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Journal Articles Science Year : 2015

Patterns and ecological drivers of ocean viral communities

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Simon Roux
Samuel Chaffron
Josep Gasol
  • Function : Author
Ann Gregory
  • Function : Author
Lionel Guidi
Pascal Hingamp
Daniele Iudicone
Hiroyuki Ogata
Bonnie Poulos
  • Function : Author
Sarah Schwenck
  • Function : Author
Chris Bowler
  • Function : Author
  • PersonId : 860770
Matthew Sullivan
C. Ignacio-Espinoza
  • Function : Author
M. Gasol
  • Function : Author
C. Gregory
  • Function : Author
M. Schwenck
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Abstract

Viruses influence ecosystems by modulating microbial population size, diversity, metabolic outputs, and gene flow. Here, we use quantitative double-stranded DNA (dsDNA) viral-fraction metagenomes (viromes) and whole viral community morphological data sets from 43 Tara Oceans expedition samples to assess viral community patterns and structure in the upper ocean. Protein cluster cataloging defined pelagic upper-ocean viral community pan and core gene sets and suggested that this sequence space is well-sampled. Analyses of viral protein clusters, populations, and morphology revealed biogeographic patterns whereby viral communities were passively transported on oceanic currents and locally structured by environmental conditions that affect host community structure. Together, these investigations establish a global ocean dsDNA viromic data set with analyses supporting the seed-bank hypothesis to explain how oceanic viral communities maintain high local diversity.

Dates and versions

hal-01768331 , version 1 (17-04-2018)

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Cite

Jennifer Brum, J Cesar Ignacio-Espinoza, Simon Roux, Guilhem Doulcier, Silvia G. Acinas, et al.. Patterns and ecological drivers of ocean viral communities. Science, 2015, 348 ( 6237), pp.1261498. ⟨10.1126/science.1261498⟩. ⟨hal-01768331⟩
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