In grapevines, only the genus (genus) Vitis is of importance for viticulture. It is divided into the two subgenera Vitis subg. Euvitis (60 species) and Vitis subg. Muscadinia (1 species). Vitis subg. Euvitis is divided into a European, an American and an Asian group according to geographical occurrence. The latter includes all wild vines originating from Asia with around 30 subspecies. Several new subspecies have been described from China in recent years. The most important for viticulture are
These are mainly found in China, Japan and Korea. Due to their high resistance to the hardest frosts down to minus 35 °Celsius and above, they are of interest for new cultivars. The DNA structure of Asian vines consists of 19 pairs of chromosomes (2 x 19 = 38), which is why they can be crossed with all European vines (Vitis vinifera) and American vines (e.g. Vitis aestivalis, Vitis labrusca, Vitis riparia, Vitis rupestris) without any problems.
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Thorsten Rahn
Restaurantleiter, Sommelier, Weindozent und Autor; Dresden