Affiliation: | (1) The Plant Cell Research Institute, 6560 Trinity Court, 94568 Dublin, CA, USA;(2) Present address: GenPharm International, Inc., 2375 Garcia Avenue, 94043 Mountain View, CA, USA;(3) Present address: Department of Biotechnology Research, Pioneer Hi-Bred International, Inc., 7300 N.W. 62nd Avenue, P.O. Box 38, 50131 Johnston, IO, USA |