WRKY转录因子ZmWRKY92与GA合成相关的基因结合,以调节玉米植物高度
Xiu Fang1, Hao Wu1, Wanchang Huang1
1National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
Plant physiology and biochemistry : PPB
|February 9, 2024
概括
ZmWRKY92是一种核蛋白,它调节了玉米植物的高度. ZmWRKY92中的突变通过影响内部节点长度和激素水平导致矮化,这对于高密度种植至关重要.
科学领域:
- 植物分子生物学 植物分子生物学
- 农业科学 农业科学
- 遗传学 是一个遗传学.
背景情况:
- 植物的高度是玉米产量的一个关键特征,影响着种植阻力和种植密度.
- 了解植物高度的遗传调节对于开发高产玉米品种至关重要.
研究的目的:
- 研究ZmWRKY92在玉米植物高度调节中的作用.
- 确定ZmWRKY92在植物发育中的功能背后的分子机制.
主要方法:
- ZmWRKY92的分子特征,包括其亚细胞局部化和DNA结合活性.
- 乙基甲硫酸盐 (EMS) 诱导的wrky92突变体的查和表征.
- 表型分析,包括内节长度和激素水平测量.
- 转录组分析和促进体相互作用试验.
主要成果:
- ZmWRKY92是一种具有转录激活潜力的核蛋白,与W-box元素结合.
- 在ZmWRKY92的突变导致一个截断的蛋白质和矮化表型,以较短的内部节点为特征.
- 突变者表现出减少的内部节点细胞大小和较低的吉伯雷林A3 (GA3) 和英多尔-3-酸 (IAA) 水平.
- ZmWRKY92与GA合成基因 (ZmGA20ox7和ZmGID1L2) 的促进者相互作用.
结论:
- ZmWRKY92在调节玉米植物高度方面发挥着重要作用.
- ZmWRKY92基因对于通过荷尔蒙途径控制内节延长至关重要.
- 了解ZmWRKY92的功能可以帮助培育用于高密度种植的玉米品种.
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