Wine grape still carries molecular memory of its ancestry after 400 years, study finds

About 400 years ago, a cross between cabernet franc and sauvignon blanc gave birth to cabernet sauvignon. Today, cabernet sauvignon is the world's most-planted wine grape, dominating vineyards from Napa to Bordeaux. New research from the University of California, Davis, reveals that the grape still carries a kind of gene memory of its parents.

source https://phys.org/news/2025-11-wine-grape-molecular-memory-ancestry.html