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Ecogenomics of virophages and their giant virus hosts assessed through time series metagenomics (Journal Article) | OSTI.GOV

  • ️Wed Oct 11 2017

DOE PAGES® Journal Article: Ecogenomics of virophages and their giant virus hosts assessed through time series metagenomics

Journal Article · Wed Oct 11 00:00:00 EDT 2017 · Nature Communications

Chan, Leong-Keat [2]; Egan, Rob [2]; Malmstrom, Rex R. [2]; McMahon, Katherine D. [3]; Sullivan, Matthew B. [4]


  1. The Ohio State Univ., Columbus, OH (United States). Dept. of Microbiology
  2. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States)
  3. Univ. of Wisconsin, Madison, WI (United States). Dept. of Bacteriology. Dept. of Civil and Environmental Engineering
  4. The Ohio State Univ., Columbus, OH (United States). Dept. of Microbiology. Dept. of Civil, Environmental and Geodetic Engineering

Virophages are small viruses that co-infect eukaryotic cells alongside giant viruses (Mimiviridae) and hijack their machinery to replicate. While two types of virophages have been isolated, their genomic diversity and ecology remain largely unknown. Here we use time series metagenomics to identify and study the dynamics of 25 uncultivated virophage populations, 17 of which represented by complete or near-complete genomes, in two North American freshwater lakes. Taxonomic analysis suggests that these freshwater virophages represent at least three new candidate genera. Ecologically, virophage populations are repeatedly detected over years and evolutionary stable, yet their distinct abundance profiles and gene content suggest that virophage genera occupy different ecological niches. Co-occurrence analyses reveal 11 virophages strongly associated with uncultivated Mimiviridae, and three associated with eukaryotes among the Dinophyceae, Rhizaria, Alveolata, and Cryptophyceae groups. Together, these findings significantly augment virophage databases, help refine virophage taxonomy, and establish baseline ecological hypotheses and tools to study virophages in nature.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Science Foundation (NSF); Gordon and Betty Moore Foundation (United States)
Grant/Contract Number:
AC02-05CH11231; MCB-0702395; DEB-1344254; DEB-1440297; OCE-1536989; GBMF #3790
OSTI ID:
1459396
Journal Information:
Nature Communications, Vol. 8; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

Cited by: 67 works

Citation information provided by
Web of Science


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Viva lavidaviruses! Five features of virophages that parasitize giant DNA viruses journal March 2019
Virophages of Giant Viruses: An Update at Eleven journal August 2019
Metagenomics detection and characterisation of viruses in faecal samples from Australian wild birds journal June 2018
Phage-centric ecological interactions in aquatic ecosystems revealed through ultra-deep metagenomics text January 2019
Taxonomic assignment of uncultivated prokaryotic virus genomes is enabled by gene-sharing networks journal May 2019
Charting the diversity of uncultured viruses of Archaea and Bacteria journal December 2019
Metagenomic Analysis of Virus Diversity and Relative Abundance in a Eutrophic Freshwater Harbour journal August 2019
Charting the diversity of uncultured viruses of Archaea and Bacteria journal December 2019
Deciphering viral presences: two novel partial giant viruses detected in marine metagenome and in a mine drainage metagenome journal April 2018
Freshwater carbon and nutrient cycles revealed through reconstructed population genomes journal January 2018
Archaeal Viruses from High-Temperature Environments journal February 2018
Mimiviridae: An Expanding Family of Highly Diverse Large dsDNA Viruses Infecting a Wide Phylogenetic Range of Aquatic Eukaryotes journal September 2018
Deciphering viral presences: two novel partial giant viruses detected in marine metagenome and in a mine drainage metagenome journal April 2018
Genome-Resolved Metagenomics Extends the Environmental Distribution of the Verrucomicrobia Phylum to the Deep Terrestrial Subsurface journal December 2019
Phage-centric ecological interactions in aquatic ecosystems revealed through ultra-deep metagenomics journal October 2019
Viva lavidaviruses! Five features of virophages that parasitize giant DNA viruses journal March 2019
Diversity, evolution, and classification of virophages uncovered through global metagenomics journal December 2019
Capsid protein structure, self-assembly, and processing reveal morphogenesis of the marine virophage mavirus journal June 2018
Defective viral genomes are key drivers of the virus–host interaction journal June 2019
Genome‐resolved viral and cellular metagenomes revealed potential key virus‐host interactions in a deep freshwater lake journal September 2019
Hidden diversity of soil giant viruses journal November 2018
Metagenomic Analysis of the Diversity of DNA Viruses in the Surface and Deep Sea of the South China Sea journal August 2019
Viruses of Eukaryotic Algae: Diversity, Methods for Detection, and Future Directions journal September 2018
Diversity, evolution, and classification of virophages uncovered through global metagenomics journal December 2019
Capsid protein structure, self-assembly, and processing reveal morphogenesis of the marine virophage mavirus journal June 2018
Coupled laboratory and field investigations resolve microbial interactions that underpin persistence in hydraulically fractured shales journal June 2018
Freshwater carbon and nutrient cycles revealed through reconstructed population genomes journal January 2018
Defective viral genomes are key drivers of the virus–host interaction journal June 2019
Hidden diversity of soil giant viruses journal November 2018
Assessing the viral content of uncultured picoeukaryotes in the global‐ocean by single cell genomics journal September 2019
Coupled laboratory and field investigations resolve microbial interactions that underpin persistence in hydraulically fractured shales journal June 2018
Phage-specific metabolic reprogramming of virocells journal January 2020
CAMISIM: simulating metagenomes and microbial communities journal February 2019
Correction to: Phage-centric ecological interactions in aquatic ecosystems revealed through ultra-deep metagenomics journal March 2020
Virophages of Giant Viruses: An Update at Eleven journal August 2019
Phage-specific metabolic reprogramming of virocells journal January 2020
Prokaryotic and viral community structure in the singular chaotropic salt lake Salar de Uyuni journal February 2019

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