An Unwanted Association: The Threat to Papaya Crops by a Novel Potexvirus in Northwest Argentina.

ABSTRACT: An emerging virus isolated from papaya (Carica papaya) crops in northwestern (NW) Argentina was sequenced and characterized using next-generation sequencing. The resulting genome is 6667-nt long and encodes five open reading frames in an arrangement typical of other potexviruses. This virus appears to be a novel member within the genus Potexvirus. Blast analysis of RNA-dependent RNA polymerase (RdRp) and coat protein (CP) genes showed the highest amino acid sequence identity (67% and 71%, respectively) with pitaya virus X. Based on nucleotide sequence similarity and phylogenetic analysis, the name papaya virus X is proposed for this newly characterized potexvirus that was mechanically transmitted to papaya plants causing chlorotic patches and severe mosaic sympt

SUBMITTER: Cabrera Mederos D 

PROVIDER: S-EPMC9610017 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature