Figure 1: Multiplex PCR with primer pairs PGF/PGR (466 bp), VIRFF1/VIRFR2 (382 bp) and VIRD2S4F716/ VIRD2S4R1036 (320 bp) using DNA extracted from plants. 1: isolates TUNAv1 (O); 2-6: isolates TUNAv2-6 (OV) ; 7: isolates TUNAv7 (V); 8: isolates TUNAv8 (O); 9: isolates TUNAv9 (OV); 10: isolates TUNAv10 (OV); 11: isolates TUNAv11 (O); 12: isolates TUNAv12 (O); 13-28: isolates TUNAv13-28 (OV) ; 29 : isolates TUNAv29 (O) ; 30 : isolates TUNAv30 (O) ; 31 : isolates TUNAv31 (V) ; 32-36 : isolates TUNAv32-36 (OV) ; 37 : isolates TUNAt37 , A. tumefaciens (O); 38 : isolates TUNAv38 (O) ; 39 : isolates TUNAv39 (OV); 40 : isolates TUNAv40 (O); 41-43 : isolates TUNAv41-43 (OV); 44 : isolates TUNAv44 (O); 45-50 : isolates TUNAv45-50 (OV). +: positive control; NC: Negative Control. M: Invitrogen 1kb plus (cat. 10787-018). a-j: sequenced pehA gene strains.