Discovery of Cucumis melo endornavirus by deep sequencing of human stool samples in Brazil

Virus Genes. 2019 Jun;55(3):332-338. doi: 10.1007/s11262-019-01648-0. Epub 2019 Mar 26.

Abstract

The nearly complete genome sequences of two Cucumis melo endornavirus (CmEV) strains were obtained using deep sequencing while investigating fecal samples for the presence of gastroenteritis viruses. The Brazilian CmEV BRA/TO-23 (aa positions 116-5027) and BRA/TO-74 (aa positions 26-5057) strains were nearly identical to the reference CmEV CL-01 (USA) and SJ1 (South Korea) strains, showing 97% and 98% of nucleotide and amino acid identity, respectively. Endornaviruses are not known to be associated with human disease and their presence may simply reflect recent dietary consumption. Metagenomic analyses offered an opportunity to identify for the first time in Brazil a newly described endornavirus species.

Keywords: Endornavirus; Gastroenteritis; Metagenomic; Plant viruses; Virus discovery.

MeSH terms

  • Brazil
  • Cucumis melo / virology*
  • Genome, Viral / genetics*
  • Humans
  • Metagenomics
  • Molecular Sequence Annotation
  • Phylogeny
  • Plant Diseases / genetics*
  • Plant Diseases / virology
  • RNA Viruses / genetics*
  • RNA Viruses / pathogenicity
  • Sequence Analysis, DNA