Tempranillo in the Penedès, Navarra and Valdepeñas regions. Tempranillo is known under a number of local synonyms in different regions of Spain: "Cencibel" and "Tinto Fino" are used in several regions, and it is known as "Tinta del País" in Ribera del Duero and the surrounding area, "Tinta de Toro" in Toro, "Ull de llebre" in Catalonia, and "Morisca" in Extremadura. The grape plays a role in the production of wines in two regions of Portugal, central Alentejo and Douro. In Alentejo Central it is known as Aragonez and used in red table wine blends of variable quality, while in the
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