1. Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
2. The First Department of Medicine, Wakayama Medical University, Wakayama 841-8509, Japan
3. Department of Applied Genomics, Kazusa DNA Research Institute, 2-6-7 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan
4. Rice Research Institute, Kameda Seika CO., LTD. 3-1-1Kameda-kogyodanchi, Konan, Niigata, Niigata 950-0198, Japan