作为表观遗传调节元件的G-四重体结构,在玉米中短时间Trichoderma atroviride注射后对防御基因进行初始化
Romina B Agostini1, Ernesto J Piga2, Candela Bayón2
1Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Rosario (UNR), Suipacha 531, Rosario 2000, Santa Fe, Argentina.
Plants (Basel, Switzerland)
|October 26, 2024
概括
三体共生为玉米植物提供了防御. 关键基因中的G-四重复结构可能会在表观遗传上调节这种持久的原始状态,为植物免疫提供了新的见解.
科学领域:
- 植物科学 植物科学
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- *三角体状体共生促进了植物对未来压力的防御.
- * 这种持续的植物警觉性背后的分子机制尚不清楚.
- * 根据假设,表观遗传修饰可以调解Trichoderma诱导的植物原始化.
研究的目的:
- * 为了研究G-quadruplex (G4) 结构在玉米 (Zea mays) 植物原始化中的作用.
- * 识别与原始化相关的基因中的潜在G4形成序列 (PQS).
- * 探索G4形成作为植物防御中的表观遗传机制.
主要方法:
- * 开发一种用于在玉米原始基因中识别PQS的选试验.
- *生物信息分析以在基因促进器区域中定位PQS.
- *在体外生物物理和光谱学研究以确认G4形成.
- * 染色体免疫沉 (ChIP) 试验用于验证体内G4形成.
主要成果:
- *在五个重要的玉米原始基因的促进子区域中确定了假定G4形成序列 (PQS).
- *生物物理和光谱分析在体外证实了这些PQS的G4形成.
- * ChIP测试表明,在玉米植物中体内形成G4结构.
结论:
- *G-四重复形成是玉米中潜在的表观遗传调节机制.
- *G4s可能有助于在植物中建立和维持长期的初始化状态.
- *这项研究提供了G4s参与Trichoderma介导的植物防御原始化的证据.
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