“…Current knowledge on nucleotide sequence allowed PPV isolates to be grouped into ten distinct strains (D, M, EA, C, Rec, T, W, An, CR, and CV). PPV-D (Dideron) was originally isolated from apricot, while PPV-M (Marcus) was originally characterized on peach (Kerlan and Dunez, 1979). Based on their serological and molecular properties, the two isolates have been confirmed to represent two distinct strains (Candresse et al, 1998).…”