Editing Trousseau (grape) (section)

==History and pedigree==
Trousseau originated in eastern France where it was once widely cultivated, and [[DNA]] profiling has indicated that the variety has a parent-offspring relationship with [[Savagnin]], and that it is a sibling to [[Chenin blanc]] and [[Sauvignon blanc]].<ref name="Wine Grapes"/> DNA profiling has likewise shown that Trousseau has been cultivated on the Iberian Peninsula for at least 200 years under several different names, including Bastardo, but it is unknown how it came to be introduced there.

[[Trousseau gris]] is a white [[mutation (wine)|mutation]] of Trousseau Noir, occasionally found in Jura and once common in California under the name 'Gray Riesling'.

[[Genouillet]] is the result of a cross between [[Gouais blanc]] (Heunisch) and Bastardo.<ref name="VIVC"/>

In 1938 [[Harold Olmo]] used Trousseau to pollinate the ''[[Vitis rupestris]]'' hybrid [[Alicante Ganzin]] to produce the [[Royalty (grape)|Royalty]] variety.

Bastardo was crossed with the Georgian variety [[Saperavi]] to produce the Bastardo Magarachskii variety used in the [[Ukrainian wine|Crimea]].