1. UMR Sciences pour l'Œnologie, INRA Campus SupAgro, F–34060 Montpellier, France (C.G., N.T., S.V., C.V., J.-M.S., J.-P.M., V.C., A.A.); UMR Diversité et Adaptation des Plantes Cultivées 1097, INRA Campus SupAgro, F–34060 Montpellier, France (L.T., A.F.-L.); and Zurich Basel Plant Science Center, University of Zurich, Plant Biology, CH–8008 Zurich, Switzerland (M.K.)