Affiliation: | (1) Department of Molecular Genetics, National Institute of Agrobiological Resources, Tsukuba, Ibaraki, 305, Japan;(2) Department of Bioproduction Science, Faculty of Horticulture, Chiba University, Matsudo, Chiba, 271, Japan;(3) Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, 060, Japan |