Insights into global diatom distribution and diversity in the world's ocean
International audience Diatoms (Bacillariophyta) constitute one of the most diverse and ecologically important groups of phytoplankton. They are considered to be particularly important in nutrient-rich coastal ecosystems and at high latitudes, but considerably less so in the oligotrophic open ocean....
Published in: | Proceedings of the National Academy of Sciences |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2016
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Online Access: | https://hal.science/hal-01545320 https://doi.org/10.1073/pnas.1509523113 |
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ftunivantilles:oai:HAL:hal-01545320v1 |
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Open Polar |
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Université des Antilles (UAG): HAL |
op_collection_id |
ftunivantilles |
language |
English |
topic |
biodiversity diatoms metabarcoding Tara Oceans choke points [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry Molecular Biology/Genomics [q-bio.GN] |
spellingShingle |
biodiversity diatoms metabarcoding Tara Oceans choke points [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry Molecular Biology/Genomics [q-bio.GN] Malviya, Shruti Scalco, Eleonora Audic, Stephane Vincenta, Flora Veluchamy, Alaguraj Poulain, Julie Wincker, Patrick Iudicone, Daniele Vargas, Colomban, De Bittner, Lucie Zingone, Adriana Bowler, Chris Insights into global diatom distribution and diversity in the world's ocean |
topic_facet |
biodiversity diatoms metabarcoding Tara Oceans choke points [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry Molecular Biology/Genomics [q-bio.GN] |
description |
International audience Diatoms (Bacillariophyta) constitute one of the most diverse and ecologically important groups of phytoplankton. They are considered to be particularly important in nutrient-rich coastal ecosystems and at high latitudes, but considerably less so in the oligotrophic open ocean. The Tara Oceans circumnavigation collected samples from a wide range of oceanic regions using a standardized sampling procedure. Here, a total of similar to 12 million diatom V9-18S ribosomal DNA (rDNA) ribotypes, derived from 293 size-fractionated plankton communities collected at 46 sampling sites across the global ocean euphotic zone, have been analyzed to explore diatom global diversity and community composition. We provide a new estimate of diversity of marine planktonic diatoms at 4,748 operational taxonomic units (OTUs). Based on the total assigned ribotypes, Chaetoceros was the most abundant and diverse genus, followed by Fragilariopsis, Thalassiosira, and Corethron. We found only a few cosmopolitan ribotypes displaying an even distribution across stations and high abundance, many of which could not be assigned with confidence to any known genus. Three distinct communities from South Pacific, Mediterranean, and Southern Ocean waters were identified that share a substantial percentage of ribotypes within them. Sudden drops in diversity were observed at Cape Agulhas, which separates the Indian and Atlantic Oceans, and across the Drake Passage between the Atlantic and Southern Oceans, indicating the importance of these ocean circulation choke points in constraining diatom distribution and diversity. We also observed high diatom diversity in the open ocean, suggesting that diatoms may be more relevant in these oceanic systems than generally considered. |
author2 |
Analyse des Données à Haut Débit en Génomique (ADHDG) Evolution Paris Seine Université des Antilles et de la Guyane (UAG)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles et de la Guyane (UAG)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS) Ministero dell'Istruzione dell'Universit a e della Ricerca RITMARE project Centre National de la Recherche Scientifique Agnes b. Veolia Environment Foundation Region Bretagne World Courier Illumina Cap L'Orient Electricite de France (EDF) Foundation EDF Diversiterre Fondation pour la Recherche sur la Biodiversite Prince Albert II de Monaco Foundation Etienne Bourgois Groupement de Recherche GDR3280 Tara schooner European Molecular Biology Laboratory Genoscope/Commissariat a l'Energie Atomique French Government ``Investissements d'Avenir'' ANR-11-BTBR-0008, ANR-10-INBS-09-08, ANR-10-LABX-54 Paris Sciences et Lettres (PSL star ) Research University ANR-11-IDEX-0001-02 Agence Nationale de la Recherche (ANR) ANR-10-INBS-09-08, ANR-09-BLAN-0348, ANR-09-GENM-031, ANR-2010-1709-01 European Union 287589 European Research Council 294823 |
format |
Article in Journal/Newspaper |
author |
Malviya, Shruti Scalco, Eleonora Audic, Stephane Vincenta, Flora Veluchamy, Alaguraj Poulain, Julie Wincker, Patrick Iudicone, Daniele Vargas, Colomban, De Bittner, Lucie Zingone, Adriana Bowler, Chris |
author_facet |
Malviya, Shruti Scalco, Eleonora Audic, Stephane Vincenta, Flora Veluchamy, Alaguraj Poulain, Julie Wincker, Patrick Iudicone, Daniele Vargas, Colomban, De Bittner, Lucie Zingone, Adriana Bowler, Chris |
author_sort |
Malviya, Shruti |
title |
Insights into global diatom distribution and diversity in the world's ocean |
title_short |
Insights into global diatom distribution and diversity in the world's ocean |
title_full |
Insights into global diatom distribution and diversity in the world's ocean |
