articleScienceApr 7, 2022GREEN OA

Cryptic and abundant marine viruses at the evolutionary origins of Earth’s RNA virome

AAAhmed A. ZayedJMJames M. WainainaGDGuillermo Domínguez‐HuertaÉPÉric PelletierJGJiarong Guo

The Ohio State University · Centre National de la Recherche Scientifique · +11 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

Whereas DNA viruses are known to be abundant, diverse, and commonly key ecosystem players, RNA viruses are insufficiently studied outside disease settings. In this study, we analyzed ≈28 terabases of Global Ocean RNA sequences to expand Earth’s RNA virus catalogs and their taxonomy, investigate their evolutionary origins, and assess their marine biogeography from pole to pole. Using new approaches to optimize discovery and classification, we identified RNA viruses that necessitate substantive revisions of taxonomy (doubling phyla and adding >50% new classes) and evolutionary understanding. “Species”-rank abundance determination revealed that viruses of the new phyla “ Taraviricota ,” a missing link in early…

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259
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42.52
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100%
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150
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Authors

58

Topics & keywords

Topics
Keywords
  • Phylum
  • Human virome
  • RNA
  • Biology
  • Evolutionary biology
  • Phylogenetics
  • Taxonomy (biology)
  • Viral evolution
UN Sustainable Development Goals
  • Life below water
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