Durif producers of Durif. The grape can also be found in Israel, Brazil, Argentina, Chile, and Mexico. Confirmed as recently as 1997, old plantings of Durif continued to be used to produce popular wine in the Rutherglen, Victoria region of Australia. Durif is now grown in other wine regions of Australia, such as Riverina and Riverland, with over under cultivation by 2000. DNA fingerprinting has shown that the majority of Petite Sirah plantings in California are actually Durif. Some vineyards were found to be a field blend of Durif and other varieties, such as Mondeuse noire, all labeled as "Petite Sirah".
Petite mutation and exhibit Mendelian 1:1 segregation. Neutral petites (rho–N): Neutral petite when crossed to wild-type, all offspring are wild-type. It has inherited normal mitochondrial DNA from wild-type parent, which is replicated in the offspring. Suppressive petites (rho–S): crosses between petite and wild-type, all offspring are petite, showing "dominant" behavior to suppress wild-type mitochondrial function. Most petite mutants of "S. cerevisiae" are of a suppressive type, and they differ from neutral petite by affecting the wild-type, although both are a mutation in mitochondrial DNA. Mitochondrial genome of yeast will be the first eukaryotic genome to be understood in terms of both structure