1. Division for Sex Differentiation (M.K., Y.K.-F., H.O., K.M., T.B., Y.Sh., N.S., Y.Su., K.-i.M.), Center for Transgenic Animals and Plants, National institute for Basic Biology, National Institutes of Natural Sciences, Okazaki 444-8787, Japan
2. Department of Molecular Biology (K.M., T.B., Y.Sh., K.-i.M.), Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
3. Departments of Physiological Chemistry (Y.Su.), Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
4. Systems Biosciences for Drug Discovery (Y.O.), Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
5. Laboratory of Morphodiversity (R.K.), National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki 444-8585, Japan
6. Department of Anatomy I (A.I.K., T.Se.), School of Medicine, Fujita Health University, Toyoake 470-1192, Japan
7. Laboratory of Neurochemistry (T.Sa.), Center for Transgenic Animals and Plants, National institute for Basic Biology, National Institutes of Natural Sciences, Okazaki 444-8787, Japan
8. Department of Mental Retardation and Birth Defect Research (K.K.), National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8502, Japan
9. Laboratory for Vertebrate Body Plan (S.A.), Center for Developmental Biology, RIKEN, Kobe 650-0047, Japan