1. Albrecht von Haller Institut für Pflanzenwissenschaften, Untere Karspüle 2, Georg August Universität Göttingen, 37073 Göttingen, Germany (A.T., M.H., I.L., C.G.)
2. and University of California (Berkeley)/United States Department of Agriculture Plant Gene Expression Center, 800 Buchanan Street, Albany, California 98710 (P.H.Q.)