Postglacial climate changes and rise of three ecotypes of harbour porpoises, Phocoena phocoena, in western Palearctic waters
Abstract Despite no obvious barriers to gene flow in the marine realm, environmental variation and ecological specializations can lead to genetic differentiation in highly mobile predators. Here, we investigated the genetic structure of the harbour porpoise over the entire species distribution range...
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crwiley:10.1111/mec.12817 2024-09-15T18:10:43+00:00 Postglacial climate changes and rise of three ecotypes of harbour porpoises, Phocoena phocoena, in western Palearctic waters Fontaine, Michaël C. Roland, Kathleen Calves, Isabelle Austerlitz, Frederic Palstra, Friso P. Tolley, Krystal A. Ryan, Sean Ferreira, Marisa Jauniaux, Thierry Llavona, Angela Öztürk, Bayram Öztürk, Ayaka A. Ridoux, Vincent Rogan, Emer Sequeira, Marina Siebert, Ursula Vikingsson, Gísli A. Borrell, Asunción Michaux, Johan R. Aguilar, Alex Fonds De La Recherche Scientifique - FNRS Belgian Science Policy Marie Curie Fellowship program 2014 http://dx.doi.org/10.1111/mec.12817 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.12817 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.12817 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 Molecular Ecology volume 23, issue 13, page 3306-3321 ISSN 0962-1083 1365-294X journal-article 2014 crwiley https://doi.org/10.1111/mec.12817 2024-08-06T04:16:37Z Abstract Despite no obvious barriers to gene flow in the marine realm, environmental variation and ecological specializations can lead to genetic differentiation in highly mobile predators. Here, we investigated the genetic structure of the harbour porpoise over the entire species distribution range in western Palearctic waters. Combined analyses of 10 microsatellite loci and a 5085 base‐pair portion of the mitochondrial genome revealed the existence of three ecotypes, equally divergent at the mitochondrial genome, distributed in the Black Sea ( BS ), the European continental shelf waters, and a previously overlooked ecotype in the upwelling zones of Iberia and Mauritania. Historical demographic inferences using approximate Bayesian computation ( ABC ) suggest that these ecotypes diverged during the last glacial maximum ( c. 23–19 kilo‐years ago, kyr bp ). ABC supports the hypothesis that the BS and upwelling ecotypes share a more recent common ancestor ( c. 14 kyr bp ) than either does with the European continental shelf ecotype ( c. 28 kyr bp ), suggesting they probably descended from the extinct populations that once inhabited the Mediterranean during the glacial and post‐glacial period. We showed that the two Atlantic ecotypes established a narrow admixture zone in the Bay of Biscay during the last millennium, with highly asymmetric gene flow. This study highlights the impacts that climate change may have on the distribution and speciation process in pelagic predators and shows that allopatric divergence can occur in these highly mobile species and be a source of genetic diversity. Article in Journal/Newspaper Harbour porpoise Phocoena phocoena Wiley Online Library Molecular Ecology 23 13 3306 3321 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Despite no obvious barriers to gene flow in the marine realm, environmental variation and ecological specializations can lead to genetic differentiation in highly mobile predators. Here, we investigated the genetic structure of the harbour porpoise over the entire species distribution range in western Palearctic waters. Combined analyses of 10 microsatellite loci and a 5085 base‐pair portion of the mitochondrial genome revealed the existence of three ecotypes, equally divergent at the mitochondrial genome, distributed in the Black Sea ( BS ), the European continental shelf waters, and a previously overlooked ecotype in the upwelling zones of Iberia and Mauritania. Historical demographic inferences using approximate Bayesian computation ( ABC ) suggest that these ecotypes diverged during the last glacial maximum ( c. 23–19 kilo‐years ago, kyr bp ). ABC supports the hypothesis that the BS and upwelling ecotypes share a more recent common ancestor ( c. 14 kyr bp ) than either does with the European continental shelf ecotype ( c. 28 kyr bp ), suggesting they probably descended from the extinct populations that once inhabited the Mediterranean during the glacial and post‐glacial period. We showed that the two Atlantic ecotypes established a narrow admixture zone in the Bay of Biscay during the last millennium, with highly asymmetric gene flow. This study highlights the impacts that climate change may have on the distribution and speciation process in pelagic predators and shows that allopatric divergence can occur in these highly mobile species and be a source of genetic diversity. |
author2 |
Fonds De La Recherche Scientifique - FNRS Belgian Science Policy Marie Curie Fellowship program |
format |
Article in Journal/Newspaper |
author |
Fontaine, Michaël C. Roland, Kathleen Calves, Isabelle Austerlitz, Frederic Palstra, Friso P. Tolley, Krystal A. Ryan, Sean Ferreira, Marisa Jauniaux, Thierry Llavona, Angela Öztürk, Bayram Öztürk, Ayaka A. Ridoux, Vincent Rogan, Emer Sequeira, Marina Siebert, Ursula Vikingsson, Gísli A. Borrell, Asunción Michaux, Johan R. Aguilar, Alex |
spellingShingle |
Fontaine, Michaël C. Roland, Kathleen Calves, Isabelle Austerlitz, Frederic Palstra, Friso P. Tolley, Krystal A. Ryan, Sean Ferreira, Marisa Jauniaux, Thierry Llavona, Angela Öztürk, Bayram Öztürk, Ayaka A. Ridoux, Vincent Rogan, Emer Sequeira, Marina Siebert, Ursula Vikingsson, Gísli A. Borrell, Asunción Michaux, Johan R. Aguilar, Alex Postglacial climate changes and rise of three ecotypes of harbour porpoises, Phocoena phocoena, in western Palearctic waters |
author_facet |
Fontaine, Michaël C. Roland, Kathleen Calves, Isabelle Austerlitz, Frederic Palstra, Friso P. Tolley, Krystal A. Ryan, Sean Ferreira, Marisa Jauniaux, Thierry Llavona, Angela Öztürk, Bayram Öztürk, Ayaka A. Ridoux, Vincent Rogan, Emer Sequeira, Marina Siebert, Ursula Vikingsson, Gísli A. Borrell, Asunción Michaux, Johan R. Aguilar, Alex |
author_sort |
Fontaine, Michaël C. |
title |
Postglacial climate changes and rise of three ecotypes of harbour porpoises, Phocoena phocoena, in western Palearctic waters |
title_short |
Postglacial climate changes and rise of three ecotypes of harbour porpoises, Phocoena phocoena, in western Palearctic waters |
title_full |
Postglacial climate changes and rise of three ecotypes of harbour porpoises, Phocoena phocoena, in western Palearctic waters |
title_fullStr |
Postglacial climate changes and rise of three ecotypes of harbour porpoises, Phocoena phocoena, in western Palearctic waters |
title_full_unstemmed |
Postglacial climate changes and rise of three ecotypes of harbour porpoises, Phocoena phocoena, in western Palearctic waters |
title_sort |
postglacial climate changes and rise of three ecotypes of harbour porpoises, phocoena phocoena, in western palearctic waters |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/mec.12817 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.12817 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.12817 |
genre |
Harbour porpoise Phocoena phocoena |
genre_facet |
Harbour porpoise Phocoena phocoena |
op_source |
Molecular Ecology volume 23, issue 13, page 3306-3321 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 |
op_doi |
https://doi.org/10.1111/mec.12817 |
container_title |
Molecular Ecology |
container_volume |
23 |
container_issue |
13 |
container_start_page |
3306 |
op_container_end_page |
3321 |
_version_ |
1810448302455390208 |