Patterns and ecological drivers of ocean viral communities
Patterns and ecological drivers of ocean viral communities
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DOI：
10.1126/science.1261498
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发表时间：
2015-05-22
期刊：
影响因子：
56.9
通讯作者：
Sullivan, Matthew B.
中科院分区：
文献类型：
--
作者：
Brum, Jennifer R.;Ignacio-Espinoza, J. Cesar;Sullivan, Matthew B.
病毒通过调节微生物种群的大小、多样性、代谢产物和基因流来影响生态系统。在这里，我们使用定量的双链DNA（dsDNA）病毒组分宏基因组（病毒组）和整个病毒群落形态数据集从43个塔拉海洋考察样品，以评估病毒群落模式和结构在上层海洋。蛋白质簇编目定义了远洋上层海洋病毒群落泛和核心基因集，并建议该序列空间是良好的采样。病毒蛋白质簇，人口和形态的分析揭示病毒群落被动运输洋流和本地结构的环境条件，影响主机社区结构的地理模式。这些调查共同建立了全球海洋dsDNA病毒数据集，其分析支持种子库假说，以解释海洋病毒群落如何保持高度的局部多样性。
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.