Mondeuse noire 1937 and later developed a white-berried color mutation known as "Helena". Also in the late 20th and early 21st century, it was discovered that some of the plantings of Petite Sirah were actually field blends of true Petite Sirah (Durif) as well as several other varieties including Mondeuse noire. Though the exact relationship is not yet known, DNA analysis has also shown that Mondeuse noire has some relationship to the Savoie wine grape Douce noir which is known as "Charbono" in California and "Bonarda" in Argentina. While Mondeuse noire and Mondeuse blanche are not color mutations of one or the
Gamay is commonly grown in the Niagara Peninsula in Canada, some producers being in the Short Hills Bench, Beamsville Bench and St. David's Bench to mention a few, as well as in Prince Edward County. Chàteau des Charmes in Niagara-on-the-Lake has a regional clone which they discovered, Gamay Noir Droit, which is a recognized mutation. It is also grown successfully by a small number of wineries in Australia to make a range of wines including light bodied red wines suitable for early drinking. Gamay has also been introduced into Oregon's Willamette Valley wine region, a place known for its wines made