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击败microRNA390 增强玉米支架根植生长

Juan Meng¹, Weiya Li¹, Feiyan Qi¹

¹National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China.

International journal of molecular sciences

|June 27, 2024

概括

研究人员确定了控制玉米支架根生长的微RNA (miRNAs). 通过对辅酶反应因子基因ZmARF11和ZmARF26进行上调,抑制miR390增强了根架构,改善了住宿阻力.

科学领域:

植物生物学植物生物学
遗传学是一个遗传学.
农业科学农业科学

背景情况:

支架根架构对于玉米的定,营养吸收和耐压力至关重要.
微RNAs (miRNAs) 是植物发育的关键调节者,包括根生长.

研究的目的:

确定调节玉米支架根发育的关键miRNAs.
研究miR390及其下游辅酶反应因子 (ARF) 在根生长中的作用.

主要方法:

玉米支架根样本的小RNA测序.
利用短串目标模仿 (STTM) 技术来减少玉米线中的miR390表达.
在STTM390系和ZmARF11和ZmARF26.2的功能丧失突变体中分析了根结构和基因表达.

主要成果:

miR167,miR166,miR172和miR390都与玉米支架根的生长有关.
减少miR390表达的玉米线 (STTM390) 显示了支架根的长度和旋数量的增加.
抑制miR390导致ZmARF11和ZmARF26的上调,影响根架构.

结论:

miR390,ZmARF11和ZmARF26是玉米支架根生长的关键调节者.
这项研究为培育玉米提供了基因基础,提高了置抵抗力和环境适应能力.

关键词:

在ARF1111中,我们可以看到在 ARF2626 里.辅助素信号传递辅助素信号传递支架根生长的成长支架根生长的成长装载阻力装载阻力装载阻力玉米玉米玉米是一种 miR39090 是一个很好的方法.

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