Comprehensive sampling reveals circumpolarity and sympatry in seven mitochondrial lineages of the Southern Ocean crinoid species Promachocrinus kerguelensis (Echinodermata)
Abstract Sampling at appropriate spatial scales in the Southern Ocean is logistically challenging and may influence estimates of diversity by missing intermediate representatives. With the assistance of sampling efforts especially influenced by the International Polar Year 2007–2008, we gathered nea...
Published in: | Molecular Ecology |
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Online Access: | http://dx.doi.org/10.1111/j.1365-294x.2012.05512.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2012.05512.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2012.05512.x |
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crwiley:10.1111/j.1365-294x.2012.05512.x 2024-06-02T07:58:15+00:00 Comprehensive sampling reveals circumpolarity and sympatry in seven mitochondrial lineages of the Southern Ocean crinoid species Promachocrinus kerguelensis (Echinodermata) HEMERY, L. G. ELÉAUME, M. ROUSSEL, V. AMÉZIANE, N. GALLUT, C. STEINKE, D. CRUAUD, C. COULOUX, A. WILSON, N. G. 2012 http://dx.doi.org/10.1111/j.1365-294x.2012.05512.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2012.05512.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2012.05512.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 Molecular Ecology volume 21, issue 10, page 2502-2518 ISSN 0962-1083 1365-294X journal-article 2012 crwiley https://doi.org/10.1111/j.1365-294x.2012.05512.x 2024-05-03T10:53:37Z Abstract Sampling at appropriate spatial scales in the Southern Ocean is logistically challenging and may influence estimates of diversity by missing intermediate representatives. With the assistance of sampling efforts especially influenced by the International Polar Year 2007–2008, we gathered nearly 1500 specimens of the crinoid species Promachocrinus kerguelensis from around Antarctica. We used phylogeographic and phylogenetic tools to assess its genetic diversity, demographic history and evolutionary relationships. Six phylogroups (A–F) identified in an earlier study are corroborated here, with the addition of one new phylogroup (E2). All phylogroups are circumpolar, sympatric and eurybathic. The phylogeny of Promachocrinus phylogroups reveals two principal clades that may represent two different cryptic species with contrasting demographic histories. Genetic diversity indices vary dramatically within phylogroups, and within populations, suggesting multiple glacial refugia in the Southern Ocean: on the Kerguelen Plateau, in the East Weddell Sea and the South Shetland Islands (Atlantic sector), and on the East Antarctic continental shelf in the Dumont d’Urville Sea and Ross Sea. The inferences of gene flow vary among the phylogroups, showing discordant spatial patterns. Phylogroup A is the only one found in the Sub‐Antarctic region, although without evident connectivity between Bouvet and Kerguelen populations. The Scotia Arc region shows high levels of connectivity between populations in most of the phylogroups, and barriers to gene flow are evident in East Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica D’Urville Sea East Antarctica International Polar Year Ross Sea South Shetland Islands Southern Ocean Weddell Sea Wiley Online Library Antarctic Bouvet ENVELOPE(3.358,3.358,-54.422,-54.422) Dumont d’Urville ENVELOPE(140.000,140.000,-66.667,-66.667) East Antarctica Kerguelen Ross Sea South Shetland Islands Southern Ocean Weddell Weddell Sea Molecular Ecology 21 10 2502 2518 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Sampling at appropriate spatial scales in the Southern Ocean is logistically challenging and may influence estimates of diversity by missing intermediate representatives. With the assistance of sampling efforts especially influenced by the International Polar Year 2007–2008, we gathered nearly 1500 specimens of the crinoid species Promachocrinus kerguelensis from around Antarctica. We used phylogeographic and phylogenetic tools to assess its genetic diversity, demographic