Affiliation: | (1) Department of Molecular Biology, National Institute of Agrobiological Resources, 305 Tsukuba, Japan;(2) Present address: Faculty of Science, Toho University, 274 Funabashi, Japan;(3) Present address: Faculty of Agriculture, Kyoto University, 606 Kyoto, Japan;(4) Present address: Hokuriku National Agricultural Experiment Station, 943-01 Joetsu, Japan |