1. Laboratory of Plant Breeding, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi-shi, Ishikawa 921-8836, Japan
2. Laboratory of Food Microbiology, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi-shi, Ishikawa 921-8836, Japan
3. Laboratory of Crop Evolution, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan