The #GRBV genome is circular, single-stranded DNA with 8 ORFs and an unusual twist—spliced transcripts!
This boosts its coding power, rare for #geminiviruses.

www.microbiologyresearch.org/content/jour...

#PlantVirology #GRBD #grapevine

Association of a DNA Virus with Grapevines Affected by Red Blotch Disease in California | Phytopathology® ABSTRACT In the Napa Valley of California, vineyards of ‘Cabernet Franc’ (CF) clone 214, ‘Cabernet Sauvignon’ clone 337, and ‘Zinfandel’ clone 1A (Z1A) with grapevines exhibiting foliar symptoms of re...

#GRBV causes Grapevine Red Blotch Disease (GRBD), first noticed in California in the 2000s 🍷
Red blotches on leaves & delayed ripening were key signs.
It was confirmed as a new virus in 2012–2018.

Rwahnih et al., 2013: doi.org/10.1094/PHYT...

#PlantVirology #GRBD