Geographic extent of introgression in Sebastes mentella and its effect on genetic population structure
Genetic population structure is often used to identify management units in exploited species, but the extent of genetic differentiation may be inflated by geographic variation in the level of hybridization between species. We identify the genetic population structure of Sebastes mentella and investi...
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ftpubmed:oai:pubmedcentral.nih.gov:5192944 2023-05-15T15:05:57+02:00 Geographic extent of introgression in Sebastes mentella and its effect on genetic population structure Saha, Atal Johansen, Torild Hedeholm, Rasmus Nielsen, Einar E. Westgaard, Jon‐Ivar Hauser, Lorenz Planque, Benjamin Cadrin, Steven X. Boje, Jesper 2016-10-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5192944/ https://doi.org/10.1111/eva.12429 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5192944/ http://dx.doi.org/10.1111/eva.12429 © 2016 The Authors. Evolutionary Applications published by John Wiley & Sons Ltd This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Original Articles Text 2016 ftpubmed https://doi.org/10.1111/eva.12429 2017-01-01T01:08:54Z Genetic population structure is often used to identify management units in exploited species, but the extent of genetic differentiation may be inflated by geographic variation in the level of hybridization between species. We identify the genetic population structure of Sebastes mentella and investigate possible introgression within the genus by analyzing 13 microsatellites in 2,562 redfish specimens sampled throughout the North Atlantic. The data support an historical divergence between the “shallow” and “deep” groups, beyond the Irminger Sea where they were described previously. A third group, “slope,” has an extended distribution on the East Greenland Shelf, in addition to earlier findings on the Icelandic slope. Furthermore, S. mentella from the Northeast Arctic and Northwest Atlantic waters are genetically different populations. In both areas, interspecific introgression may influence allele frequency differences among populations. Evidence of introgression was found for almost all the identified Sebastes gene pools, but to a much lower extent than suggested earlier. Greenland waters appear to be a sympatric zone for many of the genetically independent Sebastes groups. This study illustrates that the identified groups maintain their genetic integrity in this region despite introgression. Text Arctic East Greenland Greenland North Atlantic Northwest Atlantic Sebastes mentella PubMed Central (PMC) Arctic Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Evolutionary Applications 10 1 77 90 |
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Original Articles |
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Original Articles Saha, Atal Johansen, Torild Hedeholm, Rasmus Nielsen, Einar E. Westgaard, Jon‐Ivar Hauser, Lorenz Planque, Benjamin Cadrin, Steven X. Boje, Jesper Geographic extent of introgression in Sebastes mentella and its effect on genetic population structure |
topic_facet |
Original Articles |
description |
Genetic population structure is often used to identify management units in exploited species, but the extent of genetic differentiation may be inflated by geographic variation in the level of hybridization between species. We identify the genetic population structure of Sebastes mentella and investigate possible introgression within the genus by analyzing 13 microsatellites in 2,562 redfish specimens sampled throughout the North Atlantic. The data support an historical divergence between the “shallow” and “deep” groups, beyond the Irminger Sea where they were described previously. A third group, “slope,” has an extended distribution on the East Greenland Shelf, in addition to earlier findings on the Icelandic slope. Furthermore, S. mentella from the Northeast Arctic and Northwest Atlantic waters are genetically different populations. In both areas, interspecific introgression may influence allele frequency differences among populations. Evidence of introgression was found for almost all the identified Sebastes gene pools, but to a much lower extent than suggested earlier. Greenland waters appear to be a sympatric zone for many of the genetically independent Sebastes groups. This study illustrates that the identified groups maintain their genetic integrity in this region despite introgression. |
format |
Text |
author |
Saha, Atal Johansen, Torild Hedeholm, Rasmus Nielsen, Einar E. Westgaard, Jon‐Ivar Hauser, Lorenz Planque, Benjamin Cadrin, Steven X. Boje, Jesper |
author_facet |
Saha, Atal Johansen, Torild Hedeholm, Rasmus Nielsen, Einar E. Westgaard, Jon‐Ivar Hauser, Lorenz Planque, Benjamin Cadrin, Steven X. Boje, Jesper |
author_sort |
Saha, Atal |
title |
Geographic extent of introgression in Sebastes mentella and its effect on genetic population structure |
title_short |
Geographic extent of introgression in Sebastes mentella and its effect on genetic population structure |
title_full |
Geographic extent of introgression in Sebastes mentella and its effect on genetic population structure |
title_fullStr |
Geographic extent of introgression in Sebastes mentella and its effect on genetic population structure |
title_full_unstemmed |
Geographic extent of introgression in Sebastes mentella and its effect on genetic population structure |
title_sort |
geographic extent of introgression in sebastes mentella and its effect on genetic population structure |
publisher |
John Wiley and Sons Inc. |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5192944/ https://doi.org/10.1111/eva.12429 |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Arctic Greenland Irminger Sea |
geographic_facet |
Arctic Greenland Irminger Sea |
genre |
Arctic East Greenland Greenland North Atlantic Northwest Atlantic Sebastes mentella |
genre_facet |
Arctic East Greenland Greenland North Atlantic Northwest Atlantic Sebastes mentella |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5192944/ http://dx.doi.org/10.1111/eva.12429 |
op_rights |
© 2016 The Authors. Evolutionary Applications published by John Wiley & Sons Ltd This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/eva.12429 |
container_title |
Evolutionary Applications |
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10 |
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1 |
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77 |
op_container_end_page |
90 |
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1766337628023554048 |