Badnaviruses of Sweet Potato: Symptomless Coinhabitants on a Global Scale.

ABSTRACT: Sweet potato is among the most important root crops worldwide, particularly in developing countries, and its production is affected severely by a variety of virus diseases. During the last decade, a number of new viruses have been discovered in sweet potatoes through next-generation sequencing studies. Among them are viruses belonging to the genus Badnavirus and collectively assigned to the species sweet potato pakakuy virus (SPPV). We determined the complete genome sequence of two SPPV isolates and show the ubiquitous presence of similar viruses in germplasm and field material from around the globe. We show that SPPV is not integrated into the sweet potato genome, occurs only at extremely low titers, and is efficiently transmitted through seeds and cuttings. They are unaffected by virus e

SUBMITTER: Kreuze JF 

PROVIDER: S-EPMC7145414 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature