1. Center for Biological Resources and Informatics, Tokyo Institute of Technology, 4259-B-62, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
2. National Institute of Agrobiological Sciences (NIAS), 1-2, Ohwashi, Tsukuba 305-8634, Japan
3. Department of Bioengineering, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259-B-40, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan