Grapevine leafroll-associated virus 2

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Grapevine leafroll-associated virus 2 (GLRaV-2)

The virus, like several others, is associated with the grapevine leafroll disease which affects grape yield and quality world-wide. The symptoms of this disease include downward rolling of the leaves, reddening (red grapes) or chlorosis (white grapes) on the leaves and limited root groth.

Transmission by grafting, mealybugs and soft scale has been reported for the different viruses. Unlike other grapevine leafroll viruses, GLRAV-2 is a member of the genus Closterovirus and is closely related to Beet yellows virus, Beet yellow stunt virus and Citrus tristeza virus.