A global ocean atlas of eukaryotic genes

Tara Oceans Coordinators, Quentin Carradec, Eric Pelletier, Corinne Da Silva, Adriana Alberti, Yoann Seeleuthner, Romain Blanc-Mathieu, Gipsi Lima-Mendez, Fabio Rocha, Leila Tirichine, Karine Labadie, Amos Kirilovsky, Alexis Bertrand, Stefan Engelen, Mohammed Amin Madoui, Raphaël Méheust, Julie Poulain, Sarah Romac, Daniel J. Richter, Genki YoshikawaCéline Dimier, Stefanie Kandels-Lewis, Marc Picheral, Sarah Searson, Silvia G. Acinas, Emmanuel Boss, Michael Follows, Gabriel Gorsky, Nigel Grimsley, Lee Karp-Boss, Uros Krzic, Stephane Pesant, Emmanuel G. Reynaud, Christian Sardet, Mike Sieracki, Sabrina Speich, Lars Stemmann, Didier Velayoudon, Jean Weissenbach, Olivier Jaillon, Jean Marc Aury, Eric Karsenti, Matthew B. Sullivan, Shinichi Sunagawa, Peer Bork, Fabrice Not, Pascal Hingamp, Jeroen Raes, Lionel Guidi, Hiroyuki Ogata, Colomban De Vargas

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Résumé

While our knowledge about the roles of microbes and viruses in the ocean has increased tremendously due to recent advances in genomics and metagenomics, research on marine microbial eukaryotes and zooplankton has benefited much less from these new technologies because of their larger genomes, their enormous diversity, and largely unexplored physiologies. Here, we use a metatranscriptomics approach to capture expressed genes in open ocean Tara Oceans stations across four organismal size fractions. The individual sequence reads cluster into 116 million unigenes representing the largest reference collection of eukaryotic transcripts from any single biome. The catalog is used to unveil functions expressed by eukaryotic marine plankton, and to assess their functional biogeography. Almost half of the sequences have no similarity with known proteins, and a great number belong to new gene families with a restricted distribution in the ocean. Overall, the resource provides the foundations for exploring the roles of marine eukaryotes in ocean ecology and biogeochemistry.

langue originaleAnglais
Numéro d'article373
journalNature Communications
Volume9
Numéro de publication1
Les DOIs
Etat de la publicationPublié - 1 déc. 2018
Modification externeOui

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