玉米Dek407编码了酸盐输送器1.5,并且是内核开发所需的
Hongqiu Wang1,2,3, Xiaolan Yan2,3, Qingguo Du1
1National Engineering Laboratory for Crop Molecular Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
International journal of molecular sciences
|December 23, 2023
概括
一种玉米突变,有缺陷的核407 (dek407),由于改变了英多尔-3-酸水平,显示了较小的核. 这种酸盐输送器1/酸输送器家族基因为改善玉米产量提供了目标.
科学领域:
- 植物分子生物学 植物分子生物学
- 玉米的遗传学 玉米的遗传学
- 植物生理学作物生理学
背景情况:
- 玉米核的开发对于作物产量和质量至关重要.
- 了解其遗传控制对于农业进步至关重要.
研究的目的:
- 调查玉米中缺陷的核发育的遗传基础.
- 为了确定调节核子大小,重量和谷物填充的基因.
主要方法:
- 乙基甲硫酸盐的突变发生产生突变.
- 定位克隆和等位基因测试以确定因果基因.
- 转录组分析和植物激素测量.
主要成果:
- 一个突变的,有缺陷的内核407 (dek407),显示了内核尺寸,重量和延迟谷物填充的减少.
- Dek407编码了一种酸盐输送器1/输送器家族 (NPF) 蛋白质,被确定为微型2 (mn2) 的异位基因.
- 德克407突变显著降低了66%的英多尔-3-酸含量,影响了植物激素信号和基因表达.
结论:
- 德克407在玉米核的发育中起着至关重要的作用,可能是通过调节英多尔-3-酸水平.
- 德克407的自然变化与内核大小和重量有关.
- Dek407代表了一种有前途的基因,可以提高玉米产量和质量.
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