1. Max Planck Institute of Molecular Plant Physiology, 14476 Golm, Germany (B.U., O.T., H.R., O.E.B., N.P.-R., J.S., J.H., M.C.P., D.S., W.-R.S., Y.G., R.M., D.W., M.S.); and RZPD German Resource Centre for Genome Research, D–14059 Berlin, Germany (A.N., S.M.)