通过终端耳朵进行叶子启动的调节 1玉米的基因
B Veit1, S P Briggs, R J Schmidt
1Institute of Molecular Biosciences, Massey University, Palmerston North, New Zealand.
Nature
|May 29, 1998
概括
一个新发现的玉米基因,终端耳1 (tel),对于调节叶子发育至关重要. 它的RNA结合活性可以控制植物新叶的发育时间和位置.
科学领域:
- 植物发育生物学植物发育生物学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 植物架构主要由发芽尖端的胚胎后发育决定.
- 叶子排列 (phyllotaxy) 是由叶子原始形成的,由叶子原始在发芽顶部的特定位置出现.
- 控制叶子发育时间和地点的确切机制仍然不完全理解.
研究的目的:
- 调查玉米基因,终端耳1 (tel) 在调节叶子发芽的作用.
- 探索tel基因产物在植物发育中的分子功能.
主要方法:
- 在玉米芽中分析终端耳1的基因表达模式.
- 缺乏功能终端耳朵的突变体的表型特征 1.
- 对特尔基因产品进行生物信息分析,以寻找保存的功能动机.
主要成果:
- 末端耳朵1的表达模式与叶子启动相关.
- 终端耳1的突变体表现出改变的叶子启动.
- 泰尔基因产物具有保存的RNA结合基因,这表明它在RNA调节中的作用.
结论:
- 终端耳1 (tel) 在调节玉米的叶子开始方面发挥着重要作用.
- 泰尔基因产品的RNA结合活性可能是其控制叶子发育的核心功能.
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