Reaction of three potato cultivars to potato virus S and alteration of miRNAs and mRNA targets in the resistant genotypes

Abstract

Plant miRNAs are small endogenous noncoding RNAs that regulate gene expression posttranscriptionally by targeting specific mRNAs for cleavage or translational inhibition (Voinnet, 2009). They are involved in plant development and stress responses and certain miRNAs play important roles in antiviral immunity by regulating resistance (R) genes that encode proteins containing nucleotidebinding site (NBS) and leucine-rich repeat (LRR) domains (