Phylogenetic Analyses of Pepper mild mottle virus and Cucumber mosaic virus Isolated from Rorippa palustris Kwon, Sun-Jung; Yoon, Ju-Yeon; Cho, In-Sook; Choi, Seung-Kook; Choi, Gug-Seoun;
During a field survey in 2014, a Rorippa palustris plant showing virus-like symptom was collected from a pepper field in Dangjin in Korea. The collected sample was subjected to examine infection with pepper-infecting viruses. Molecular diagnosis assay showed that the collected R. palustris sample was co-infected with Pepper mild mottle virus (PMMoV) and Cucumber mosaic virus (CMV). This is the first identification of PMMoV from R. palustris and the first report of CMV infection of R. palustris in Korea. To examine phylogenetic positions of the identified PMMoV and CMV isolates, their complete genome sequences of were determined and compared with those of previously reported isolates of the cognate viruses. Phylogenetic analyses revealed the isolates of PMMoV and CMV obtained from R. palustris are closely related to the pepper isolates of the cognate viruses. Our results suggest that R. palustris could act a weed reservoir of PMMoV and CMV.
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