Plasma virome of cattle from forest region revealed diverse small circular ssDNA viral genomes

Virol J. 2018 Jan 15;15(1):11. doi: 10.1186/s12985-018-0923-9.

Abstract

Background: Free-range cattle are common in the Northeast China area, which have close contact with farmers and may carry virus threatening to cattle and farmers.

Methods: Using viral metagenomics we analyzed the virome in plasma samples collected from 80 cattle from the forested region of Northeast China.

Results: The virome of cattle plasma is composed of the viruses belonging to the families including Parvoviridae, Papillomaviridae, Picobirnaviridae, and divergent viral genomes showing sequence similarity to circular Rep-encoding single stranded (CRESS) DNA viruses. Five such CRESS-DNA genomes were full characterized, with Rep sequences related to circovirus and gemycircularvirus. Three bovine parvoviruses belonging to two different genera were also characterized.

Conclusion: The virome in plasma samples of cattle from the forested region of Northeast China was revealed, which further characterized the diversity of viruses in cattle plasma.

Keywords: CRESS-DNA virus; Cattle blood; Parvovirus; Virome.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Biodiversity
  • Cattle
  • Cattle Diseases / virology*
  • DNA Viruses / genetics*
  • DNA, Circular*
  • DNA, Viral*
  • Forests
  • Genetic Variation*
  • Genome, Viral
  • High-Throughput Nucleotide Sequencing
  • Metagenome
  • Metagenomics / methods
  • Phylogeny
  • Sequence Analysis, DNA
  • Viral Load*
  • Virus Diseases / veterinary*

Substances

  • DNA, Circular
  • DNA, Viral