Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe.
Understanding the biological processes involved in genetic differentiation and divergence between populations within species is a pivotal aim in evolutionary biology. One particular phenomenon that requires clarification is the maintenance of genetic barriers despite the high potential for gene flow...
Published in: | Molecular Ecology |
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2019
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Online Access: | http://hdl.handle.net/10852/75027 http://urn.nb.no/URN:NBN:no-78135 https://doi.org/10.1111/mec.15310 |
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ftoslouniv:oai:www.duo.uio.no:10852/75027 2023-05-15T17:41:33+02:00 Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe. Mattingsdal, Morten Jorde, Per Erik Knutsen, Halvor Jentoft, Sissel Stenseth, Nils Christian Sodeland, Marte Robalo, Joana I. Hansen, Michael M. André, Carl Gonzalez, Enrique Blanco 2019-11-25T10:16:44Z http://hdl.handle.net/10852/75027 http://urn.nb.no/URN:NBN:no-78135 https://doi.org/10.1111/mec.15310 EN eng NFR/280453 NFR/234328 UIA/UiA- CCR http://urn.nb.no/URN:NBN:no-78135 Mattingsdal, Morten Jorde, Per Erik Knutsen, Halvor Jentoft, Sissel Stenseth, Nils Christian Sodeland, Marte Robalo, Joana I. Hansen, Michael M. André, Carl Gonzalez, Enrique Blanco . Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe. Molecular Ecology. 2019 http://hdl.handle.net/10852/75027 1751695 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Molecular Ecology&rft.volume=&rft.spage=&rft.date=2019 Molecular Ecology 29 1 160 171 32 https://doi.org/10.1111/mec.15310 URN:NBN:no-78135 Fulltext https://www.duo.uio.no/bitstream/handle/10852/75027/4/mec.15310-1.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 0962-1083 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2019 ftoslouniv https://doi.org/10.1111/mec.15310 2020-06-21T08:54:13Z Understanding the biological processes involved in genetic differentiation and divergence between populations within species is a pivotal aim in evolutionary biology. One particular phenomenon that requires clarification is the maintenance of genetic barriers despite the high potential for gene flow in the marine environment. Such patterns have been attributed to limited dispersal or local adaptation, and to a lesser extent to the demographic history of the species. The corkwing wrasse (Symphodus melops) is an example of a marine fish species where regions of particular strong divergence are observed. One such genetic break occurred at a surprisingly small spatial scale (FST ~0.1), over a short coastline (<60 km) in the North Sea‐Skagerrak transition area in southwestern Norway. Here, we investigate the observed divergence and purported reproductive isolation using genome resequencing. Our results suggest that historical events during the post‐glacial recolonization route can explain the present population structure of the corkwing wrasse in the northeast Atlantic. While the divergence across the break is strong, we detected ongoing gene flow between populations over the break suggesting recent contact or negative selection against hybrids. Moreover, we found few outlier loci and no clear genomic regions potentially being under selection. We concluded that neutral processes and random genetic drift e.g., due to founder events during colonization have shaped the population structure in this species in Northern Europe. Our findings underline the need to take into account the demographic process in studies of divergence processes. Article in Journal/Newspaper Northeast Atlantic Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Norway Molecular Ecology 29 1 160 171 |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
language |
English |
description |
Understanding the biological processes involved in genetic differentiation and divergence between populations within species is a pivotal aim in evolutionary biology. One particular phenomenon that requires clarification is the maintenance of genetic barriers despite the high potential for gene flow in the marine environment. Such patterns have been attributed to limited dispersal or local adaptation, and to a lesser extent to the demographic history of the species. The corkwing wrasse (Symphodus melops) is an example of a marine fish species where regions of particular strong divergence are observed. One such genetic break occurred at a surprisingly small spatial scale (FST ~0.1), over a short coastline (<60 km) in the North Sea‐Skagerrak transition area in southwestern Norway. Here, we investigate the observed divergence and purported reproductive isolation using genome resequencing. Our results suggest that historical events during the post‐glacial recolonization route can explain the present population structure of the corkwing wrasse in the northeast Atlantic. While the divergence across the break is strong, we detected ongoing gene flow between populations over the break suggesting recent contact or negative selection against hybrids. Moreover, we found few outlier loci and no clear genomic regions potentially being under selection. We concluded that neutral processes and random genetic drift e.g., due to founder events during colonization have shaped the population structure in this species in Northern Europe. Our findings underline the need to take into account the demographic process in studies of divergence processes. |
format |
Article in Journal/Newspaper |
author |
Mattingsdal, Morten Jorde, Per Erik Knutsen, Halvor Jentoft, Sissel Stenseth, Nils Christian Sodeland, Marte Robalo, Joana I. Hansen, Michael M. André, Carl Gonzalez, Enrique Blanco |
spellingShingle |
Mattingsdal, Morten Jorde, Per Erik Knutsen, Halvor Jentoft, Sissel Stenseth, Nils Christian Sodeland, Marte Robalo, Joana I. Hansen, Michael M. André, Carl Gonzalez, Enrique Blanco Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe. |
author_facet |
Mattingsdal, Morten Jorde, Per Erik Knutsen, Halvor Jentoft, Sissel Stenseth, Nils Christian Sodeland, Marte Robalo, Joana I. Hansen, Michael M. André, Carl Gonzalez, Enrique Blanco |
author_sort |
Mattingsdal, Morten |
title |
Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe. |
title_short |
Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe. |
title_full |
Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe. |
title_fullStr |
Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe. |
title_full_unstemmed |
Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe. |
title_sort |
demographic history has shaped the strongly differentiated corkwing wrasse populations in northern europe. |
publishDate |
2019 |
url |
http://hdl.handle.net/10852/75027 http://urn.nb.no/URN:NBN:no-78135 https://doi.org/10.1111/mec.15310 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
0962-1083 |
op_relation |
NFR/280453 NFR/234328 UIA/UiA- CCR http://urn.nb.no/URN:NBN:no-78135 Mattingsdal, Morten Jorde, Per Erik Knutsen, Halvor Jentoft, Sissel Stenseth, Nils Christian Sodeland, Marte Robalo, Joana I. Hansen, Michael M. André, Carl Gonzalez, Enrique Blanco . Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe. Molecular Ecology. 2019 http://hdl.handle.net/10852/75027 1751695 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Molecular Ecology&rft.volume=&rft.spage=&rft.date=2019 Molecular Ecology 29 1 160 171 32 https://doi.org/10.1111/mec.15310 URN:NBN:no-78135 Fulltext https://www.duo.uio.no/bitstream/handle/10852/75027/4/mec.15310-1.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/mec.15310 |
container_title |
Molecular Ecology |
container_volume |
29 |
container_issue |
1 |
container_start_page |
160 |
op_container_end_page |
171 |
_version_ |
1766143172913659904 |