The Peach rosette mosaic virus (PRMV) is a
plant pathogen of the genus Nepovirus, and has been designated
as a controlled quarantine virus in Korea. In this
study, a specific reverse transcription (RT)-PCR marker
set, nested PCR marker set, and modified-plasmid positive
control were developed to promptly and accurately diagnose
PRMV at plant-quarantine sites. The final selected
PRMV-specific RT-PCR marker was PRMV-N10/C70
(967 bp), and the nested PCR product of 419 bp was finally
amplified. The modified-plasmid positive control, in which
the SalI restriction-enzyme region (GTCGAC) was inserted,
verified PRMV contamination in a comparison with
the control, enabling a more accurate diagnosis. It is
expected that the developed method will continuously
contribute to the plant-quarantine process in Korea.