Diversity of the Pterasteridae (Asteroidea) in the Southern Ocean: a molecular and morphological approach.
12 pages International audience An integrative approach is crucial in discrimination of species, especially for taxa that are difficult to identify based on morphological characters. In this study, we combine genetics and morphology to assess the diversity of Pterasteridae, a sea star family diversi...
Published in: | Zoological Journal of the Linnean Society |
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Online Access: | https://hal.science/hal-03289108 https://doi.org/10.1093/zoolinnean/zlaa097 |
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ftunivbourgogne:oai:HAL:hal-03289108v1 2024-01-07T09:40:03+01:00 Diversity of the Pterasteridae (Asteroidea) in the Southern Ocean: a molecular and morphological approach. Jossart, Quentin Kochzius, Marc Danis, Bruno Saucède, Thomas Moreau, Camille V.E. Marine Biology, Ecology and Biodiversity Vrije Universiteit Brussel Bruxelles (VUB) Laboratoire de Biologie Marine (LBM) Université libre de Bruxelles (ULB) Biogéosciences UMR 6282 (BGS) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) Work supported by the 'Refugia and Ecosystem Tolerance in the Southern Ocean' project (RECTO; BR/154/A1/RECTO) funded by the ` Belgian Science Policy Office' (BELSPO). This is contribution no. 15 to the RECTO project. 2021-05-01 https://hal.science/hal-03289108 https://doi.org/10.1093/zoolinnean/zlaa097 en eng HAL CCSD Linnean Society of London info:eu-repo/semantics/altIdentifier/doi/10.1093/zoolinnean/zlaa097 hal-03289108 https://hal.science/hal-03289108 doi:10.1093/zoolinnean/zlaa097 ISSN: 0024-4082 EISSN: 1096-3642 Zoological Journal of the Linnean Society https://hal.science/hal-03289108 Zoological Journal of the Linnean Society, 2021, 192 (1), pp.105-116. ⟨10.1093/zoolinnean/zlaa097⟩ https://academic.oup.com/zoolinnean/article-abstract/192/1/105/5907661?redirectedFrom=fulltext Antarctica COI mitochondrial DNA cryptic species deep sea echinoderms identification key morphological systematics phylogenetics taxonomy [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2021 ftunivbourgogne https://doi.org/10.1093/zoolinnean/zlaa097 2023-12-12T23:41:14Z 12 pages International audience An integrative approach is crucial in discrimination of species, especially for taxa that are difficult to identify based on morphological characters. In this study, we combine genetics and morphology to assess the diversity of Pterasteridae, a sea star family diversified in deep-sea and polar environments. Because of their derived anatomy and the frequent loss of characters during preservation, Pterasteridae are a suitable case for an integrative study. The molecular identification of 191 specimens (mostly from the Southern Ocean) suggests 26–33 species in three genera (Diplopteraster, Hymenaster and Pteraster), which match the morphological identification in 54–62% of cases. The mismatches are either different molecular units that are morphologically indistinguishable (e.g. Pteraster stellifer units 2 and 4) or, conversely, nominal species that are genetically identical (e.g. Hymenaster coccinatus/densus/praecoquis). Several species are shared between the Northern and Southern Hemispheres (e.g. Pteraster jordani/affinis). In conclusion, the taxonomic status of some groups is confirmed, but for others we find the need to re-evaluate the taxonomy at both genus and species levels. This work significantly increases the DNA barcode library of the Southern Ocean species and merges taxonomic information into an identification key that could become a baseline for future studies (pterasteridae-so.identificationkey.org). Article in Journal/Newspaper Antarc* Antarctica Southern Ocean Université de Bourgogne (UB): HAL Southern Ocean Zoological Journal of the Linnean Society 192 1 105 116 |
institution |
Open Polar |
collection |
Université de Bourgogne (UB): HAL |
op_collection_id |
ftunivbourgogne |
language |
English |
topic |
Antarctica COI mitochondrial DNA cryptic species deep sea echinoderms identification key morphological systematics phylogenetics taxonomy [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Antarctica COI mitochondrial DNA cryptic species deep sea echinoderms identification key morphological systematics phylogenetics taxonomy [SDE.BE]Environmental Sciences/Biodiversity and Ecology Jossart, Quentin Kochzius, Marc Danis, Bruno Saucède, Thomas Moreau, Camille V.E. Diversity of the Pterasteridae (Asteroidea) in the Southern Ocean: a molecular and morphological approach. |
