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Article Dans Une Revue Science Année : 2022

Diversity and ecological footprint of Global Ocean RNA viruses

Ahmed Zayed
James Wainaina
Jiarong Guo
Funing Tian
Benjamin Bolduc
Mohamed Mohssen
Olivier Zablocki
Karine Labadie
Jens Kuhn

Résumé

DNA viruses are increasingly recognized as influencing marine microbes and microbe-mediated biogeochemical cycling. However, little is known about global marine RNA virus diversity, ecology, and ecosystem roles. In this study, we uncover patterns and predictors of marine RNA virus community- and “species”-level diversity and contextualize their ecological impacts from pole to pole. Our analyses revealed four ecological zones, latitudinal and depth diversity patterns, and environmental correlates for RNA viruses. Our findings only partially parallel those of cosampled plankton and show unexpectedly high polar ecological interactions. The influence of RNA viruses on ecosystems appears to be large, as predicted hosts are ecologically important. Moreover, the occurrence of auxiliary metabolic genes indicates that RNA viruses cause reprogramming of diverse host metabolisms, including photosynthesis and carbon cycling, and that RNA virus abundances predict ocean carbon export.
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Dates et versions

hal-03781935 , version 1 (16-11-2022)

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Guillermo Dominguez-Huerta, Ahmed Zayed, James Wainaina, Jiarong Guo, Funing Tian, et al.. Diversity and ecological footprint of Global Ocean RNA viruses. Science, 2022, 376 (6598), pp.1202-1208. ⟨10.1126/science.abn6358⟩. ⟨hal-03781935⟩
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