Viruses (2022) 14 (10 - 2297)

Dariel Cabrera Mederos, Humberto Debat, Carolina Torres, Orelvis Portal, Margarita Jaramillo Zapata, Verónica Trucco, Ceferino Flores, Claudio Ortiz, Alejandra Badaracco, Luis Acuña, Claudia Nome, Diego Quito-Avila, Nicolas Bejerman, Onias Castellanos Collazo, Aminael Sánchez-Rodríguez and Fabián Giolitti (2022)
An unwanted association: The threat to papaya crops by a novel potexvirus in Northwest Argentina
Viruses 14 (10 - 2297)
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 symptoms. Papaya virus X (PapVX) was found only in the NW region of Argentina. This prevalence could be associated with a recent emergence or adaptation of this virus to papaya in NW Argentina.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
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Database assignments for author(s): Claudia Fernanda Nome, Diego F. Quito-Avila, Nicolas Bejerman, Fabián Giolitti

Research topic(s) for pests/diseases/weeds:
identification/taxonomy

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Papaya virus X	Papaya (Carica papaya)	Argentina