topic_facet |
Antarctica COI mitochondrial DNA cryptic species deep sea echinoderms identification key morphological systematics phylogenetics taxonomy [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
12 pages International audience An integrative approach is crucial in discrimination of species, especially for taxa that are difficult to identify based on morphological characters. In this study, we combine genetics and morphology to assess the diversity of Pterasteridae, a sea star family diversified in deep-sea and polar environments. Because of their derived anatomy and the frequent loss of characters during preservation, Pterasteridae are a suitable case for an integrative study. The molecular identification of 191 specimens (mostly from the Southern Ocean) suggests 26–33 species in three genera (Diplopteraster, Hymenaster and Pteraster), which match the morphological identification in 54–62% of cases. The mismatches are either different molecular units that are morphologically indistinguishable (e.g. Pteraster stellifer units 2 and 4) or, conversely, nominal species that are genetically identical (e.g. Hymenaster coccinatus/densus/praecoquis). Several species are shared between the Northern and Southern Hemispheres (e.g. Pteraster jordani/affinis). In conclusion, the taxonomic status of some groups is confirmed, but for others we find the need to re-evaluate the taxonomy at both genus and species levels. This work significantly increases the DNA barcode library of the Southern Ocean species and merges taxonomic information into an identification key that could become a baseline for future studies (pterasteridae-so.identificationkey.org). |
author2 |
Marine Biology, Ecology and Biodiversity Vrije Universiteit Brussel Bruxelles (VUB) Laboratoire de Biologie Marine (LBM) Université libre de Bruxelles (ULB) Biogéosciences UMR 6282 (BGS) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) Work supported by the 'Refugia and Ecosystem Tolerance in the Southern Ocean' project (RECTO; BR/154/A1/RECTO) funded by the ` Belgian Science Policy Office' (BELSPO). This is contribution no. 15 to the RECTO project. |
format |
Article in Journal/Newspaper |
author |
Jossart, Quentin Kochzius, Marc Danis, Bruno Saucède, Thomas Moreau, Camille V.E. |
author_facet |
Jossart, Quentin Kochzius, Marc Danis, Bruno Saucède, Thomas Moreau, Camille V.E. |
author_sort |
Jossart, Quentin |
title |
Diversity of the Pterasteridae (Asteroidea) in the Southern Ocean: a molecular and morphological approach. |
title_short |
Diversity of the Pterasteridae (Asteroidea) in the Southern Ocean: a molecular and morphological approach. |
title_full |
Diversity of the Pterasteridae (Asteroidea) in the Southern Ocean: a molecular and morphological approach. |
title_fullStr |
Diversity of the Pterasteridae (Asteroidea) in the Southern Ocean: a molecular and morphological approach. |
title_full_unstemmed |
Diversity of the Pterasteridae (Asteroidea) in the Southern Ocean: a molecular and morphological approach. |
title_sort |
diversity of the pterasteridae (asteroidea) in the southern ocean: a molecular and morphological approach. |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03289108 https://doi.org/10.1093/zoolinnean/zlaa097 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Antarc* Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctica Southern Ocean |
op_source |
ISSN: 0024-4082 EISSN: 1096-3642 Zoological Journal of the Linnean Society https://hal.science/hal-03289108 Zoological Journal of the Linnean Society, 2021, 192 (1), pp.105-116. ⟨10.1093/zoolinnean/zlaa097⟩ https://academic.oup.com/zoolinnean/article-abstract/192/1/105/5907661?redirectedFrom=fulltext |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1093/zoolinnean/zlaa097 hal-03289108 https://hal.science/hal-03289108 doi:10.1093/zoolinnean/zlaa097 |
op_doi |
https://doi.org/10.1093/zoolinnean/zlaa097 |
container_title |
Zoological Journal of the Linnean Society |
container_volume |
192 |
container_issue |
1 |
container_start_page |
105 |
op_container_end_page |
116 |
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1787430422676766720 |