1. Department of Biological Science; Graduate School of Science and Technology; Kumamoto University; 2-39-1 Kurokami Kumamoto 860-8555 Japan
2. Genetic Strains Research Center; National Institute of Genetics; 1111 Yata Mishima 411-8540 Japan
3. Department of New Frontier Sciences; Graduate School of Science and Technology; Kumamoto University; 2-39-1 Kurokami Kumamoto 860-8555 Japan