Institution: | (1) Laboratory of Plant Breeding, Faculty of Agriculture, Tohoku University, 1–1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, 981 Japan Tel. +81–(0)22-717–8651; Fax +81-(0)22–717–8654 e-mail: nabe@bios.tohoku.ac.jp, JP;(2) Graduate School of Biological Science, Nara Institute of Science and Technology, Ikoma, Japan, JP;(3) Research Institute of Seed Production Co., Ltd., Sendai, Japan, JP |