The white grape variety comes from France. Synonyms are Caca d'Oie, Cacabois, Cacabouet, Persan Blanc (but it is not a colour mutation of the red variety Persan) and Saint-Péray. Although synonyms seem to indicate this, it should not be confused with the Grosse Jacquère (no longer cultivated) or Molette varieties. According to DNA analyses carried out in 2012, it is probably a natural cross between Gouais Blanc x Grain. However, this is based on only 20-DNA markers (see Molecular genetics). In addition, a parent-offspring relationship with the Italian variety Avanà (Hibou Noir in Savoy) was found. The medium to late-maturing vine is susceptible to both types of mildew. It is cultivated at the southern end of the Lac du Bourget in Savoy. However, no stock was reported in 2010.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012