Beaujolais nouveau Nouveau-style wines, using various grapes such as Gamay, Zinfandel, Tempranillo, Pinot noir, and even Riesling. Beaujolais nouveau Beaujolais nouveau () is a red wine made from Gamay grapes produced in the Beaujolais region of France. It is the most popular "vin de primeur", fermented for just a few weeks before being released for sale on the third Thursday of November. This "Beaujolais Nouveau Day" used to see heavy marketing, with races to get the first bottles to different markets around the globe. The current release practice is to ship the wine ahead of the third Thursday of November, and release
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