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来自常见野生大米 (Oryza rufipogon) 的NLR基因 (YPR1) 功能分析,用于细菌抗疫

Wang Kan¹, Zaiquan Cheng^2,3, Yun Zhang^2,3

¹College of Plant Protection, Yunnan Agricultural University, Kunming 650224, China.

|November 27, 2025

概括

在普通野生大米中发现了一种新的NLR基因YPR1,并发现它对Xanthomonas oryzae pv.引起的细菌病 (BB) 产生了广泛的抗药性. 奥里扎 (Xoo) 的意思. 淘汰YPR1增加了BB易感性,突出了它在防护大米中的关键作用.

科学领域:

植物遗传学和育种.
分子植物病理学分子植物病理学
基因组学和生物信息学

背景情况:

细菌病 (BB) 是对全球大米生产的重大威胁.
识别新型疾病耐药性 (R) 基因对于增强大米抗性至关重要.
常见的野生大米 (Oryza rufipogon) 是R基因的宝贵来源.

研究的目的:

从普通野生大米中识别和功能性表征一种新的NLR基因YPR1.
调查YPR1在赋予细菌病菌耐药性的作用.
探索YPR1作为一种潜在的遗传资源,用于培育抗BB的水.

主要方法:

传统的PCR,RT-PCR和生物信息学用于基因克隆和表征.
在一个敏感的水品种中进行转基因分析 (过度表达).
在CRISPR/Cas9基因编辑中创建YPR1淘汰线.

主要成果:

YPR1是一种新型的CNL型NLR基因,编码具有RX-CC_like,NB-ARC和LRR域的992氨基酸蛋白.
在大米中的YPR1过度表达赋予了对多种毒性Xanthomonas oryzae pv的广泛耐药性. 奥里泽 (Xoo) 菌株.
野生大米中YPR1的CRISPR/Cas9介导的淘汰导致对Xoo.的敏感性增加.

结论:

在普通野生大米中,YPR1在细菌病耐药性方面发挥着关键作用.
YPR1是一种新型的CNL型NLR基因,为多种Xoo菌株提供了特异性耐药性.
YPR1代表了一种有前途的遗传资源,可以通过分子育种开发抗BB的米品种.

关键词:

这就是CRISPR/Cas9的作用.在 NLR 基因上.常见的野生大米疾病耐药性繁殖育种耐药性表达方式表达方式表达模式诱导的表达方式组织特异性表达.白叶虫害是白叶虫害的一种.

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