The Müller-Thurgau grape variety is a cross between white grape varieties, created in 1882 by the Swiss Hermann Müller, a native of Thurgau, whilst working on genetic improvement of vines studies, between 1876 and 1891, at the German Institute of Geisenheim and concluded in Thurgau towards the end of the century. Until a few years ago it was believed that the vines were starting Riesling and Sylvaner, but recent DNA studies suggested that the second grape was Chasselas. The grape variety Müller-Thurgau is widespread in Europe, especially in Germany, Switzerland and Italy, and was also implanted in oenology emerging countries such as New Zealand. In Italy it is grown in almost all regions, but the most important cultivation are in Trentino South-Tyrol, Friuli-Venezia Giulia and Veneto.