Patterns and ecological drivers of ocean viral communities.

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Bibliographic Details
Title:	Patterns and ecological drivers of ocean viral communities.
Authors:	Brum, Jennifer R., Ignacio-Espinoza, J. Cesar, Roux, Simon, Doulcier, Guilhem, Acinas, Silvia G., Alberti, Adriana, Chaffron, Samuel, Cruaud, Corinne, de Vargas, Colomban, Gasol, Josep M., Gorsky, Gabriel, Gregory, Ann C., Guidi, Lionel, Hingamp, Pascal, Iudicone, Daniele, Not, Fabrice, Ogata, Hiroyuki, Pesant, Stéphane, Poulos, Bonnie T., Schwenck, Sarah M.
Source:	Science (pre-March 2025). 5/22/2015, Vol. 348 Issue 6237, p1261498-1-1261498-10. 10p.
Subjects:	Viruses, Marine ecology, Microorganism populations, Gene flow, DNA, Viral proteins, Biogeography, Aquatic biodiversity
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. [ABSTRACT FROM AUTHOR]
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Database:	Psychology and Behavioral Sciences Collection

Description
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. [ABSTRACT FROM AUTHOR]
ISSN:	00368075
DOI:	10.1126/science.1261498