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Biogeography of marine giant viruses reveals their interplay with eukaryotes and ecological functions
Endo, H.; Blanc-Mathieu, R.; Li, Y.; Salazar, G.; Henry, N.; Labadie, K.; de Vargas, C.; Sullivan, M.B.; Bowler, C.; Wincker, P.; Karp-Boss, L.; Sunagawa, S.; Ogata, H. (2020). Biogeography of marine giant viruses reveals their interplay with eukaryotes and ecological functions. Nature Ecology & Evolution 4(12): 1639-1649. https://dx.doi.org/10.1038/s41559-020-01288-w
In: Nature Ecology & Evolution. Springer Nature. ISSN 2397-334X
|  |
| Auteurs | | Top |
- Endo, H.
- Blanc-Mathieu, R.
- Li, Y.
- Salazar, G.
- Henry, N.
|
- Labadie, K.
- de Vargas, C.
- Sullivan, M.B.
- Bowler, C.
|
- Wincker, P.
- Karp-Boss, L.
- Sunagawa, S.
- Ogata, H.
|
| Abstract |
Nucleocytoplasmic large DNA viruses (NCLDVs) are ubiquitous in marine environments and infect diverse eukaryotes. However, little is known about their biogeography and ecology in the ocean. By leveraging the Tara Oceans pole-to-pole metagenomic data set, we investigated the distribution of NCLDVs across size fractions, depths and biomes, as well as their associations with eukaryotic communities. Our analyses reveal a heterogeneous distribution of NCLDVs across oceans, and a higher proportion of unique NCLDVs in the polar biomes. The community structures of NCLDV families correlate with specific eukaryotic lineages, including many photosynthetic groups. NCLDV communities are generally distinct between surface and mesopelagic zones, but at some locations they exhibit a high similarity between the two depths. This vertical similarity correlates to surface phytoplankton biomass but not to physical mixing processes, which suggests a potential role of vertical transport in structuring mesopelagic NCLDV communities. These results underscore the importance of the interactions between NCLDVs and eukaryotes in biogeochemical processes in the ocean. |
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