2022 Fiscal Year Final Research Report
Analysis of molecular network of gametangium development in the basal land plants
| Project/Area Number |
20K15813
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 44030:Plant molecular biology and physiology-related
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| Research Institution | Ritsumeikan University (2022)
Kobe University (2020-2021) |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | ゼニゴケ / 有性生殖 / 発生 / 形態形成 / 分子進化 |
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| Outline of Final Research Achievements |
During land plant evolution, the sexual reproductive system has been dynamically changed. Recently, studies on the reproductive processes of the model bryophytes Marchantia polymorpha are well progressed. However, it remains unclear the early processes of gametangium development. In this study, I focused on a transcription factor MpBZR3, which could induce gametangium development. Our approaches including transcriptomic analysis and molecular genetics revealed that MpBZR3 has an important function in the gametangium developmental processes. Moreover, it is suggested that MpBZR3 ortholog in other bryophytes has a conserved function.
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| Free Research Field |
植物発生学
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| Academic Significance and Societal Importance of the Research Achievements |
コケ植物の有性生殖に必須の装置である造卵器や造精器といった配偶子器(嚢)の特に初期発生過程は解析が困難で、その分子メカニズムの解明が待たれている。本研究では、転写因子を分子スイッチとして扱うことで人為的に誘導して解析をすることで、配偶子器の発生過程の遺伝子発現を捉えることができた。さらにその転写因子の機能の解析を進めたことで、配偶子器発生の初期過程における分子メカニズムの一端を明らかにすることができた。これらの結果は今後、さらなる制御因子の特定や初期発生プログラムの分子レベルでの理解につながることが予想される。
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