Recent research using DNA profiling has shown that the different Torrontés are genetically closely related but distinct grape varieties, and that Torrontés Riojano, Torrontés Sanjuanino, and Torontel (also known as Moscatel Amarillo) are all separate crossings of Mission (originally reported as Criolla Chica) and Muscat of Alexandria.
Torrontés Mendocino was found to probably be a crossing of Muscat of Alexandria and another, so far unidentified grape variety.
While the Muscat-like qualities of the Torrontés varieties meant that a relationship to Muscat of Alexandria had been expected, the presence of Mission or Criolla Chica in the pedigree was unexpected to the researchers.

For many years it was believed that the Torrontés of South America was the same variety as the Torrontés grape from Galicia in Spain, also known as Albillo Mayor.
This widespread belief was due, in part, to the frequent migration waves of Galician workers that have immigrated to Argentina throughout its history.
Indeed, even wine expert Jancis Robinson, noted as much in her 1986 book on the world's grape varieties.
However, recent DNA evidence shows that there is probably no direct relationship between the Argentine and Spanish Torrontés varieties and more recent editions of Robinson's wine books acknowledge the new findings.

There is also a less common red wine grape called Torrontés, which is also known under the synonyms Tarrantes and Turrundos.
Recent research using DNA profiling has shown that the different Torrontés are genetically closely related but distinct grape varieties, and that Torrontés Riojano, Torrontés Sanjuanino, and Torontel (also known as Moscatel Amarillo) are all separate crossings of Mission (originally reported as Criolla Chica) and Muscat of Alexandria. Torrontés Mendocino was found to probably be a crossing of Muscat of Alexandria and another, so far unidentified grape variety. While the Muscat-like qualities of the Torrontés varieties meant that a relationship to Muscat of Alexandria had been expected, the presence of Mission or Criolla Chica in the pedigree was unexpected to the researchers.
For many years it was believed that the Torrontés of South America was the same variety as the Torrontés grape from Galicia in Spain, also known as Albillo Mayor. This widespread belief was due, in part, to the frequent migration waves of Galician workers that have immigrated to Argentina throughout its history. Indeed, even wine expert Jancis Robinson, noted as much in her 1986 book on the world's grape varieties. However, recent DNA evidence shows that there is probably no direct relationship between the Argentine and Spanish Torrontés varieties and more recent editions of Robinson's wine books acknowledge the new findings.
There is also a less common red wine grape called Torrontés, which is also known under the synonyms Tarrantes and Turrundos.
Torrontés