1. Laboratory of Molecular Plant Biology, Stazione Zoologica, Villa Comunale, I‐80121 Naples, Italy,
2. DNA Plant Technology, 6701 San Pablo Avenue, Oakland, CA 94608, USA,
3. Seminis Vegetable Seeds, Inc., 37437 State Highway 16, Woodland, CA 95695, USA, and
4. CNRS/ENS FRE2433, Organismes Photosynthétiques et Environnement, Département de Biologie, Ecole Normale Supérieure, 46 Rue d'Ulm, 75230 Paris Cedex 05, France