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Molecular characterization of two prunus necrotic ringspot virus isolates from Canada
Authors:Cui Hongguang  Hong Ni  Wang Guoping  Wang Aiming
Affiliation:(1) Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford St., London, ON, N5V 4T3, Canada;(2) National Key Laboratory of Agromicrobiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, People’s Republic of China;
Abstract:
We determined the entire RNA1, 2 and 3 sequences of two prunus necrotic ringspot virus (PNRSV) isolates, Chr3 from cherry and Pch12 from peach, obtained from an orchard in the Niagara Fruit Belt, Canada. The RNA1, 2 and 3 of the two isolates share nucleotide sequence identities of 98.6%, 98.4% and 94.5%, respectively. Their RNA1- and 2-encoded amino acid sequences are about 98% identical to the corresponding sequences of a cherry isolate, CH57, the only other PNRSV isolate with complete RNA1 and 2 sequences available. Phylogenetic analysis of the coat protein and movement protein encoded by RNA3 of Pch12 and Chr3 and published PNRSV isolates indicated that Chr3 belongs to the PV96 group and Pch12 belongs to the PV32 group.
Keywords:
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