Evolutionary history of the porpoise family ( Phocoenidae ):A perspective from mitogenomes
The six species of porpoises inhabit the cold waters of the globe, displaying a textbook example of anti-tropical distribution in marine mammals. Nevertheless, the evolutionary history of the porpoises still remained poorly understood, but this knowledge is crucial to illuminate the conservation iss...
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ftunigroningenpu:oai:pure.rug.nl:publications/11bb8cb3-3c30-4977-93e3-a0ec88c0f1ab 2024-06-02T08:11:26+00:00 Evolutionary history of the porpoise family ( Phocoenidae ):A perspective from mitogenomes Ben Chehida, Hedi 2018-04 https://hdl.handle.net/11370/11bb8cb3-3c30-4977-93e3-a0ec88c0f1ab https://research.rug.nl/en/publications/11bb8cb3-3c30-4977-93e3-a0ec88c0f1ab https://www.europeancetaceansociety.eu/sites/default/files/2018_LaSpezia_programme.pdf https://www.europeancetaceansociety.eu/sites/default/files/27253%20ABSTRACT%20BOOK_nuovo_LR.pdf eng eng https://research.rug.nl/en/publications/11bb8cb3-3c30-4977-93e3-a0ec88c0f1ab info:eu-repo/semantics/openAccess Ben Chehida , H 2018 , ' Evolutionary history of the porpoise family ( Phocoenidae ) : A perspective from mitogenomes ' , 32 nd Conference of the European Cetacean Society , La Spezia , Italy , 08/04/2018 - 10/04/2018 . < https://www.europeancetaceansociety.eu/sites/default/files/2018_LaSpezia_programme.pdf > conferenceObject 2018 ftunigroningenpu 2024-05-07T20:36:23Z The six species of porpoises inhabit the cold waters of the globe, displaying a textbook example of anti-tropical distribution in marine mammals. Nevertheless, the evolutionary history of the porpoises still remained poorly understood, but this knowledge is crucial to illuminate the conservation issues reported in these species (e.g. the nearly extinct vaquita, Yangzte finless porpoises; subspecies of harbour porpoises; poorly known spectacled and Burmeister porpoises). In this study, we reconstructed the evolutionary history of the porpoises in relation to past climatic changes. We used Next Generation Sequencing to assemble the mitochondrial genomes of 57 porpoises, resulting in a 16303 bps alignments. In contrast to previous beliefs, phylogenetic and population genetic analyses revealed that spectacled and Burmeister’s porpoises share a more recent common ancestor than with the vaquita. The vaquita would have split from the other during the Pliocene and then recently collapsed. We also observed unreported subspecies level of divergence within the Pacific harbour porpoises similar to those reported in the North Atlantic, suggesting a richer evolutionary history than previously thought for this species. Our results provide a new perspective on the divergence, adaptation and speciation processes involved in the diversification of the porpoises. Conference Object North Atlantic University of Groningen research database Pacific |
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Open Polar |
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University of Groningen research database |
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ftunigroningenpu |
language |
English |
description |
The six species of porpoises inhabit the cold waters of the globe, displaying a textbook example of anti-tropical distribution in marine mammals. Nevertheless, the evolutionary history of the porpoises still remained poorly understood, but this knowledge is crucial to illuminate the conservation issues reported in these species (e.g. the nearly extinct vaquita, Yangzte finless porpoises; subspecies of harbour porpoises; poorly known spectacled and Burmeister porpoises). In this study, we reconstructed the evolutionary history of the porpoises in relation to past climatic changes. We used Next Generation Sequencing to assemble the mitochondrial genomes of 57 porpoises, resulting in a 16303 bps alignments. In contrast to previous beliefs, phylogenetic and population genetic analyses revealed that spectacled and Burmeister’s porpoises share a more recent common ancestor than with the vaquita. The vaquita would have split from the other during the Pliocene and then recently collapsed. We also observed unreported subspecies level of divergence within the Pacific harbour porpoises similar to those reported in the North Atlantic, suggesting a richer evolutionary history than previously thought for this species. Our results provide a new perspective on the divergence, adaptation and speciation processes involved in the diversification of the porpoises. |
format |
Conference Object |
author |
Ben Chehida, Hedi |
spellingShingle |
Ben Chehida, Hedi Evolutionary history of the porpoise family ( Phocoenidae ):A perspective from mitogenomes |
author_facet |
Ben Chehida, Hedi |
author_sort |
Ben Chehida, Hedi |
title |
Evolutionary history of the porpoise family ( Phocoenidae ):A perspective from mitogenomes |
title_short |
Evolutionary history of the porpoise family ( Phocoenidae ):A perspective from mitogenomes |
title_full |
Evolutionary history of the porpoise family ( Phocoenidae ):A perspective from mitogenomes |
title_fullStr |
Evolutionary history of the porpoise family ( Phocoenidae ):A perspective from mitogenomes |
title_full_unstemmed |
Evolutionary history of the porpoise family ( Phocoenidae ):A perspective from mitogenomes |
title_sort |
evolutionary history of the porpoise family ( phocoenidae ):a perspective from mitogenomes |
publishDate |
2018 |
url |
https://hdl.handle.net/11370/11bb8cb3-3c30-4977-93e3-a0ec88c0f1ab https://research.rug.nl/en/publications/11bb8cb3-3c30-4977-93e3-a0ec88c0f1ab https://www.europeancetaceansociety.eu/sites/default/files/2018_LaSpezia_programme.pdf https://www.europeancetaceansociety.eu/sites/default/files/27253%20ABSTRACT%20BOOK_nuovo_LR.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Ben Chehida , H 2018 , ' Evolutionary history of the porpoise family ( Phocoenidae ) : A perspective from mitogenomes ' , 32 nd Conference of the European Cetacean Society , La Spezia , Italy , 08/04/2018 - 10/04/2018 . < https://www.europeancetaceansociety.eu/sites/default/files/2018_LaSpezia_programme.pdf > |
op_relation |
https://research.rug.nl/en/publications/11bb8cb3-3c30-4977-93e3-a0ec88c0f1ab |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1800757583569485824 |