First report of Grapevine Pinot gris virus in China
In China, a survey to assess the presence of Grapevine Pinot gris virus (Trichovirus, GPGV) was carried out in 2014. 36 samples (dormant canes) were collected from the Chinese provinces of Liaoning (29 samples), Beijing (5), and Zhejiang (2). These samples included 24 different cultivars, in which 14 cultivars had showed chlorotic mottling. Molecular tests (PCR) showed that 15 samples (out of 36) tested positive for GPGV. The PCR products obtained from ‘Red Globe’ (symptomless), ‘Merlot’ (symptomless), ‘Muscat Hamburg’ (symptomless), ‘Cabernet Franc’ (symptomatic), and ‘Moldova’ (symptomatic) were sequenced and showed high similarity when compared with 7 previously reported GPGV genomes. During grafting experiments, it was also found that the cv. ‘Beta’ which is widely used as a rootstock in China may be susceptible to GPGV infection. This is the first time that GPGV is reported from China.
The situation of Grapevine Pinot gris virus in China can be described as follows: Present, first found in 2014 in several grapevine cultivars.
Sources
Fan XD, Dong YF, Zhang ZP, Ren F, Hu GJ, Li ZN, Zhou J (2016) First report of Grapevine Pinot gris virus in grapevines in China. Plant Disease 100(2), p 540.