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Viral Ecogenomics of Arctic Cryopeg Brine and Sea Ice

Journal Article · · mSystems
 [1];  [2];  [3];  [3];  [4];  [2];  [2];  [3];  [3];  [2];  [5]; ;
  1. Byrd Polar and Climate Research Center, The Ohio State University, Columbus, Ohio, USA, Department of Microbiology, The Ohio State University, Columbus, Ohio, USA
  2. School of Oceanography, University of Washington, Seattle, Washington, USA
  3. Department of Microbiology, The Ohio State University, Columbus, Ohio, USA
  4. Ronin Institute, Montclair, New Jersey, USA
  5. Byrd Polar and Climate Research Center, The Ohio State University, Columbus, Ohio, USA, Department of Microbiology, The Ohio State University, Columbus, Ohio, USA, Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, Ohio, USA, Center of Microbiome Science, The Ohio State University, Columbus, Ohio, USA

This study explores viral community structure and function in remote and extreme Arctic environments, including subzero brines within marine layers of permafrost and sea ice, using a modern viral ecogenomics toolkit for the first time. In addition to providing foundational data sets for these climate-threatened habitats, we found evidence that the viruses had habitat specificity, infected dominant microbial hosts, encoded host-derived metabolic genes, and mediated horizontal gene transfer among hosts. These results advance our understanding of the virosphere and how viruses influence extreme ecosystems. More broadly, the evidence that virally mediated gene transfers may be limited by host range in these extreme habitats contributes to a mechanistic understanding of genetic exchange among microbes under stressful conditions in other systems.

Sponsoring Organization:
USDOE
OSTI ID:
1633382
Alternate ID(s):
OSTI ID: 1816606
Journal Information:
mSystems, Journal Name: mSystems Journal Issue: 3 Vol. 5; ISSN 2379-5077
Publisher:
American Society for MicrobiologyCopyright Statement
Country of Publication:
United States
Language:
English

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