Genomic stability through time despite decades of exploitation in cod on both sides of the Atlantic
The mode and extent of rapid evolution and genomic change in response to human harvesting are key conservation issues. Although experiments and models have shown a high potential for both genetic and phenotypic change in response to fishing, empirical examples of genetic responses in wild population...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8054022/ http://www.ncbi.nlm.nih.gov/pubmed/33827928 https://doi.org/10.1073/pnas.2025453118 |
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ftpubmed:oai:pubmedcentral.nih.gov:8054022 2023-05-15T15:05:09+02:00 Genomic stability through time despite decades of exploitation in cod on both sides of the Atlantic Pinsky, Malin L. Eikeset, Anne Maria Helmerson, Cecilia Bradbury, Ian R. Bentzen, Paul Morris, Corey Gondek-Wyrozemska, Agata T. Baalsrud, Helle Tessand Brieuc, Marine Servane Ono Kjesbu, Olav Sigurd Godiksen, Jane A. Barth, Julia M. I. Matschiner, Michael Stenseth, Nils Chr. Jakobsen, Kjetill S. Jentoft, Sissel Star, Bastiaan 2021-04-13 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8054022/ http://www.ncbi.nlm.nih.gov/pubmed/33827928 https://doi.org/10.1073/pnas.2025453118 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8054022/ http://www.ncbi.nlm.nih.gov/pubmed/33827928 http://dx.doi.org/10.1073/pnas.2025453118 Copyright © 2021 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . CC-BY-NC-ND Proc Natl Acad Sci U S A Biological Sciences Text 2021 ftpubmed https://doi.org/10.1073/pnas.2025453118 2021-05-09T00:26:34Z The mode and extent of rapid evolution and genomic change in response to human harvesting are key conservation issues. Although experiments and models have shown a high potential for both genetic and phenotypic change in response to fishing, empirical examples of genetic responses in wild populations are rare. Here, we compare whole-genome sequence data of Atlantic cod (Gadus morhua) that were collected before (early 20th century) and after (early 21st century) periods of intensive exploitation and rapid decline in the age of maturation from two geographically distinct populations in Newfoundland, Canada, and the northeast Arctic, Norway. Our temporal, genome-wide analyses of 346,290 loci show no substantial loss of genetic diversity and high effective population sizes. Moreover, we do not find distinct signals of strong selective sweeps anywhere in the genome, although we cannot rule out the possibility of highly polygenic evolution. Our observations suggest that phenotypic change in these populations is not constrained by irreversible loss of genomic variation and thus imply that former traits could be reestablished with demographic recovery. Text Arctic atlantic cod Gadus morhua Newfoundland PubMed Central (PMC) Arctic Canada Norway Proceedings of the National Academy of Sciences 118 15 e2025453118 |
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PubMed Central (PMC) |
op_collection_id |
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language |
English |
topic |
Biological Sciences |
spellingShingle |
Biological Sciences Pinsky, Malin L. Eikeset, Anne Maria Helmerson, Cecilia Bradbury, Ian R. Bentzen, Paul Morris, Corey Gondek-Wyrozemska, Agata T. Baalsrud, Helle Tessand Brieuc, Marine Servane Ono Kjesbu, Olav Sigurd Godiksen, Jane A. Barth, Julia M. I. Matschiner, Michael Stenseth, Nils Chr. Jakobsen, Kjetill S. Jentoft, Sissel Star, Bastiaan Genomic stability through time despite decades of exploitation in cod on both sides of the Atlantic |
topic_facet |
Biological Sciences |
description |
The mode and extent of rapid evolution and genomic change in response to human harvesting are key conservation issues. Although experiments and models have shown a high potential for both genetic and phenotypic change in response to fishing, empirical examples of genetic responses in wild populations are rare. Here, we compare whole-genome sequence data of Atlantic cod (Gadus morhua) that were collected before (early 20th century) and after (early 21st century) periods of intensive exploitation and rapid decline in the age of maturation from two geographically distinct populations in Newfoundland, Canada, and the northeast Arctic, Norway. Our temporal, genome-wide analyses of 346,290 loci show no substantial loss of genetic diversity and high effective population sizes. Moreover, we do not find distinct signals of strong selective sweeps anywhere in the genome, although we cannot rule out the possibility of highly polygenic evolution. Our observations suggest that phenotypic change in these populations is not constrained by irreversible loss of genomic variation and thus imply that former traits could be reestablished with demographic recovery. |
format |
Text |
author |
Pinsky, Malin L. Eikeset, Anne Maria Helmerson, Cecilia Bradbury, Ian R. Bentzen, Paul Morris, Corey Gondek-Wyrozemska, Agata T. Baalsrud, Helle Tessand Brieuc, Marine Servane Ono Kjesbu, Olav Sigurd Godiksen, Jane A. Barth, Julia M. I. Matschiner, Michael Stenseth, Nils Chr. Jakobsen, Kjetill S. Jentoft, Sissel Star, Bastiaan |
author_facet |
Pinsky, Malin L. Eikeset, Anne Maria Helmerson, Cecilia Bradbury, Ian R. Bentzen, Paul Morris, Corey Gondek-Wyrozemska, Agata T. Baalsrud, Helle Tessand Brieuc, Marine Servane Ono Kjesbu, Olav Sigurd Godiksen, Jane A. Barth, Julia M. I. Matschiner, Michael Stenseth, Nils Chr. Jakobsen, Kjetill S. Jentoft, Sissel Star, Bastiaan |
author_sort |
Pinsky, Malin L. |
title |
Genomic stability through time despite decades of exploitation in cod on both sides of the Atlantic |
title_short |
Genomic stability through time despite decades of exploitation in cod on both sides of the Atlantic |
title_full |
Genomic stability through time despite decades of exploitation in cod on both sides of the Atlantic |
title_fullStr |
Genomic stability through time despite decades of exploitation in cod on both sides of the Atlantic |
title_full_unstemmed |
Genomic stability through time despite decades of exploitation in cod on both sides of the Atlantic |
title_sort |
genomic stability through time despite decades of exploitation in cod on both sides of the atlantic |
publisher |
National Academy of Sciences |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8054022/ http://www.ncbi.nlm.nih.gov/pubmed/33827928 https://doi.org/10.1073/pnas.2025453118 |
geographic |
Arctic Canada Norway |
geographic_facet |
Arctic Canada Norway |
genre |
Arctic atlantic cod Gadus morhua Newfoundland |
genre_facet |
Arctic atlantic cod Gadus morhua Newfoundland |
op_source |
Proc Natl Acad Sci U S A |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8054022/ http://www.ncbi.nlm.nih.gov/pubmed/33827928 http://dx.doi.org/10.1073/pnas.2025453118 |
op_rights |
Copyright © 2021 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1073/pnas.2025453118 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
118 |
container_issue |
15 |
container_start_page |
e2025453118 |
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1766336898634088448 |