Gamay of the grape in Oregon. Significant new plantings are underway in the Willamette Valley and there's even a festival called I Love Gamay held in nearby Portland. Tasting notes published by the vineyards at Amity, WillaKenzie, Division, Brickhouse, and Methven describe wines that match the basic profiles of Crus Beaujolais. The Gamay name has become attached to other varieties grown in California, which at one time were thought to be the true Gamay. The grape 'Napa Gamay' is now known as Valdeguié, and the name Napa Gamay has not appeared on labels from 2007 onwards. Gamay Beaujolais is considered to
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