Article
Genetic variability and evolutionary implications of RNA silencing suppressor genes in RNA1 of sweet potato chlorotic stunt virus isolates infecting sweetpotato and related wild species.
PloS one - 1 Jan 2013
Tugume Arthur K, Amayo Robert, Weinheimer Isabel, Mukasa Settumba B, Rubaihayo Patrick R, Valkonen Jari P T
Abstract excerpt
BACKGROUND: The bipartite single-stranded RNA genome of Sweet potato chlorotic stunt virus (SPCSV, genus Crinivirus; Closteroviridae) encodes a Class 1 RNase III (RNase3), a putative hydrophobic protein (p7) and a 22-kDa protein (p22) from genes located in RNA1. RNase3 and p22 suppress RNA silencing, the basal antiviral defence mechanism in plants. RNase3 is sufficient to render sweetpotato (Ipomoea batatas)...
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