1. Molecular mechanism of how diapause hormone acts on developing ovaries in order to induce embryonic diapause of the silkworm, Bombyx mori
2. Molecular mechanism of how embryonic diapause of B. mori is initiated by diapause hormone signaling
3. Molecular mechanism of how low temperatures such as 5℃ terminate diapause of B. mori
4. Development of long-term preservation procedure of individuals using diapause-related genes