| Budget Amount *help |
¥48,880,000 (Direct Cost: ¥37,600,000、Indirect Cost: ¥11,280,000)
Fiscal Year 2014: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Fiscal Year 2013: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Fiscal Year 2012: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2011: ¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
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| Outline of Final Research Achievements |
We succeeded in inducing sex reversal, ovaries to testes, in gonochoristic tilapia, medaka, zebrafish, carp and rabbitfish through treatment of the fish with an aromatase inhibitor. The results of these studies have been reported in international scientific journals and in public news media via newspapers and Internet news services. The application of this technique will allow control over the sex of fishes in commercial aquaculture. Furthermore, through transcriptome analysis of sex change from ovaries to testes, we identified 21 new genes that are likely to play a role in sexual plasticity. This work has broad importance for understanding the ontogeny and genetics of sexual identity in vertebrate animals.
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