| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
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| Outline of Final Research Achievements |
Sex-determining genes can be used for sex identification, providing critical information for genetic breeding in aquaculture. Since identifying them is still challenging for most fish, we are exploring strategies using multiple approaches. In this study, we show strong evidence that the combination of Hsd17b1 alleles determines sex by modulating endogenous estrogen levels in three Seriola species. Our findings strongly support the hypothesis of steroid-induced sex determination in fish, which has been introduced more than 50 years ago but has never been rigorously tested.
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