动态的N1 - - 甲基氨酸RNA甲基化为番茄果实成熟提供了洞察力
Lili Ma1,2, Jinhua Zuo1, Chunmei Bai1,2
1Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Vegetable Postharvest Processing of Ministry of Agriculture and Rural Areas, State Key Laboratory of Vegetable Biobreeding, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing, 100097, China.
The Plant journal : for cell and molecular biology
|November 4, 2024
概括
N1-甲基氨酸 (m1A) RNA甲基化在番茄果实中广泛存在,并在成熟过程中减少. 这种表观遗传修饰会影响基因表达和水果发育,特别是与乙烯相关的基因.
科学领域:
- 分子生物学分子生物学
- 植物科学 植物科学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- N1-甲基氨酸 (m1A) 是一种关键的RNA修饰,可以调节真核生物中的基因表达.
- 在番茄果实成熟过程中m1A的作用和分布,这是肉质果实发育的关键模式,仍然在很大程度上未被探索.
研究的目的:
- 调查番茄果实成熟期间m1ARNA修饰的流行,分布和功能意义.
- 为了比较野生类型番茄和成熟受损的乙烯受体突变体 (Nr) 的m1A水平.
主要方法:
- 使用MeRIP-seq和RNA-seq进行m1A修饰和基因表达的分析.
- 在不同成熟阶段的野生类型 (Ailsa Craig) 和Nr突变番茄果实之间进行了比较分析.
主要成果:
- 在番茄mRNA,lncRNA和circRNA中,m1A修饰很丰富,主要丰富在开始码头和CDS区域.
- 全球m1A水平从成熟的绿色到成熟阶段下降,与野生类型相比,Nr突变水果的含量较低.
- m1A水平与成熟相关基因的表达呈正相关,包括乙烯通路基因 (ACO3,EBF1,ERF.D6).
结论:
- m1A RNA甲基化在调节番茄果实成熟期间基因表达方面发挥着重要作用.
- 降低的m1A水平和Nr突变体中乙烯相关基因的改变表达有助于其受损的成熟表型.
- m1A修饰是影响水果发育,质量和营养价值的关键表观遗传因素.
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