First report of Grapevine Pinot gris virus in Canada
In Canada, a preliminary survey has been conducted in Ontario, to verify the possible presence of Grapevine Pinot gris virus (Trichovirus, GPGV). In 2014 and 2015, 77 samples were collected from 10 vineyard blocks located in the main grape-production region of Ontario. Using RT-PCR, GPGV was detected in 11 samples collected from cvs. ‘Syrah’, ‘Cabernet Franc’, ‘Riesling’, and ‘Vidal blanc’ in 5 vineyard blocks. Further molecular tests (sequencing, next generation sequencing) were carried out and confirmed the identity of the virus in the tested samples. This is the first time that GPGV is detected in Canada. It is noted that further research is needed to investigate the origin, distribution, genetic diversity, and economic impact of GPGV.
Sources
Xiao H, Shabanian M, McFadden-Smith W, Meng B (2016) First report of Grapevine Pinot gris virus in commercial grapes in Canada. Plant Disease 100(5), p 1030.