RNA virus diversity highlights the potential biosecurity threat posed by Antarctic krill.

ABSTRACT: Antarctic krill Euphausia superba, one of the most abundant species on the planet, is a keystone species of the Southern Ocean ecosystem. In the present study, we analyzed the RNA virome of Antarctic krill via metatranscription methods. The results showed that only 0.39% (49/12, 558) of the resultant unigenes could be assigned to known viral taxa, which were most similar to 17 known viruses, including nine invertebrate viruses, two vertebrate viruses, three protozoan viruses and three mycoviruses. However, most of the detected viruses possessed low amino acid similarity with counterparts in the viral databases. Penaeus vannamei picornavirus (PvPV; Family Picornaviridae) and covert mortality nodavirus (CMNV; Family Nodaviridae) were the two most abundant viruses in the Antarct

SUBMITTER: Xu T 

PROVIDER: S-EPMC11871207 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature