The grape's true origins were discovered in 1996 with the use of DNA typing at the UC Davis Department of Viticulture and Enology, by a team led by Dr. Carole Meredith. The DNA evidence determined that Cabernet Sauvignon was the offspring of Cabernet franc and Sauvignon blanc and was most likely a chance crossing that occurred in the 17th century. Prior to this discovery, this origin had been suspected from the similarity of the grapes' names and the fact that Cabernet Sauvignon shares similar aromas with both grapes—such as the blackcurrant and pencil box aromas of Cabernet franc and the grassiness of Sauvignon blanc. In 2016 scientists at the UC Davis announced they had sequenced a draft of the whole genome of the Cabernet Sauvignon grape, the first genome of a commercial wine-producing grape to be sequenced.