| Budget Amount *help |
¥124,930,000 (Direct Cost: ¥96,100,000、Indirect Cost: ¥28,830,000)
Fiscal Year 2021: ¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
Fiscal Year 2020: ¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
Fiscal Year 2019: ¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
Fiscal Year 2018: ¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
Fiscal Year 2017: ¥37,050,000 (Direct Cost: ¥28,500,000、Indirect Cost: ¥8,550,000)
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| Outline of Final Research Achievements |
Teleost fish are unique among vertebrates in that their sex-specific phenotypes, including behaviors, are quite labile and can even be reversed as adults. This indicates that the fish brain can transition from one end of the sexual spectrum to the other throughout their lifetime. In medaka (Oryzias latipes), we recently identified a group of neurons in the brain region implicated in mating behavior that appear and disappear in a reversible manner in response to changes in the adult sex steroid milieu. The results of this study strongly suggest that these neurons underpin the mechanisms that allow the fish brain (mating behavior pattern) to transition on the sexual spectrum and also revealed part of the molecular and cellular basis of these mechanisms.
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