Large-effect loci mediate rapid adaptation of salmon body size after river regulation
Understanding the potential of natural populations to adapt to altered environments is becoming increasingly relevant in evolutionary research. Currently, our understanding of adaptation to human alteration of the environment is hampered by lack of knowledge on the genetic basis of traits, lack of t...
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Online Access: | https://hdl.handle.net/11250/3031352 https://doi.org/10.1073/pnas.2207634119 |
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ftimr:oai:imr.brage.unit.no:11250/3031352 2023-05-15T15:32:19+02:00 Large-effect loci mediate rapid adaptation of salmon body size after river regulation Jensen, Arne Johan Hagen, Ingerid Julie Czorlich, Yann Bolstad, Geir Hysing Bremset, Gunnbjørn Finstad, Bengt Hindar, Kjetil Skaala, Øystein Karlsson, Sten 2022 application/pdf https://hdl.handle.net/11250/3031352 https://doi.org/10.1073/pnas.2207634119 eng eng Egen institusjon: Norwegian institute for nature research (NINA) Norges forskningsråd: 275862 Andre: Statkraft AS Norges forskningsråd: 280308 urn:issn:0027-8424 https://hdl.handle.net/11250/3031352 https://doi.org/10.1073/pnas.2207634119 cristin:2069061 119 Proceedings of the National Academy of Sciences of the United States of America 44 VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Peer reviewed Journal article 2022 ftimr https://doi.org/10.1073/pnas.2207634119 2022-11-16T23:42:40Z Understanding the potential of natural populations to adapt to altered environments is becoming increasingly relevant in evolutionary research. Currently, our understanding of adaptation to human alteration of the environment is hampered by lack of knowledge on the genetic basis of traits, lack of time series, and little or no information on changes in optimal trait values. Here, we used time series data spanning nearly a century to investigate how the body mass of Atlantic salmon (Salmo salar) adapts to river regulation. We found that the change in body mass followed the change in waterflow, both decreasing to ∼1/3 of their original values. Allele frequency changes at two loci in the regions of vgll3 and six6 predicted more than 80% of the observed body mass reduction. Modeling the adaptive dynamics revealed that the population mean lagged behind its optimum before catching up approximately six salmon generations after the initial waterflow reduction. Our results demonstrate rapid adaptation mediated by large-effect loci and provide insight into the temporal dynamics of evolutionary rescue following human disturbance. publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar Institute for Marine Research: Brage IMR Proceedings of the National Academy of Sciences 119 44 |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
topic |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Jensen, Arne Johan Hagen, Ingerid Julie Czorlich, Yann Bolstad, Geir Hysing Bremset, Gunnbjørn Finstad, Bengt Hindar, Kjetil Skaala, Øystein Karlsson, Sten Large-effect loci mediate rapid adaptation of salmon body size after river regulation |
topic_facet |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
Understanding the potential of natural populations to adapt to altered environments is becoming increasingly relevant in evolutionary research. Currently, our understanding of adaptation to human alteration of the environment is hampered by lack of knowledge on the genetic basis of traits, lack of time series, and little or no information on changes in optimal trait values. Here, we used time series data spanning nearly a century to investigate how the body mass of Atlantic salmon (Salmo salar) adapts to river regulation. We found that the change in body mass followed the change in waterflow, both decreasing to ∼1/3 of their original values. Allele frequency changes at two loci in the regions of vgll3 and six6 predicted more than 80% of the observed body mass reduction. Modeling the adaptive dynamics revealed that the population mean lagged behind its optimum before catching up approximately six salmon generations after the initial waterflow reduction. Our results demonstrate rapid adaptation mediated by large-effect loci and provide insight into the temporal dynamics of evolutionary rescue following human disturbance. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Jensen, Arne Johan Hagen, Ingerid Julie Czorlich, Yann Bolstad, Geir Hysing Bremset, Gunnbjørn Finstad, Bengt Hindar, Kjetil Skaala, Øystein Karlsson, Sten |
author_facet |
Jensen, Arne Johan Hagen, Ingerid Julie Czorlich, Yann Bolstad, Geir Hysing Bremset, Gunnbjørn Finstad, Bengt Hindar, Kjetil Skaala, Øystein Karlsson, Sten |
author_sort |
Jensen, Arne Johan |
title |
Large-effect loci mediate rapid adaptation of salmon body size after river regulation |
title_short |
Large-effect loci mediate rapid adaptation of salmon body size after river regulation |
title_full |
Large-effect loci mediate rapid adaptation of salmon body size after river regulation |
title_fullStr |
Large-effect loci mediate rapid adaptation of salmon body size after river regulation |
title_full_unstemmed |
Large-effect loci mediate rapid adaptation of salmon body size after river regulation |
title_sort |
large-effect loci mediate rapid adaptation of salmon body size after river regulation |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3031352 https://doi.org/10.1073/pnas.2207634119 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
119 Proceedings of the National Academy of Sciences of the United States of America 44 |
op_relation |
Egen institusjon: Norwegian institute for nature research (NINA) Norges forskningsråd: 275862 Andre: Statkraft AS Norges forskningsråd: 280308 urn:issn:0027-8424 https://hdl.handle.net/11250/3031352 https://doi.org/10.1073/pnas.2207634119 cristin:2069061 |
op_doi |
https://doi.org/10.1073/pnas.2207634119 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
119 |
container_issue |
44 |
_version_ |
1766362826385915904 |