Single-cell genomics of multiple uncultured stramenopiles reveals underestimated functional diversity across oceans

Yoann Seeleuthner 1, 2 Samuel Mondy 2, 3 Vincent Lombard 4 Quentin Carradec 2, 3 Eric Pelletier 2, 3 Marc Wessner 2, 3 Jade Leconte 2, 3 Jean-François Mangot 5 Julie Poulain 2 Karine Labadie 2 Ramiro Logares 6 Shinichi Sunagawa 7 Véronique De Berardinis 3, 2 Marc Salanoubat 2, 3 Céline Dimier 8 Stefanie Kandels-Lewis 7 Marc Picheral 9, 10 Sarah Searson 11 Stéphane Pesant 12, 13 Nicole Poulton 14 Ramunas Stepanauskas 14 Peer Bork 7 Chris Bowler 8 Pascal Hingamp 15 Matthew Sullivan 16 Daniele Iudicone 17 Ramon Massana 6 Jean-Marc Aury 2 Bernard Henrissat 4, 18 Eric Karsenti 8, 11, 19, 13 Olivier Jaillon 2, 3 Mike Sieracki 20 Colomban De Vargas 21 Patrick Wincker 2, 3 Silvia G. Acinas 6 Emmanuel Boss 22 Michael Follows 23 Gabriel Gorsky 13 Nigel Grimsley 24 Lee Karp-Boss 22 Uros Krzic 7 Fabrice Not 21 Jeroen Raes 25 Emmanuel G. Reynaud 26 Christian Sardet 13, 27 Sabrina Speich 28, 29 Lars Stemmann 13 Jean Weissenbach 30 Didier Velayoudon 30
Abstract : Single-celled eukaryotes (protists) are critical players in global biogeochemical cycling of nutrients and energy in the oceans. While their roles as primary producers and grazers are well appreciated, other aspects of their life histories remain obscure due to challenges in culturing and sequencing their natural diversity. Here, we exploit single-cell genomics and metagenomics data from the circumglobal $Tara$ Oceans expedition to analyze the genome content and apparent oceanic distribution of seven prevalent lineages of uncultured heterotrophic stramenopiles. Based on the available data, each sequenced genome or genotype appears to have a specific oceanic distribution, principally correlated with water temperature and depth. The genome content provides hypotheses for specialization in terms of cell motility, food spectra, and trophic stages, including the potential impact on their lifestyles of horizontal gene transfer from prokaryotes. Our results support the idea that prominent heterotrophic marine protists perform diverse functions in ocean ecology.
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Nature Communications, Nature Publishing Group, 2018, 9, pp.310. 〈10.1038/s41467-017-02235-3〉
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https://hal.archives-ouvertes.fr/hal-01771839
Contributeur : Pascal Hingamp <>
Soumis le : jeudi 19 avril 2018 - 21:51:41
Dernière modification le : jeudi 7 février 2019 - 15:26:33

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Yoann Seeleuthner, Samuel Mondy, Vincent Lombard, Quentin Carradec, Eric Pelletier, et al.. Single-cell genomics of multiple uncultured stramenopiles reveals underestimated functional diversity across oceans. Nature Communications, Nature Publishing Group, 2018, 9, pp.310. 〈10.1038/s41467-017-02235-3〉. 〈hal-01771839〉

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