history and evolutionary relationships. Six phylogroups (A–F) identified in an earlier study are corroborated here, with the addition of one new phylogroup (E2). All phylogroups are circumpolar, sympatric and eurybathic. The phylogeny of Promachocrinus phylogroups reveals two principal clades that may represent two different cryptic species with contrasting demographic histories. Genetic diversity indices vary dramatically within phylogroups, and within populations, suggesting multiple glacial refugia in the Southern Ocean: on the Kerguelen Plateau, in the East Weddell Sea and the South Shetland Islands (Atlantic sector), and on the East Antarctic continental shelf in the Dumont d’Urville Sea and Ross Sea. The inferences of gene flow vary among the phylogroups, showing discordant spatial patterns. Phylogroup A is the only one found in the Sub‐Antarctic region, although without evident connectivity between Bouvet and Kerguelen populations. The Scotia Arc region shows high levels of connectivity between populations in most of the phylogroups, and barriers to gene flow are evident in East Antarctica. |
format |
Article in Journal/Newspaper |
author |
HEMERY, L. G. ELÉAUME, M. ROUSSEL, V. AMÉZIANE, N. GALLUT, C. STEINKE, D. CRUAUD, C. COULOUX, A. WILSON, N. G. |
spellingShingle |
HEMERY, L. G. ELÉAUME, M. ROUSSEL, V. AMÉZIANE, N. GALLUT, C. STEINKE, D. CRUAUD, C. COULOUX, A. WILSON, N. G. Comprehensive sampling reveals circumpolarity and sympatry in seven mitochondrial lineages of the Southern Ocean crinoid species Promachocrinus kerguelensis (Echinodermata) |
author_facet |
HEMERY, L. G. ELÉAUME, M. ROUSSEL, V. AMÉZIANE, N. GALLUT, C. STEINKE, D. CRUAUD, C. COULOUX, A. WILSON, N. G. |
author_sort |
HEMERY, L. G. |
title |
Comprehensive sampling reveals circumpolarity and sympatry in seven mitochondrial lineages of the Southern Ocean crinoid species Promachocrinus kerguelensis (Echinodermata) |
title_short |
Comprehensive sampling reveals circumpolarity and sympatry in seven mitochondrial lineages of the Southern Ocean crinoid species Promachocrinus kerguelensis (Echinodermata) |
title_full |
Comprehensive sampling reveals circumpolarity and sympatry in seven mitochondrial lineages of the Southern Ocean crinoid species Promachocrinus kerguelensis (Echinodermata) |
title_fullStr |
Comprehensive sampling reveals circumpolarity and sympatry in seven mitochondrial lineages of the Southern Ocean crinoid species Promachocrinus kerguelensis (Echinodermata) |
title_full_unstemmed |
Comprehensive sampling reveals circumpolarity and sympatry in seven mitochondrial lineages of the Southern Ocean crinoid species Promachocrinus kerguelensis (Echinodermata) |
title_sort |
comprehensive sampling reveals circumpolarity and sympatry in seven mitochondrial lineages of the southern ocean crinoid species promachocrinus kerguelensis (echinodermata) |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1365-294x.2012.05512.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2012.05512.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2012.05512.x |
long_lat |
ENVELOPE(3.358,3.358,-54.422,-54.422) ENVELOPE(140.000,140.000,-66.667,-66.667) |
geographic |
Antarctic Bouvet Dumont d’Urville East Antarctica Kerguelen Ross Sea South Shetland Islands Southern Ocean Weddell Weddell Sea |
geographic_facet |
Antarctic Bouvet Dumont d’Urville East Antarctica Kerguelen Ross Sea South Shetland Islands Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica D’Urville Sea East Antarctica International Polar Year Ross Sea South Shetland Islands Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica D’Urville Sea East Antarctica International Polar Year Ross Sea South Shetland Islands Southern Ocean Weddell Sea |
op_source |
Molecular Ecology volume 21, issue 10, page 2502-2518 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/j.1365-294x.2012.05512.x |
container_title |
Molecular Ecology |
container_volume |
21 |
container_issue |
10 |
container_start_page |
2502 |
op_container_end_page |
2518 |
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1800741538397945856 |