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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ftoslouniv:oai:www.duo.uio.no:10852/59223 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 http://hdl.handle.net/10852/59223 http://urn.nb.no/URN:NBN:no-61921 https://doi.org/10.1038/hdy.2017.54 en eng Berg, Paul R. (2017) Genomic divergence in Atlantic cod populations. Doctoral thesis. http://urn.nb.no/URN:NBN:no-57964 http://urn.nb.no/URN:NBN:no-57964 http://urn.nb.no/URN:NBN:no-61921 http://hdl.handle.net/10852/59223 Heredity 119 418 428 http://dx.doi.org/10.1038/hdy.2017.54 URN:NBN:no-61921 Fulltext https://www.duo.uio.no/bitstream/handle/10852/59223/1/hdy201754.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2017 ftoslouniv https://doi.org/10.1038/hdy.2017.54 2020-06-21T08:51:20Z 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. Article in Journal/Newspaper atlantic cod Gadus morhua Northeast Atlantic Northwest Atlantic Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Heredity 119 6 418 428 |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
language |
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. |
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 |
publishDate |
2017 |
url |
http://hdl.handle.net/10852/59223 http://urn.nb.no/URN:NBN:no-61921 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_relation |
Berg, Paul R. (2017) Genomic divergence in Atlantic cod populations. Doctoral thesis. http://urn.nb.no/URN:NBN:no-57964 http://urn.nb.no/URN:NBN:no-57964 http://urn.nb.no/URN:NBN:no-61921 http://hdl.handle.net/10852/59223 Heredity 119 418 428 http://dx.doi.org/10.1038/hdy.2017.54 URN:NBN:no-61921 Fulltext https://www.duo.uio.no/bitstream/handle/10852/59223/1/hdy201754.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/hdy.2017.54 |
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119 |
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6 |
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418 |
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428 |
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1766357005650362368 |