在盐应激下对大米幼苗的表转录组和翻译组进行全面的分析
Qian Qian1, Yiming Zhou1,2, Yuli Gan1
1Guangdong Academy of Agricultural Sciences, Key Laboratory of Genetics and Breeding of High-Quality Rice in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Rice Science and Technology, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangzhou 510640, Guangdong, China.
Plant physiology
|October 6, 2025
概括
米植物通过改变基因表达,RNA修饰 (N6-甲基氨酸和N5-甲基氨酸) 和翻译效率来适应盐应激. 这项研究揭示了盐条件下的大米苗的关键分子变化.
科学领域:
- 植物分子生物学 植物分子生物学
- 文字转录学 (Transcriptomics) 是一个学科.
- 史诗转录组学 史诗转录组学
背景情况:
- 植物动态调节基因表达以适应环境.
- 有限的研究存在于盐应激下大米中的表体转录和翻译.
研究的目的:
- 在盐应激下研究米苗的转录后和转化后变化.
- 探索RNA修饰,转录丰度和翻译效率的相互作用.
主要方法:
- 纳米孔直接RNA测序 (DRS) 用于RNA修饰分析.
- 核糖体造型,以评估翻译效率.
- 时间过程转录组分析.
主要成果:
- 盐应激改变了全球N6-甲基氨酸 (m6A) 和N5-甲基氨酸 (m5C) 的比率.
- 修改后的基因与转录丰富度相关,并且在氧化减少过程中得到丰富.
- 在盐应力下,修改的mRNA和多种甲基甲基甲基的翻译效率增加.
结论:
- 早期的盐应激显著影响到大米的表转录和翻译.
- 在大米的盐应激反应中,RNA的修饰,转录的丰富性和翻译都与之密切相关.
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