2023 Fiscal Year Final Research Report
Theoretical modeling integrating physiological mechanism and adaptive evolution of sexuality
| Project/Area Number |
19K06838
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 45040:Ecology and environment-related
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| Research Institution | Tokyo Woman's Christian University (2020-2023)
Nara Women's University (2019) |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2024-03-31
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| Keywords | 性表現多様性 / 至近要因 / 性決定様式 / bet hedging / 有性生殖 / 無性生殖 / 発生多型 / 共生 |
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| Outline of Final Research Achievements |
The endocrinological, physiological, and molecular biological mechanisms of sex differentiation/sex determination in animals are rapidly becoming clear. On the other hand, regarding ultimate factors, many studies have focused on sex differences in the effects of the environment on the fitness. I have advanced a new approach that bridges between physiology/molecular biology and ecology/behavioral biology. This study concentrated on three issues: [1] genetic sex determination and environmental sex determination, [2] switching from asexual to sexual reproduction, and [3] evolutionary modeling of diverse sexual expressions. I aimed for a new modeling of evolutionary biology to understand not only reproductive biology but social behavior and environmental responses.
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| Free Research Field |
数理生物学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では、「動物の性表現を決める生理的・分子的メカニズムの研究と野外での自然淘汰や性淘汰を受けた進化とが、どのように統合できるか？」、そして「多様な性表現の統一的理解は可能か？」という２つの問いに応えることを目指した。
遺伝子ネットワークや発生的・生理的メカニズムを考慮したモデルの上に、自然淘汰や性淘汰がはたらくときに、どのような形質や環境応答、社会形態が進化するかを探索するという、新しいアプローチを打ち立てる。生物の社会的形質、環境応答などを理解するための生命科学の基盤を確立することができると見込んだ。
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