Diversity and ecological footprint of Global Ocean RNA viruses
Diversity and ecological footprint of Global Ocean RNA viruses
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DOI：
10.1126/science.abn6358
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发表时间：
2022-06-10
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：
Dominguez-Huerta, Guillermo;Zayed, Ahmed A.;Sullivan, Matthew B.
人们越来越认识到病毒对海洋微生物和微生物介导的生物地球化学循环的影响。然而，对全球海洋RNA病毒的多样性、生态学和生态系统作用知之甚少。在这项研究中，我们揭示了海洋RNA病毒群落和“物种”水平多样性的模式和预测因素，并分析了它们在两极之间的生态影响。我们的分析揭示了RNA病毒的四个生态区、纬度和深度多样性模式以及环境相关因素。我们的发现只是部分地与共同取样的浮游生物相似，并显示出意想不到的高度极地生态相互作用。RNA病毒对生态系统的影响似乎很大，正如所预测的宿主在生态上是重要的。此外，辅助代谢基因的出现表明，RNA病毒引起多种宿主代谢的重编程，包括光合作用和碳循环，RNA病毒丰度预测海洋碳输出。
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.