July 31, 1997 Cabernet Sauvignon's Roots Run Both Red and White DNA testing reveals Cabernet Franc and Sauvignon Blanc are likely ancestors Cabernet Sauvignon, king of Napa Valley's best red wines and the backbone of Bordeaux's first growths, may actually be the result of botanical happenstance.
For the full article, check out the new issue of Wine Spectator, on newsstands July 31, 1997.
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