The red grape variety (also ouchette) originates from France. According to DNA analyses carried out in 2012, it is a presumably natural cross between Gouais Blanc x Chatus. However, this is based on only 20 DNA markers (see molecular genetics). Incidentally, the Cirené de Romans (Sérénèze de Voreppe) variety was also created with the same parents. Onchette used to be widespread in the Vallée du Drac in the Département Isère in south-eastern France. The almost extinct variety was replanted in the commune of Prébois (near Grenoble) as part of a revitalisation programme. However, no populations were recorded in 2016 (Kym Anderson statistics).
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Andreas Essl
Autor, Modena