Abstract
Grapevine Pinot gris virus (GPGV) is a new trichovirus identified in grapevine plants showing symptoms of chlorotic mottling and leaf deformations (GLMD: grapevine leaf mottling and deformation). The virus and/or the disease has been detected in different countries around the world although its association with symptoms and cultivar susceptibility are not deeply explored. GLMD is reproduced on vine indicators by grafting and GPGV is transmitted to healthy vines by the mite Colomerus vitis. However, the recent detection of GPGV on two herbaceous hosts makes the epidemiology of this virus more complex. Different studies suggest that GPGV genome variants exist, some of which are able to elicit GLMD on grapevine. As such GPGV represents an interesting candidate for the study of plant/virus interactions in grapevine. GPGV is a grapevine-emerging virus not listed in regulations for production of grapevine propagation materials, whose testing is recommended.
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