findings suggest that with sufficient genetic diversity, Atlantic salmon can rapidly colonise and evolve to new accessible habitats. This has profound implications for conservation and restoration of populations and habitats in order to meet evolutionary challenges, including ... Article in Journal/Newspaper Atlantic salmon Salmo salar Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Norway Vefsna ENVELOPE(13.200,13.200,65.833,65.833) Genetics Selection Evolution 49 1 |
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Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDV]Life Sciences [q-bio] |
spellingShingle |
[SDV]Life Sciences [q-bio] Jensen, Arne Johan Hansen, Lars Petter Johnsen, Bjørn Ove Karlsson, Sten Rapid evolution of genetic and phenotypic divergence in Atlantic salmon following the colonisation of two new branches of a watercourse |
topic_facet |
[SDV]Life Sciences [q-bio] |
description |
International audience AbstractBackground Selection acts strongly on individuals that colonise a habitat and have phenotypic traits that deviate from the local optima. Our objective was to investigate the evolutionary rates in Atlantic salmon (Salmo salar) in a river system (the Vefsna watershed in Norway), fewer than 15 generations after colonisation of two new branches of the watercourse for spawning, which were made available by construction of fish ladders in 1889.MethodsDifferences in age and size were analysed using scale samples collected by anglers. Age and size of recaptures from a tagging experiment were compared between the three branches. Furthermore, genetic analyses of scale samples collected in the three river branches during two periods were performed to evaluate whether observed differences evolved by genetic divergence over this short period, or were the result of phenotypic plasticity.ResultsWe demonstrate that evolution can be rapid when fish populations are subjected to strong selection, in spite of sympatry with their ancestral group, no physical barriers to hybridisation, and natal homing as the only reproductive isolating barrier. After fewer than 15 generations, there was evidence of genetic isolation between the two branches based on genetic variation at 96 single nucleotide polymorphism loci, and significant differences in several life history traits, including size and age at maturity. Selection against large size at maturity appears to have occurred, since large individuals were reluctant to ascend the branch with less abundant water. The estimated evolutionary rate of change in life history traits is within the upper 3 to 7% reported in other fish studies on microevolutionary rates.ConclusionsThese findings suggest that with sufficient genetic diversity, Atlantic salmon can rapidly colonise and evolve to new accessible habitats. This has profound implications for conservation and restoration of populations and habitats in order to meet evolutionary challenges, including ... |
format |
Article in Journal/Newspaper |
author |
Jensen, Arne Johan Hansen, Lars Petter Johnsen, Bjørn Ove Karlsson, Sten |
author_facet |
Jensen, Arne Johan Hansen, Lars Petter Johnsen, Bjørn Ove Karlsson, Sten |
author_sort |
Jensen, Arne Johan |
title |
Rapid evolution of genetic and phenotypic divergence in Atlantic salmon following the colonisation of two new branches of a watercourse |
title_short |
Rapid evolution of genetic and phenotypic divergence in Atlantic salmon following the colonisation of two new branches of a watercourse |
title_full |
Rapid evolution of genetic and phenotypic divergence in Atlantic salmon following the colonisation of two new branches of a watercourse |
title_fullStr |
Rapid evolution of genetic and phenotypic divergence in Atlantic salmon following the colonisation of two new branches of a watercourse |
title_full_unstemmed |
Rapid evolution of genetic and phenotypic divergence in Atlantic salmon following the colonisation of two new branches of a watercourse |
title_sort |
rapid evolution of genetic and phenotypic divergence in atlantic salmon following the colonisation of two new branches of a watercourse |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-01479151 https://hal.archives-ouvertes.fr/hal-01479151/document https://hal.archives-ouvertes.fr/hal-01479151/file/12711_2017_Article_298.pdf https://doi.org/10.1186/s12711-017-0298-1 |
long_lat |
ENVELOPE(13.200,13.200,65.833,65.833) |
geographic |
Norway Vefsna |
geographic_facet |
Norway Vefsna |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
ISSN: 0999-193X EISSN: 1297-9686 Genetics Selection Evolution https://hal.archives-ouvertes.fr/hal-01479151 Genetics Selection Evolution, BioMed Central, 2017, 49 (1), pp.22. ⟨10.1186/s12711-017-0298-1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1186/s12711-017-0298-1 hal-01479151 https://hal.archives-ouvertes.fr/hal-01479151 https://hal.archives-ouvertes.fr/hal-01479151/document https://hal.archives-ouvertes.fr/hal-01479151/file/12711_2017_Article_298.pdf doi:10.1186/s12711-017-0298-1 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1186/s12711-017-0298-1 |
container_title |
Genetics Selection Evolution |
container_volume |
49 |
container_issue |
1 |
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1766361761894629376 |