title_fullStr |
Insights into global diatom distribution and diversity in the world's ocean |
title_full_unstemmed |
Insights into global diatom distribution and diversity in the world's ocean |
title_sort |
insights into global diatom distribution and diversity in the world's ocean |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-01545320 https://doi.org/10.1073/pnas.1509523113 |
genre |
Drake Passage Southern Ocean |
genre_facet |
Drake Passage Southern Ocean |
op_source |
ISSN: 0027-8424 EISSN: 1091-6490 Proceedings of the National Academy of Sciences of the United States of America https://hal.science/hal-01545320 Proceedings of the National Academy of Sciences of the United States of America, 2016, 113 (11), pp.E1516-E1525. ⟨10.1073/pnas.1509523113⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1073/pnas.1509523113 hal-01545320 https://hal.science/hal-01545320 doi:10.1073/pnas.1509523113 PUBMEDCENTRAL: PMC4801293 |
op_doi |
https://doi.org/10.1073/pnas.1509523113 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
113 |
container_issue |
11 |
container_start_page |
E1516 |
op_container_end_page |
E1525 |
_version_ |
1786838302968512512 |
spelling |
ftunivantilles:oai:HAL:hal-01545320v1 2023-12-31T10:06:19+01:00 Insights into global diatom distribution and diversity in the world's ocean Malviya, Shruti Scalco, Eleonora Audic, Stephane Vincenta, Flora Veluchamy, Alaguraj Poulain, Julie Wincker, Patrick Iudicone, Daniele Vargas, Colomban, De Bittner, Lucie Zingone, Adriana Bowler, Chris Analyse des Données à Haut Débit en Génomique (ADHDG) Evolution Paris Seine Université des Antilles et de la Guyane (UAG)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles et de la Guyane (UAG)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS) Ministero dell'Istruzione dell'Universit a e della Ricerca RITMARE project Centre National de la Recherche Scientifique Agnes b. Veolia Environment Foundation Region Bretagne World Courier Illumina Cap L'Orient Electricite de France (EDF) Foundation EDF Diversiterre Fondation pour la Recherche sur la Biodiversite Prince Albert II de Monaco Foundation Etienne Bourgois Groupement de Recherche GDR3280 Tara schooner European Molecular Biology Laboratory Genoscope/Commissariat a l'Energie Atomique French Government ``Investissements d'Avenir'' ANR-11-BTBR-0008, ANR-10-INBS-09-08, ANR-10-LABX-54 Paris Sciences et Lettres (PSL star ) Research University ANR-11-IDEX-0001-02 Agence Nationale de la Recherche (ANR) ANR-10-INBS-09-08, ANR-09-BLAN-0348, ANR-09-GENM-031, ANR-2010-1709-01 European Union 287589 European Research Council 294823 2016-03 https://hal.science/hal-01545320 https://doi.org/10.1073/pnas.1509523113 en eng HAL CCSD National Academy of Sciences info:eu-repo/semantics/altIdentifier/doi/10.1073/pnas.1509523113 hal-01545320 https://hal.science/hal-01545320 doi:10.1073/pnas.1509523113 PUBMEDCENTRAL: PMC4801293 ISSN: 0027-8424 EISSN: 1091-6490 Proceedings of the National Academy of Sciences of the United States of America https://hal.science/hal-01545320 Proceedings of the National Academy of Sciences of the United States of America, 2016, 113 (11), pp.E1516-E1525. ⟨10.1073/pnas.1509523113⟩ biodiversity diatoms metabarcoding Tara Oceans choke points [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry Molecular Biology/Genomics [q-bio.GN] info:eu-repo/semantics/article Journal articles 2016 ftunivantilles https://doi.org/10.1073/pnas.1509523113 2023-12-05T23:35:58Z International audience Diatoms (Bacillariophyta) constitute one of the most diverse and ecologically important groups of phytoplankton. They are considered to be particularly important in nutrient-rich coastal ecosystems and at high latitudes, but considerably less so in the oligotrophic open ocean. The Tara Oceans circumnavigation collected samples from a wide range of oceanic regions using a standardized sampling procedure. Here, a total of similar to 12 million diatom V9-18S ribosomal DNA (rDNA) ribotypes, derived from 293 size-fractionated plankton communities collected at 46 sampling sites across the global ocean euphotic zone, have been analyzed to explore diatom global diversity and community composition. We provide a new estimate of diversity of marine planktonic diatoms at 4,748 operational taxonomic units (OTUs). Based on the total assigned ribotypes, Chaetoceros was the most abundant and diverse genus, followed by Fragilariopsis, Thalassiosira, and Corethron. We found only a few cosmopolitan ribotypes displaying an even distribution across stations and high abundance, many of which could not be assigned with confidence to any known genus. Three distinct communities from South Pacific, Mediterranean, and Southern Ocean waters were identified that share a substantial percentage of ribotypes within them. Sudden drops in diversity were observed at Cape Agulhas, which separates the Indian and Atlantic Oceans, and across the Drake Passage between the Atlantic and Southern Oceans, indicating the importance of these ocean circulation choke points in constraining diatom distribution and diversity. We also observed high diatom diversity in the open ocean, suggesting that diatoms may be more relevant in these oceanic systems than generally considered. Article in Journal/Newspaper Drake Passage Southern Ocean Université des Antilles (UAG): HAL Proceedings of the National Academy of Sciences 113 11 E1516 E1525 |