转录组分析显示,ZmERF055有助于甜玉米的浸水耐受性
Faqiang Feng1, Qing Wang1, Kerui Jiang1
1Guangdong Key Laboratory of Plant Molecular Breeding, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China.
Plant physiology and biochemistry : PPB
|October 17, 2023
概括
这项研究确定ZmERF055是改善甜玉米浸水耐受性的关键基因. 过度表达增强了耐受性和活性氧物种 (ROS) 稳态,为作物育种提供了目标.
科学领域:
- 植物科学 植物科学
- 遗传学 遗传学 是一个
- 农业学是一种农业学.
背景情况:
- 浸水严重损害了作物生产,特别是在不耐受甜玉米品种的作物生产中.
- 了解水浸耐受性的遗传基础对于提高作物弹性至关重要.
研究的目的:
- 调查甜玉米中浸水耐受性的生理,生化和转录基因机制.
- 为了确定关键的基因和途径,涉及到甜玉米对水浸压力的反应.
主要方法:
- 在水浸下对两个甜玉米染色体段替代线 (CSSL) 的比较分析.
- 生理和生化分析测量植物生长,根部发育和抗氧化活性.
- 转录组测序以识别差异表达基因 (DEG) 和调控网络.
主要成果:
- 与D81.1.相比,耐受性D120基因型表现出增强的根生长,抗氧化酶活性和空气酶形成.
- 转录基因分析显示了与活性氧物种 (ROS) 恒温,光合作用和酒精发酵相关的DEGs.
- 转录因子ZmERF055被确定为水浸耐受性的关键调节者,其功能在Arabidopsis中得到证实.
结论:
- 甜玉米浸水耐受性涉及植物激素信号的协调调节,ROS稳态和能量代谢.
- ZmERF055是一种有前途的目标基因,可通过作物育种开发耐水浸的甜玉米品种.
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