对m5CRNA甲基化的表皮转录分析显示,番茄对TSWV感染的动态反应
Xinyi Zhao1, Yanwei Gong1, Yubing Jiao1
1Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China.
Frontiers in plant science
|February 9, 2026
概括
氨酸-5甲基化 (m5C) 对番茄植物免疫力至关重要. 通过SlTRM4B介导的m5CRNA甲基化,通过稳定转录和改善疾病防御,增强了对番茄斑点枯病毒 (TSWV) 的抵抗力.
科学领域:
- 史诗转录组学 史诗转录组学
- 植物分子生物学 植物分子生物学
- 基因组RNA的修饰是RNA的修饰.
背景情况:
- 细胞因子-5甲基化 (m5C) 是一种关键的表达体记号,它调节了真核生物中的RNA稳定性和基因表达.
- 在园艺作物中m5C的作用,特别是在生物压力下,尚未得到充分研究.
- 番茄斑点枯病毒 (TSWV) 对番茄生产构成重大威胁.
研究的目的:
- 调查m5C修饰在番茄对TSWV感染的反应中的作用.
- 在Solanum lycopersicum中构建第一个全面的m5C表谱图.
- 阐明RNA甲基转移酶SlTRM4B在植物免疫中的功能.
主要方法:
- 在Solanum lycopersicum中构建一个全面的m5C表谱图.
- 在TSWV感染时分析动态的m5C甲基组变化.
- 对SlTRM4B.的综合性多基因分析和病毒诱导的基因沉默 (VIGS).
主要成果:
- 观察到一种保存的m5C修饰模式,在转录开始和停止地点进行丰富.
- TSWV感染导致m5C水平的全球增加,与SlTRM4B上调相关.
- 基因表达和超甲基化增加的基因在植物病原体相互作用途径中得到了丰富.
- SlTRM4B的VIGS损害了转录稳定性和增加了疾病易感性.
结论:
- 通过SlTRM4B介导的m5CRNA甲基化对于番茄对TSWV的防御至关重要.
- 这种表体转录机制微调了对疾病耐药性的转录后调节.
- 这项研究为植物抗病毒免疫的表转录体调节提供了新的见解.
关键词:
RNA 稳定性 RNA 稳定性索兰 (Solanum lycopersicum) 是一种的植物.在TSWVV中.m5C 在线观看m5C-RIP-seqq-seq-seq-seq-seq m5C-RIP-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq-seq.m5C-RIP-seq-seq-seq.m5C-RIP-seq.m5C-RIP-seq.
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