Gamay from Pinot noir, another Burgundian grape. It was introduced by Amity Vineyards in 1988. In 1991, Rebecca's Vineyard planted Gamay and was one few Oregon vineyards selling the grapes. LaBete winery was the first to make a vineyard designate of Gamay from Rebecca's Vineyard. Since then, Rebecca's Vineyard stopped selling Gamay to those who would only blend into their Pinot Noir for flavor and color enhancement, and to only sell to those who would produce stand alone Gamay. Younger wineries like Division Winemaking Co., who are now the largest producer of Gamay in Oregon, have helped raise awareness and availability
Petite mutation Petite mutation petite (ρ–) is a mutant first discovered in the yeast "Saccharomyces cerevisiae". Due to the defect in the respiratory chain, 'petite' yeast are unable to grow on media containing only non-fermentable carbon sources (such as glycerol or ethanol) and form small colonies when grown in the presence of fermentable carbon sources (such as glucose). The petite phenotype can be caused by the absence of, or mutations in, mitochondrial DNA (termed "cytoplasmic Petites"), or by mutations in nuclear-encoded genes involved in oxidative phosphorylation. A neutral petite produces all wild type progeny when crossed with wild type. petite mutations can