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Updated: Feb 1, 2026

08:25
Identification of Circular RNAs using RNA Sequencing
Published on: November 14, 2019
12.8K
循环RNAVv-circCOR27通过减弱葡萄藤中的VvHSP90.2b-VvHsfA7a相互作用来调节耐热性
Yi Ren1,2, Yuanyuan Xu2, Moyang Liu2
1College of Landscape and Horticulture, Yunnan Agricultural University, Kunming, Yunnan, 650201, China.
The New phytologist
|January 31, 2026
概括
循环RNAs (circRNAs) 通过与热冲击蛋白90.2b (VvHSP90.2b) 结合来调节葡萄酒的耐热性,从而抑制控制热应激反应基因的相互作用.
科学领域:
- 植物分子生物学 植物分子生物学
- RNA生物学的RNA生物学
- 压力生理学 压力生理学
背景情况:
- 循环RNAs (circRNAs) 是植物中的关键调节分子,但它们的功能在很大程度上仍未被探索.
- 了解circRNA调节机制对于提高植物应激耐受性至关重要.
研究的目的:
- 为了研究葡萄藤circRNA Vv-circCOR27.27.的功能和调节机制.
- 阐明Vv-circCOR27在植物耐热性中的作用.
主要方法:
- 基因转换,circRNA拉下测试和核糖蛋白免疫沉 (RIP).
- 使用了一个circRNA三分子光补充 (cTriFC) 系统.
- 使用专门的表达盒,过度表达Vv-circCOR27.
主要成果:
- 在热应激下,Vv-circCOR27的表达减少,并且在耐热葡萄品种中较低.
- 过度表达Vv-circCOR27增强了葡萄藤中的耐热性.
- Vv-circCOR27直接与VvHSP90.2b结合,抑制VvHsfA7a相互作用并降低小热冲击蛋白 (sHSP) 基因的调节.
结论:
- Vv-circCOR27通过具有竞争力的 VvHSP90.2b.b. 约束来微调耐热性.
- 这种相互作用减弱了热应激反应基因的VvHsfA7a结合和随后的交换活化.
- 这项研究促进了对植物热应激反应中的circRNA调节机制的理解.
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