Mitochondrial DNA reveals historical maternal lineages and a postglacial expansion of the grey seal in European waters

International audience ABSTRACT: Three different evolutionarily significant units (ESU) can be discerned in the grey seal Halichoerus grypus: in the northwest Atlantic, the northeast Atlantic and the Baltic Sea. The northeast Atlantic population has been strongly affected by hunting around the Europ...

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Published in:Marine Ecology Progress Series
Main Authors: Decker, C, Hassani, S, Jezequel, Md, Rault, C, Dumas, C, Méheust, E, Alfonsi, E, Jung, Jean-Luc
Other Authors: Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Université de Brest (UBO)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2017
Subjects:
Online Access:https://hal.science/hal-02967829
https://doi.org/10.3354/meps12003
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spelling ftsorbonneuniv:oai:HAL:hal-02967829v1 2024-05-19T07:45:30+00:00 Mitochondrial DNA reveals historical maternal lineages and a postglacial expansion of the grey seal in European waters Decker, C Hassani, S Jezequel, Md Rault, C Dumas, C Méheust, E Alfonsi, E Jung, Jean-Luc Institut de Systématique, Evolution, Biodiversité (ISYEB ) Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) Université de Brest (UBO) 2017-02-27 https://hal.science/hal-02967829 https://doi.org/10.3354/meps12003 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps12003 hal-02967829 https://hal.science/hal-02967829 doi:10.3354/meps12003 ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-02967829 Marine Ecology Progress Series, 2017, 566, pp.217-227. ⟨10.3354/meps12003⟩ Grey seals · Genetic diversity · Marine mammals · Mitochondrial control region · Population divergence time [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy info:eu-repo/semantics/article Journal articles 2017 ftsorbonneuniv https://doi.org/10.3354/meps12003 2024-04-25T04:01:17Z International audience ABSTRACT: Three different evolutionarily significant units (ESU) can be discerned in the grey seal Halichoerus grypus: in the northwest Atlantic, the northeast Atlantic and the Baltic Sea. The northeast Atlantic population has been strongly affected by hunting around the European mainland, where it is only in the last decades that breeding colonies have reappeared. The southernmost settlement of the northeast Atlantic ESU is found in the Molène archipelago, northwest France. We studied polymorphisms of the mitochondrial control region (MCR) in grey seals sampled along the Atlantic coast of France for over a decade. MCR polymorphisms highlighted the existence of 4 major MCR haplogroups. Comparison of MCR sequences with those in the GenBank database yielded highly significant differentiation between grey seals sampled in France and grey seals originating from the North Sea and the north and east of the British Isles, as well as from the Baltic Sea. MCR haplogroups were also identified in Baltic Sea grey seals, with some being in common with our samples, while others were not. The times of separation between the MCR haplogroups were estimated to be between 84000 and 20500 years ago, and differentiation between Baltic Sea and French coast haplotypes was estimated to have occurred approximately 8000 years ago. These data, added to positive expansion signals, suggest that MCR haplogroups correspond to ancestral maternal lineages, isolated in different grey seal refugia during the last ice age and prior to the expansion of the species in the North Atlantic and the separation between the East Atlantic and the Baltic Sea ESUs.Three different evolutionarily significant units (ESU) can be discerned in the grey seal Halichoerus grypus: in the northwest Atlantic, the northeast Atlantic and the Baltic Sea. The northeast Atlantic population has been strongly affected by hunting around the European mainland, where it is only in the last decades that breeding colonies have reappeared. The southernmost ... Article in Journal/Newspaper North Atlantic Northeast Atlantic Northwest Atlantic HAL Sorbonne Université Marine Ecology Progress Series 566 217 227
institution Open Polar
collection HAL Sorbonne Université
op_collection_id ftsorbonneuniv
language English
topic Grey seals · Genetic diversity · Marine mammals · Mitochondrial control region · Population divergence time
[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics
Phylogenetics and taxonomy
spellingShingle Grey seals · Genetic diversity · Marine mammals · Mitochondrial control region · Population divergence time
