1. Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
2. Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8566, Japan
3. NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo 156-8502, Japan
4. Department of Bioscience, Tokyo University of Agriculture, Tokyo 156-8502, Japan
5. Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Japan