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Updated: Jun 29, 2025

In Silico Identification and Characterization of circRNAs During Host-Pathogen Interactions

In Silico Identification and Characterization of circRNAs During Host-Pathogen Interactions

Published on: October 21, 2022

循环RNA ath-circ032768,一个竞争的内源RNA,通过准miR472-RPS5模块来应对干旱压力

Z Yin¹, Q Zhao¹, X Lv¹

¹College of Life Sciences, Northwest A&F University, Yangling, Shaan Xi, China.

Plant biology (Stuttgart, Germany)

|April 8, 2024

概括

循环RNAs (circRNAs) 通过调节ath-circ032768-miR472-RPS5通路来调节植物的干旱耐受性. 这种机制增强了关键抗干旱基因的表达,改善了在缺水条件下的植物生存.

科学领域:

植物分子生物学植物分子生物学
基因规则基因规则
压力生理学压力生理学

背景情况:

循环RNAs (circRNAs) 作为竞争的内源RNAs (ceRNAs) 来调节基因表达的功能.
在植物干旱应激反应中circRNAs的作用仍然在很大程度上未被探索.
了解circRNA介导的机制对于提高作物弹性至关重要.

研究的目的:

研究ath-circ032768在植物干旱应激反应中的作用.
阐明竞争的内源RNA (ceRNA) 网络,其中包括ath-circ032768,miR472和RPS5.5.
开发具有增强干旱耐受性的转基因植物.

主要方法:

用于circRNA发现的戒指识别和测序.
生物信息分析用于预测RNA相互作用.
建设转基因植物过度表达ath-circ032768和沉默miR472.2.
生物化学和分子分析以评估干旱应对.

主要成果:

测序证实了ath-circ032768,miR472和RPS5对干旱压力的反应.
Ath-circ032768可以竞争性地抑制miR472与RPS5mRNA的结合,防止RPS5的降解.
在转基因植物中,过度表达ath-circ032768和静止miR472可以提高干旱耐受性.
这一途径导致下游干旱抵抗基因 (DREB2A,RD29A,RD29B) 的表达增加.

结论:

通过ceRNA机制,Ath-circ032768在植物干旱应激反应中起到至关重要的调节作用.
ath-circ032768-miR472-RPS5通路调节了抗压蛋白相互作用和下游基因表达.
这项研究提供了一个新的分子基础,通过circRNA操纵来增强植物对干旱的耐受性.

关键词:

在RPS5中使用RPS5.在CC-NBS-LRRR中使用.干旱造成的压力是干旱.ath-circ03276868 的时间 ceRNARNA是什么意思 miR472 2个国家

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