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通过ZmIDD14和ZmIDD15协调控制耳朵不对称的发展,微调玉米中高密度种植适应

Dan Liu¹, Qiang Ning¹, Lihong Zhai²

¹National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China.

Plant biotechnology journal

|May 31, 2024

概括

两种玉米基因,ZmIDD14和ZmIDD15,通过调节耳环发育来控制叶角. 他们的双重突变通过促进较小的叶角 (LA) 来提高高密度种植中的谷物产量.

科学领域:

植物生物学植物生物学
遗传学是一个遗传学.
农作物科学农作物科学

背景情况:

玉米叶架构,特别是叶角 (LA),对于优化光捕获和产量至关重要,特别是在种植密度高的情况下.
耳朵,专门的叶子结构,显著影响叶子-茎的角度.

研究的目的:

描述两个相似的不确定域 (IDD) 基因ZmIDD14和ZmIDD15在玉米耳膜发育和LA调节中的作用.
研究ZmIDD14和ZmIDD15在控制植物架构中的功能背后的遗传机制.

主要方法:

对ZmIDD14和ZmIDD15.的功能丧失突变的表征.
对基因表达模式和蛋白质相互作用的分析.
在高种植密度下对双重突变的谷物产量的评估.

主要成果:

ZmIDD14和ZmIDD15的功能是冗余的,以调节耳朵发育和LA.
功能丧失的突变体表现出LA降低,这是由于改变了胆瘤发育和耳膜对称性.
通过减少LA,双重突变在高种植密度下显示出增强的谷物产量.

结论:

ZmIDD14和ZmIDD15控制着轴/轴硬质膜发育和极极耳朵发育.
这些基因为开发高密度,高产量的玉米品种提供了宝贵的工具.

关键词:

耳朵的耳朵是什么意思叶子的角度叶子的角度常规地区常规地区玉米 (Zea mays L.) 是一种大豆.脑膜硬化症是什么? 脑膜硬化症是什么

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