Metatranscriptomic analysis identifies different viral-like sequences in two neotropical Mansoniini mosquito species

Virus Res. 2021 Aug:301:198455. doi: 10.1016/j.virusres.2021.198455. Epub 2021 May 17.

Abstract

Mosquitoes interact with a wide range of viruses including both arboviruses and insect-specific viruses. This study aimed to characterize the RNA viruses that are interacting with Mansonia wilsoni and Coquillettidia hermanoi mosquito species. The total RNA extracted from mosquito pools were sequenced on a Ion torrent platform. Viral contigs were identified against viral databases and their evolutionary relationship were reconstructed. We identified a total of 107 viral sequences, 11 of which were assigned as endogenous viral elements, and at least six known viral families were identified. Phylogenetic reconstructions were performed for 4 viral families. All Mansoniini viruses investigated through phylogenetic analysis are closely related to insect-specific viruses found in other mosquito species although with considerable divergence at the amino acid level, suggesting that we have detected new viral lineages. This study enhanced our understanding about the virome of two sylvatic Mansoniini mosquitoes.

Keywords: Insect-specific viruses; Mosquitoes; RNA virus; RNA-seq; Virome.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Culicidae*
  • Humans
  • Phylogeny