Tempranillo grown to be considered the state's signature grape. In Oregon, the grape was introduced by Earl Jones of Abacela Vineyards and Winery, in the Umpqua Valley AVA. Their climate (hot during the summer day, and cool overnight) seems to be perfect for the Tempranillo grape. In Australia Tempranillo is grown in the McLaren Vale region, and also North East Victoria. Tempranillo has also been introduced by some wine producers in Thailand. The varietal is extensively grown in Argentina, Chile, and Mexico. In Washington state, Tempranillo was one of the varieties pioneered in the state by Red Willow Vineyard in the
Petite mutation petite negative mutants. Potentially, these yeasts have a different inheritance system in place for their mitchondrial genome than "S. cerevisiae" does. The frequency at which "S. castellii" spontaneously produces petites is similar to that of "S. cerevisiae", with the mitochondrial DNA of those petites being highly altered via deletion and rearrangement. Suppressive petites of "S. cerevisiae" are the most commonly observed spontaneously created mutants, whereas in "S. castellii," the most commonly observed spontaneous mutant is the neutral petite, further leading to speculation that the transference of this mutation differs between species. Petite mutation petite (ρ–) is a mutant first discovered