Assignment of virus and antimicrobial resistance genes to microbial hosts in a complex microbial community by combined long-read assembly and proximity ligation

Genome Biol. 2019 Aug 2;20(1):153. doi: 10.1186/s13059-019-1760-x.

Abstract

We describe a method that adds long-read sequencing to a mix of technologies used to assemble a highly complex cattle rumen microbial community, and provide a comparison to short read-based methods. Long-read alignments and Hi-C linkage between contigs support the identification of 188 novel virus-host associations and the determination of phage life cycle states in the rumen microbial community. The long-read assembly also identifies 94 antimicrobial resistance genes, compared to only seven alleles in the short-read assembly. We demonstrate novel techniques that work synergistically to improve characterization of biological features in a highly complex rumen microbial community.

Keywords: Hi-C; Metagenome assembly; Metagenomics; PacBio; Virus-host association.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, N.I.H., Intramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Cattle
  • Clustered Regularly Interspaced Short Palindromic Repeats
  • Drug Resistance, Microbial / genetics*
  • Gene Transfer, Horizontal
  • Genes, Microbial
  • Metagenomics / methods*
  • Microbiota / genetics*
  • Open Reading Frames
  • Prophages / genetics
  • Rumen / microbiology
  • Rumen / virology
  • Sequence Analysis, DNA / methods*
  • Viruses / genetics*
  • Viruses / isolation & purification