Simplot analysis of the three divergent isolates (PO1, PL3, and CV2) and CLRDV isolates. Full-length sequences, comprising the partial RdRp, IR, and CP regions, were analyzed. The horizontal axis represents the nucleotide distance of the midpoint of the window from the 5' end of the query sequence (1074 nt in CLRDV). The vertical axis represents the percentage of similarity (within a window covering 120 bp). The window was moved through the alignment with a step length of 10 bp.