| Budget Amount *help |
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
Metazoans occasionally switch their mode of reproduction on the basis of environmental changes, life cycle phase, or both. However, the mechanisms underlying the switch from an asexual to a sexual mode of reproduction and vice versa are poorly understood. We established an assay system for sexualization in the planarian Dugesia ryukyuensis. In this assay system, asexual worms were stimulated to develop hermaphroditic reproductive organs by being fed sexually mature planarians. This means that sexually mature planarians contain sex-inducing substances. In the current study, using this assay system, we suggested a mechanism involved in the biosynthesis of a sex-inducing substance.
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