EPPO Global Database

EPPO Reporting Service no. 02 - 2007 Num. article: 2007/031

Molecular characterization and detection of Peach mosaic virus

Peach mosaic disease was first observed in 1931 in Texas and then in Colorado and California (US). The disease has also been reported from Mexico. Peach mosaic virus (PcMV – EPPO A1 List) was identified as its causal agent. PcMV is serologically related to Cherry mottle leaf virus (CMLV) but these are considered to be distinct viruses, as they cause distinct diseases and have different host range and vectors. Molecular studies were carried out in Canada and confirmed that PcMV and CMLV are distinct viruses which belong to the genus Trichovirus. However, both PcMV and CMLV present some unique features among this genus which exist in other genera such as Allexivirus, Carlavirus and Vitivirus. During these studies, a reliable and specific RT-PCR assay was developed for the detection of Peach mosaic virus, which could provide a useful tool in certification schemes.


James D, Varga A, Croft H, Rast H, Thompson D, Hayes S (2006) Molecular characterization, phylogenetic relationships and specific detection of Peach mosaic virus. Phytopathology 96(2), 137-144.