Mixing of porpoise ecotypes in southwestern UK waters revealed by genetic profiling
Contact zones between ecotypes are windows for understanding how species may react to climate changes. Here, we analysed the fine-scale genetic and morphological variation in harbour porpoises ( Phocoena phocoena ) around the UK by genotyping 591 stranded animals at nine microsatellite loci. The dat...
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crroyalsociety:10.1098/rsos.160992 2024-06-02T08:13:15+00:00 Mixing of porpoise ecotypes in southwestern UK waters revealed by genetic profiling Fontaine, Michaël C. Thatcher, Oliver Ray, Nicolas Piry, Sylvain Brownlow, Andrew Davison, Nicholas J. Jepson, Paul Deaville, Rob Goodman, Simon J. Marie-Curie Fellowship - AGAPE program Natural Environment Research Council (NERC) PhD studentship 2017 http://dx.doi.org/10.1098/rsos.160992 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.160992 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.160992 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Royal Society Open Science volume 4, issue 3, page 160992 ISSN 2054-5703 journal-article 2017 crroyalsociety https://doi.org/10.1098/rsos.160992 2024-05-07T14:16:30Z Contact zones between ecotypes are windows for understanding how species may react to climate changes. Here, we analysed the fine-scale genetic and morphological variation in harbour porpoises ( Phocoena phocoena ) around the UK by genotyping 591 stranded animals at nine microsatellite loci. The data were integrated with a prior study to map at high resolution the contact zone between two previously identified ecotypes meeting in the northern Bay of Biscay. Clustering and spatial analyses revealed that UK porpoises are derived from two genetic pools with porpoises from the southwestern UK being genetically differentiated, and having larger body sizes compared to those of other UK areas. Southwestern UK porpoises showed admixed ancestry between southern and northern ecotypes with a contact zone extending from the northern Bay of Biscay to the Celtic Sea and Channel. Around the UK, ancestry blends from one genetic group to the other along a southwest--northeast axis, correlating with body size variation, consistent with previously reported morphological differences between the two ecotypes. We also detected isolation by distance among juveniles but not in adults, suggesting that stranded juveniles display reduced intergenerational dispersal. The fine-scale structure of this admixture zone raises the question of how it will respond to future climate change and provides a reference point for further study. Article in Journal/Newspaper Phocoena phocoena The Royal Society Royal Society Open Science 4 3 160992 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Contact zones between ecotypes are windows for understanding how species may react to climate changes. Here, we analysed the fine-scale genetic and morphological variation in harbour porpoises ( Phocoena phocoena ) around the UK by genotyping 591 stranded animals at nine microsatellite loci. The data were integrated with a prior study to map at high resolution the contact zone between two previously identified ecotypes meeting in the northern Bay of Biscay. Clustering and spatial analyses revealed that UK porpoises are derived from two genetic pools with porpoises from the southwestern UK being genetically differentiated, and having larger body sizes compared to those of other UK areas. Southwestern UK porpoises showed admixed ancestry between southern and northern ecotypes with a contact zone extending from the northern Bay of Biscay to the Celtic Sea and Channel. Around the UK, ancestry blends from one genetic group to the other along a southwest--northeast axis, correlating with body size variation, consistent with previously reported morphological differences between the two ecotypes. We also detected isolation by distance among juveniles but not in adults, suggesting that stranded juveniles display reduced intergenerational dispersal. The fine-scale structure of this admixture zone raises the question of how it will respond to future climate change and provides a reference point for further study. |
author2 |
Marie-Curie Fellowship - AGAPE program Natural Environment Research Council (NERC) PhD studentship |
format |
Article in Journal/Newspaper |
author |
Fontaine, Michaël C. Thatcher, Oliver Ray, Nicolas Piry, Sylvain Brownlow, Andrew Davison, Nicholas J. Jepson, Paul Deaville, Rob Goodman, Simon J. |
spellingShingle |
Fontaine, Michaël C. Thatcher, Oliver Ray, Nicolas Piry, Sylvain Brownlow, Andrew Davison, Nicholas J. Jepson, Paul Deaville, Rob Goodman, Simon J. Mixing of porpoise ecotypes in southwestern UK waters revealed by genetic profiling |
author_facet |
Fontaine, Michaël C. Thatcher, Oliver Ray, Nicolas Piry, Sylvain Brownlow, Andrew Davison, Nicholas J. Jepson, Paul Deaville, Rob Goodman, Simon J. |
author_sort |
Fontaine, Michaël C. |
title |
Mixing of porpoise ecotypes in southwestern UK waters revealed by genetic profiling |
title_short |
Mixing of porpoise ecotypes in southwestern UK waters revealed by genetic profiling |
title_full |
Mixing of porpoise ecotypes in southwestern UK waters revealed by genetic profiling |
title_fullStr |
Mixing of porpoise ecotypes in southwestern UK waters revealed by genetic profiling |
title_full_unstemmed |
Mixing of porpoise ecotypes in southwestern UK waters revealed by genetic profiling |
title_sort |
mixing of porpoise ecotypes in southwestern uk waters revealed by genetic profiling |
publisher |
The Royal Society |
publishDate |
2017 |
url |
http://dx.doi.org/10.1098/rsos.160992 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.160992 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.160992 |
genre |
Phocoena phocoena |
genre_facet |
Phocoena phocoena |
op_source |
Royal Society Open Science volume 4, issue 3, page 160992 ISSN 2054-5703 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsos.160992 |
container_title |
Royal Society Open Science |
container_volume |
4 |
container_issue |
3 |
container_start_page |
160992 |
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1800736682730848256 |