The white grape comes from France, Synonyms are Caca d'Oie, Cacabois, Cacabouet, Persan Blanc (but it is not a color mutation the red variety Persan ) and Saint-Péray. Despite seemingly suggestive synonyms, it must not with the varieties Grosse Jacquère (no longer cultivated) or Molette be confused. According to done in 2012 DNA analysis it is a presumably natural cross between Gouais blanc x grain. However, this is based on only 20 DNA markers (see below molecular Genetics ). In addition, one was Parent-offspring relationship to the Italian variety Avana (Hibou Noir in Savoy). The medium to late ripening vine is prone to both mildews, It is located at the southern end of Lac du Bourget in Savoy grown. In 2010, however, no inventory was reported.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012