Transcriptional and post-translational regulation of germ cell differentiation in land plants
Project/Area Number |
18K06285
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 44030:Plant molecular biology and physiology-related
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Research Institution | Kyoto University |
Principal Investigator |
Yamaoka Shohei 京都大学, 生命科学研究科, 准教授 (00378770)
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Project Period (FY) |
2018-04-01 – 2021-03-31
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Project Status |
Completed (Fiscal Year 2020)
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Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | 生殖細胞分化 / 配偶子形成 / 転写因子 / 環境応答 / 陸上植物 / ゼニゴケ / 花粉 / 生殖細胞 / 発生・分化 |
Outline of Final Research Achievements |
The BONOBO (BNB) family of transcription factor are evolutionarily conserved regulators of plant germline cell differentiation. In this study, transcriptional and post-translational regulation of BNB gene expression were analyzed. In the liverwort Marchantia polymorpha, I showed that MpBNB transcription is regulated by the orthologs of key regulators for flowering in response to day length and light quality. It was also shown that Arabidopsis BNB2 is transcriptionally activated in an early stage of flower bud development. Both of Marchantia and Arabidopsis BNB proteins form a heterodimer with the other transcription factors to regulate germline cell differentiation. Further analyses suggested that this heterodimer is relatively stable in an early stage of M. polymorpha gametangium development, while it is transiently formed during fate determination of generative cell in Arabidopsis pollen.
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Academic Significance and Societal Importance of the Research Achievements |
植物の配偶子形成機構は、未同定の基本的制御因子がいまだ多いため、不明な部分が多い。特にコケ植物などの基部植物の配偶子形成とその光環境依存的制御の分子機構はほとんど明らかでない。本研究は、最近研究代表者らが同定した鍵因子BNBの機能発現調節機構についての基礎的知見を得ることで、こうした問題の解明を目指すものである。こうした知見は、食糧生産の基礎である植物有性生殖のメカニズムの全容解明に不可欠であり、社会的意義は大きい。
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Report
(4 results)
Research Products
(43 results)
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[Journal Article] Chromatin Organization in Early Land Plants Reveals an Ancestral Association between H3K27me3, Transposons, and Constitutive Heterochromatin2020
Author(s)
Montgomery SA, Tanizawa Y, Galik B, Wang N, Ito T, Mochizuki T, Akimcheva S, Bowman JL, Cognat V, Drouard L, Ekker H, Houng SF, Kohchi T, Lin SS, Liu LYD, Nakamura Y, Valeeva LR, Shakirov EV, Shippen DE, Wei WL, Yagura M, Yamaoka S, Yamato KT, Liu C, Berger F.
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Journal Title
Current Biology
Volume: 30
Issue: 4
Pages: 573-588
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Loss of CG Methylation in Marchantia polymorpha Causes Disorganization of Cell Division and Reveals Unique DNA Methylation Regulatory Mechanisms of Non-CG Methylation.2018
Author(s)
Ikeda Y, Nishihama R, Yamaoka S, Arteaga-Vazquez MA, Aguilar-Cruz A, Grimanelli D, Pogorelcnik R, Martienssen RA, Yamato KT, Kohchi T, Hirayama T, Mathieu O.
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Journal Title
Plant Cell Physiol.
Volume: 12
Pages: 2421-2431
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] Chromosome-level genome assembly of liverwort Marchantia polymorpha and updates of the genome database MarpolBase2020
Author(s)
Tanizawa Y, Yagura M, Sakamoto M, Mochizuki T, Montgomery SA, Galik B, Yamaoka S, Nishihama R, Yamato KT, Kohchi T, Berger F, Liu C, Nakamura Y.
Organizer
第61回日本植物生理学会年会
Related Report
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[Presentation] Analysis of the Mechanism How Antisense lncRNA SUF Represses the Female Promoting Factor MpFGMYB in Marchantia polymorpha2019
Author(s)
Kajiwara T, Okahashi K, Hisanaga T, Miyazaki M, Iwasaki M, Yamaoka S, Nishihama R, Shimamura M, Yamato KT, Nakajima K, Kohchi T.
Organizer
Marchantia Workshop 2019
Related Report
Int'l Joint Research
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[Presentation] Update of MarpolBase to accommodate ver. 5.1 gene annotation2019
Author(s)
Tanizawa Y, Yagura M, Sakamoto M, Mochizuki T, Montgomery SA, Galik B, Yamaoka S, Yamato KT, Kohchi T, Nakamura Y, Liu C, Berger F.
Organizer
Marchantia Workshop 2019
Related Report
Int'l Joint Research
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[Presentation] 陸上植物の生殖細胞分化に必要な転写因子BONOBOの同定と標的遺伝子の探索2018
Author(s)
山岡尚平, 西浜竜一, 吉竹良洋, 石田咲子, 井上佳祐, 齋藤美咲, 岡橋啓太郎, 包昊南, 西田浩之, 山口勝司, 重信秀治, 石崎公庸, 大和勝幸, 河内孝之
Organizer
日本植物学会第82回大会
Related Report
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[Presentation] ゼニゴケにおけるDNAメチル化制御2018
Author(s)
池田陽子, 西浜竜一, 山岡尚平, ARTEAGA‐VAZQUEZ Mario. A, GRIMANELLI Daniel, MARTIENSSEN Robert A., POGORELCNIK Romain, MATHIEU Olivier, 大和勝幸, 河内孝之, 平山隆志
Organizer
日本植物学会第82回大会
Related Report
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