[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics
Phylogenetics and taxonomy
Decker, C
Hassani, S
Jezequel, Md
Rault, C
Dumas, C
Méheust, E
Alfonsi, E
Jung, Jean-Luc
Mitochondrial DNA reveals historical maternal lineages and a postglacial expansion of the grey seal in European waters
topic_facet Grey seals · Genetic diversity · Marine mammals · Mitochondrial control region · Population divergence time
[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics
Phylogenetics and taxonomy
description International audience ABSTRACT: Three different evolutionarily significant units (ESU) can be discerned in the grey seal Halichoerus grypus: in the northwest Atlantic, the northeast Atlantic and the Baltic Sea. The northeast Atlantic population has been strongly affected by hunting around the European mainland, where it is only in the last decades that breeding colonies have reappeared. The southernmost settlement of the northeast Atlantic ESU is found in the Molène archipelago, northwest France. We studied polymorphisms of the mitochondrial control region (MCR) in grey seals sampled along the Atlantic coast of France for over a decade. MCR polymorphisms highlighted the existence of 4 major MCR haplogroups. Comparison of MCR sequences with those in the GenBank database yielded highly significant differentiation between grey seals sampled in France and grey seals originating from the North Sea and the north and east of the British Isles, as well as from the Baltic Sea. MCR haplogroups were also identified in Baltic Sea grey seals, with some being in common with our samples, while others were not. The times of separation between the MCR haplogroups were estimated to be between 84000 and 20500 years ago, and differentiation between Baltic Sea and French coast haplotypes was estimated to have occurred approximately 8000 years ago. These data, added to positive expansion signals, suggest that MCR haplogroups correspond to ancestral maternal lineages, isolated in different grey seal refugia during the last ice age and prior to the expansion of the species in the North Atlantic and the separation between the East Atlantic and the Baltic Sea ESUs.Three different evolutionarily significant units (ESU) can be discerned in the grey seal Halichoerus grypus: in the northwest Atlantic, the northeast Atlantic and the Baltic Sea. The northeast Atlantic population has been strongly affected by hunting around the European mainland, where it is only in the last decades that breeding colonies have reappeared. The southernmost ...
author2 Institut de Systématique, Evolution, Biodiversité (ISYEB )
Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE)
Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)
Université de Brest (UBO)
format Article in Journal/Newspaper
author Decker, C
Hassani, S
Jezequel, Md
Rault, C
Dumas, C
Méheust, E
Alfonsi, E
Jung, Jean-Luc
author_facet Decker, C
Hassani, S
Jezequel, Md
Rault, C
Dumas, C
Méheust, E
Alfonsi, E
Jung, Jean-Luc
author_sort Decker, C
title Mitochondrial DNA reveals historical maternal lineages and a postglacial expansion of the grey seal in European waters
title_short Mitochondrial DNA reveals historical maternal lineages and a postglacial expansion of the grey seal in European waters
title_full Mitochondrial DNA reveals historical maternal lineages and a postglacial expansion of the grey seal in European waters
title_fullStr Mitochondrial DNA reveals historical maternal lineages and a postglacial expansion of the grey seal in European waters
title_full_unstemmed Mitochondrial DNA reveals historical maternal lineages and a postglacial expansion of the grey seal in European waters
title_sort mitochondrial dna reveals historical maternal lineages and a postglacial expansion of the grey seal in european waters
publisher HAL CCSD
publishDate 2017
url https://hal.science/hal-02967829
https://doi.org/10.3354/meps12003
genre North Atlantic
Northeast Atlantic
Northwest Atlantic
genre_facet North Atlantic
Northeast Atlantic
Northwest Atlantic
op_source ISSN: 0171-8630
EISSN: 1616-1599
Marine Ecology Progress Series
https://hal.science/hal-02967829
Marine Ecology Progress Series, 2017, 566, pp.217-227. ⟨10.3354/meps12003⟩
op_relation info:eu-repo/semantics/altIdentifier/doi/10.3354/meps12003
hal-02967829
https://hal.science/hal-02967829
doi:10.3354/meps12003
op_doi https://doi.org/10.3354/meps12003
container_title Marine Ecology Progress Series
container_volume 566
container_start_page 217
op_container_end_page 227
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