Journal of Phytopathology (2007) 155, 409-415

M. Chikh Ali, T. Maoka and K.T. Natsuaki (2007)
The occurrence and characterization of new recombinant isolates of PVY displaying shared properties of PVY^NW and PVY^NTN
Journal of Phytopathology 155 (7-8), 409-415
Abstract: Isolates of Potato virus Y (PVY), collected in Syria, induced vein necrosis in tobacco but reacted to PVY^O monoclonal antibody, and were therefore classified as PVY^NW (or PVY^N:O). The possible recombinant points within the genome were checked using a previously reported multiplex RT-PCR. These isolates were categorized in two groups according to recombinant points. Isolates with one recombinant point at the HC-Pro/P3, identical to previously reported PVY^NW (or PVY^N:O), were designated as group 1. However, the majority of Syrian PVY isolates showed two recombinant points at both HC-Pro/P3 and 6K2/NIa, revealing a new genomic recombination pattern that had never been reported for PVY^NW (or PVY^N:O), hereafter referred to as group 2. Further characterizations showed that isolates of group 2 had an additional recombinant point at the N-terminal of the coat protein gene (CP) of their genome. Based on the bioassay on tobacco, serological and molecular studies, these isolates showed shared characteristics of both PVY^NW and the recombinant PVY^NTN, making it difficult to include them in any of these variants. We propose them as new isolates of PVY^N strain, and label them PVY^SYR (SYR is from Syria, the country of origin).
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Mohamad Chikh Ali, Keiko T. Natsuaki, Tetsuo Maoka

Research topic(s) for pests/diseases/weeds:
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Potato virus Y		Syria