1. Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan;
2. Laboratory of Bioorganic Medical Chemistry and Chemogenomics, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan;
3. Laboratory for Behavioral Genetics, RIKEN Brain Science Institute (BSI), Saitama, Japan; and
4. Laboratory of Fish Biology, Graduate School of Bioagricultural Sciences, Nagoya University, Aichi, Japan