Trans-oceanic genomic divergence of Atlantic cod ecotypes is associated with large inversions
Chromosomal rearrangements such as inversions can play a crucial role in maintaining polymorphism underlying complex traits and contribute to the process of speciation. In Atlantic cod (Gadus morhua), inversions of several megabases have been identified that dominate genomic differentiation between...
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ftagderuniv:oai:uia.brage.unit.no:11250/2482910 2023-05-15T15:26:31+02:00 Trans-oceanic genomic divergence of Atlantic cod ecotypes is associated with large inversions Berg, Paul Ragnar Star, Bastiaan Pampoulie, Christophe Bradbury, Ian R. Bentzen, Paul Hutchings, Jeffrey Jentoft, Sissel Jakobsen, Kjetill Sigurd 2017 application/pdf http://hdl.handle.net/11250/2482910 https://doi.org/10.1038/hdy.2017.54 eng eng Nature-Springer Norges forskningsråd: 179569 Heredity. 2017, 1-11. urn:issn:0018-067X http://hdl.handle.net/11250/2482910 https://doi.org/10.1038/hdy.2017.54 cristin:1516467 Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no CC-BY-NC-ND 1-11 Heredity Journal article Peer reviewed 2017 ftagderuniv https://doi.org/10.1038/hdy.2017.54 2022-12-11T06:51:09Z Chromosomal rearrangements such as inversions can play a crucial role in maintaining polymorphism underlying complex traits and contribute to the process of speciation. In Atlantic cod (Gadus morhua), inversions of several megabases have been identified that dominate genomic differentiation between migratory and nonmigratory ecotypes in the Northeast Atlantic. Here, we show that the same genomic regions display elevated divergence and contribute to ecotype divergence in the Northwest Atlantic as well. The occurrence of these inversions on both sides of the Atlantic Ocean reveals a common evolutionary origin, predating the >100 000-year-old trans-Atlantic separation of Atlantic cod. The long-term persistence of these inversions indicates that they are maintained by selection, possibly facilitated by coevolution of genes underlying complex traits. Our data suggest that migratory behaviour is derived from more stationary, ancestral ecotypes. Overall, we identify several large genomic regions—each containing hundreds of genes—likely involved in the maintenance of genomic divergence in Atlantic cod on both sides of the Atlantic Ocean. publishedVersion nivå1 Article in Journal/Newspaper atlantic cod Gadus morhua Northeast Atlantic Northwest Atlantic Unvieristy of Agder: AURA (Brage) Heredity 119 6 418 428 |
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Unvieristy of Agder: AURA (Brage) |
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English |
description |
Chromosomal rearrangements such as inversions can play a crucial role in maintaining polymorphism underlying complex traits and contribute to the process of speciation. In Atlantic cod (Gadus morhua), inversions of several megabases have been identified that dominate genomic differentiation between migratory and nonmigratory ecotypes in the Northeast Atlantic. Here, we show that the same genomic regions display elevated divergence and contribute to ecotype divergence in the Northwest Atlantic as well. The occurrence of these inversions on both sides of the Atlantic Ocean reveals a common evolutionary origin, predating the >100 000-year-old trans-Atlantic separation of Atlantic cod. The long-term persistence of these inversions indicates that they are maintained by selection, possibly facilitated by coevolution of genes underlying complex traits. Our data suggest that migratory behaviour is derived from more stationary, ancestral ecotypes. Overall, we identify several large genomic regions—each containing hundreds of genes—likely involved in the maintenance of genomic divergence in Atlantic cod on both sides of the Atlantic Ocean. publishedVersion nivå1 |
format |
Article in Journal/Newspaper |
author |
Berg, Paul Ragnar Star, Bastiaan Pampoulie, Christophe Bradbury, Ian R. Bentzen, Paul Hutchings, Jeffrey Jentoft, Sissel Jakobsen, Kjetill Sigurd |
spellingShingle |
Berg, Paul Ragnar Star, Bastiaan Pampoulie, Christophe Bradbury, Ian R. Bentzen, Paul Hutchings, Jeffrey Jentoft, Sissel Jakobsen, Kjetill Sigurd Trans-oceanic genomic divergence of Atlantic cod ecotypes is associated with large inversions |
author_facet |
Berg, Paul Ragnar Star, Bastiaan Pampoulie, Christophe Bradbury, Ian R. Bentzen, Paul Hutchings, Jeffrey Jentoft, Sissel Jakobsen, Kjetill Sigurd |
author_sort |
Berg, Paul Ragnar |
title |
Trans-oceanic genomic divergence of Atlantic cod ecotypes is associated with large inversions |
title_short |
Trans-oceanic genomic divergence of Atlantic cod ecotypes is associated with large inversions |
title_full |
Trans-oceanic genomic divergence of Atlantic cod ecotypes is associated with large inversions |
title_fullStr |
Trans-oceanic genomic divergence of Atlantic cod ecotypes is associated with large inversions |
title_full_unstemmed |
Trans-oceanic genomic divergence of Atlantic cod ecotypes is associated with large inversions |
title_sort |
trans-oceanic genomic divergence of atlantic cod ecotypes is associated with large inversions |
publisher |
Nature-Springer |
publishDate |
2017 |
url |
http://hdl.handle.net/11250/2482910 https://doi.org/10.1038/hdy.2017.54 |
genre |
atlantic cod Gadus morhua Northeast Atlantic Northwest Atlantic |
genre_facet |
atlantic cod Gadus morhua Northeast Atlantic Northwest Atlantic |
op_source |
1-11 Heredity |
op_relation |
Norges forskningsråd: 179569 Heredity. 2017, 1-11. urn:issn:0018-067X http://hdl.handle.net/11250/2482910 https://doi.org/10.1038/hdy.2017.54 cristin:1516467 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1038/hdy.2017.54 |
container_title |
Heredity |
container_volume |
119 |
container_issue |
6 |
container_start_page |
418 |
op_container_end_page |
428 |
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1766357004381585408 |