模块miR159a-PeMYB33调节树通过酸信号通路的偶然根植
Meiqi Zhao1, Yijing Lei1, Ling Wu2
1State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China.
The Plant journal : for cell and molecular biology
|January 25, 2024
概括
miR159a-PeMYB33模块和酸 (ABA) 信号协同工作,控制树的偶然根形成,影响植物生长和适应压力.
科学领域:
- 植物生物学 植物生物学
- 分子遗传学 分子遗传学
- 植物生理学 植物生理学
背景情况:
- 植物是面临环境压力的静止生物.
- 偶然的植根是植物的一个关键的适应策略.
- 了解根部发育调节对于植物适应至关重要.
研究的目的:
- 为了研究miR159a-PeMYB33模块在树偶然根 (AR) 形成中的作用.
- 为了阐明miR159a-PeMYB33和abscisic acid (ABA) 信号在AR发展中的相互作用.
- 为了揭示树中AR形成的调节机制.
主要方法:
- 基因表达分析 (miR159a的过度表达和抑制).
- 降级组测序用于识别miR159a目标.
- 在树原生质中进行过渡表达实验.
- 在转基因植物中分析AR数和植物高度.
主要成果:
- 过度表达miR159a增加了AR和植物高度,降低了ABA敏感性.
- 抑制miR159a或过度表达PeMYB33降低了ARs.
- miR159a直接准并分裂PeMYB33的转录.
- 在miR159a-PeMYB33模块促进ABA信号基因表达.
结论:
- miR159a-PeMYB33模块与ABA信号协同作用,以调节树中AR的发展.
- 该模块对于调节AR形成和植物生长以响应环境线索至关重要.
- 研究结果提供了关于植物适应策略复杂遗传调节的见解.
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