Abstract
Single-strand conformation polymorphism (SSCP) and low-stringency single specific primer (LSSP)-PCR were assessed for suitability and reliability in genotyping of Plum pox virus (PPV) isolates. Examined PPV isolates included 16 PPV-D, 12 PPV-M, and 14 PPV-Rec isolates collected in Czech Republic. The analysis was performed on the helper component protease (HC-Pro) region of the PPV genome. SSCP and LSSP-PCR allowed the differentiation of PPV strain, but SSCP was not able to distinguish isolates within the same strain. The individual genotyping of each PPV isolate was obtained by LSSP-PCR. Nevertheless, both SSCP and LSSP-PCR techniques are suitable for preliminary screening of genetic variability of plant RNA viruses.
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