Grapevine yellow speckle viroid 2
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Grapevine yellow speckle viroid 2 (GYSVd-2)
This viroid is widespread and closely related to GYSVd-1. Both viroids often do not cause any symptoms, but yellow speckle symptoms might develop along the veins. If both viroids occur together in a plant, mottling and vein banding symptoms can appear.