Water mass specific genes dominate the Southern Ocean microbiome.
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
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Nature communications
2026
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| _version_ | 1868266074599849986 |
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| author | Faure, Emile Pommellec, Jolann Noel, Cyril Cormier, Alexandre Delpech, Lisa-Marie Eren, A Murat Fernandez-Guerra, Antonio Vanni, Chiara Fourquez, Marion Houssais, Marie-Noëlle Guyet, Ulysse Da Silva, Corinne Gavory, Frederick Perdereau, Aude Labadie, Karine Wincker, Patrick Poulain, Julie Hassler, Christel Lin, Yajuan Cassar, Nicolas Maignien, Loïs |
| author_facet | Faure, Emile Pommellec, Jolann Noel, Cyril Cormier, Alexandre Delpech, Lisa-Marie Eren, A Murat Fernandez-Guerra, Antonio Vanni, Chiara Fourquez, Marion Houssais, Marie-Noëlle Guyet, Ulysse Da Silva, Corinne Gavory, Frederick Perdereau, Aude Labadie, Karine Wincker, Patrick Poulain, Julie Hassler, Christel Lin, Yajuan Cassar, Nicolas Maignien, Loïs Faure, Emile Pommellec, Jolann Noel, Cyril Cormier, Alexandre Delpech, Lisa-Marie Eren, A Murat Fernandez-Guerra, Antonio Vanni, Chiara Fourquez, Marion Houssais, Marie-Noëlle Guyet, Ulysse Da Silva, Corinne Gavory, Frederick Perdereau, Aude Labadie, Karine Wincker, Patrick Poulain, Julie Hassler, Christel Lin, Yajuan Cassar, Nicolas Maignien, Loïs |
| collection | PubMed - marine biology |
| contents | Water mass specific genes dominate the Southern Ocean microbiome. Faure, Emile Pommellec, Jolann Noel, Cyril Cormier, Alexandre Delpech, Lisa-Marie Eren, A Murat Fernandez-Guerra, Antonio Vanni, Chiara Fourquez, Marion Houssais, Marie-Noëlle Guyet, Ulysse Da Silva, Corinne Gavory, Frederick Perdereau, Aude Labadie, Karine Wincker, Patrick Poulain, Julie Hassler, Christel Lin, Yajuan Cassar, Nicolas Maignien, Loïs Microbiota Seawater Oceans and Seas Metagenome Antarctic Regions Bacteria Sulfonium Compounds Arctic Regions Plankton Phylogeny The Southern Ocean (SO) plays a key role in regulating global biogeochemical cycles and climate, yet microbial genes sustaining its biological activity remain poorly characterized. We introduce a microbial genes collection from 218 metagenomes sampled during the Antarctic Circumnavigation Expedition, the majority of which are missing from functional databases. 38% even lack homologs in current reference marine gene catalogs, defining a singular genetic seascape. We show that SO gene assemblages exhibit a common polar signature with the Arctic Ocean while being structured by water masses at the SO-scale. We analyze genomic markers of diverse SO biomes, focusing on dimethylsulphoniopropionate (DMSP) cleavage by polar-adapted bacteria, organic matter consumption in the blooming Mertz polynya and adaptation to polar conditions in the ubiquitous bacteria Pelagibacter. Our work takes a step towards a comprehensive understanding of SO's plankton ecology and evolution, capturing the current state of the unique microbial diversity in this rapidly changing Ocean. |
| format | Artículo científico |
| id | pubmed_41803086 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Nature communications |
| record_format | pubmed |
| spellingShingle | Water mass specific genes dominate the Southern Ocean microbiome. Faure, Emile Pommellec, Jolann Noel, Cyril Cormier, Alexandre Delpech, Lisa-Marie Eren, A Murat Fernandez-Guerra, Antonio Vanni, Chiara Fourquez, Marion Houssais, Marie-Noëlle Guyet, Ulysse Da Silva, Corinne Gavory, Frederick Perdereau, Aude Labadie, Karine Wincker, Patrick Poulain, Julie Hassler, Christel Lin, Yajuan Cassar, Nicolas Maignien, Loïs Microbiota Seawater Oceans and Seas Metagenome Antarctic Regions Bacteria Sulfonium Compounds Arctic Regions Plankton Phylogeny Water mass specific genes dominate the Southern Ocean microbiome. Faure, Emile Pommellec, Jolann Noel, Cyril Cormier, Alexandre Delpech, Lisa-Marie Eren, A Murat Fernandez-Guerra, Antonio Vanni, Chiara Fourquez, Marion Houssais, Marie-Noëlle Guyet, Ulysse Da Silva, Corinne Gavory, Frederick Perdereau, Aude Labadie, Karine Wincker, Patrick Poulain, Julie Hassler, Christel Lin, Yajuan Cassar, Nicolas Maignien, Loïs Microbiota Seawater Oceans and Seas Metagenome Antarctic Regions Bacteria Sulfonium Compounds Arctic Regions Plankton Phylogeny The Southern Ocean (SO) plays a key role in regulating global biogeochemical cycles and climate, yet microbial genes sustaining its biological activity remain poorly characterized. We introduce a microbial genes collection from 218 metagenomes sampled during the Antarctic Circumnavigation Expedition, the majority of which are missing from functional databases. 38% even lack homologs in current reference marine gene catalogs, defining a singular genetic seascape. We show that SO gene assemblages exhibit a common polar signature with the Arctic Ocean while being structured by water masses at the SO-scale. We analyze genomic markers of diverse SO biomes, focusing on dimethylsulphoniopropionate (DMSP) cleavage by polar-adapted bacteria, organic matter consumption in the blooming Mertz polynya and adaptation to polar conditions in the ubiquitous bacteria Pelagibacter. Our work takes a step towards a comprehensive understanding of SO's plankton ecology and evolution, capturing the current state of the unique microbial diversity in this rapidly changing Ocean. |
| title | Water mass specific genes dominate the Southern Ocean microbiome. |
| topic | Microbiota Seawater Oceans and Seas Metagenome Antarctic Regions Bacteria Sulfonium Compounds Arctic Regions Plankton Phylogeny |
| url | https://pubmed.ncbi.nlm.nih.gov/41803086/ |