Chlorophyll varlegation in Vitis species was examined In F1 and S1 populations. A single recessive gene is proposed to account for the occurence of 25 percent variegated seedlings in both F1 and S1 populations. Variegation was not lethal and might be useful in wine grape breeding (If associated with inactive polyphenol oxldase) and for its ornamental value. This trait is one of very few seedling traits trider monogenic control that might be useful in genetic studies of grape