外表达的OsWOX9A改变了大米中的叶子解剖学和植物结构
Dandan Li1, Longjiang Fan1, Qingyao Shu1,2
1Hainan Institute, Yazhou Bay Science and Technology City, Zhejiang University, Sanya, 572025, China.
Planta
|June 16, 2024
概括
在大米中过度表达OsWOX9A会导致狭窄,卷状的叶子具有较大的细胞和较少的静脉. 这种与WUSCHEL相关的homeobox基因会影响植物结构和基因表达,影响叶子的发育.
科学领域:
- 植物分子生物学 植物分子生物学
- 发展遗传学 发展遗传学
背景情况:
- 与WUSCHEL相关的homeobox (WOX) 基因家族对植物发育至关重要.
- 众所周知,OsWOX9A (DWT1) 能够影响大米的和花生长.
- OsWOX9A在叶发育中的特定作用仍未得到研究.
研究的目的:
- 研究OsWOX9A在米生长和发育中的生物学作用.
- 了解OsWOX9A过度表达对叶子形态和植物结构的影响.
主要方法:
- 生产过基因大米植物,过度表达OsWOX9A.
- 与野生植物相比,转基因植物的表型分析.
- 进行比较转录组分析以确定差异表达的基因.
主要成果:
- OsWOX9A的过度表达导致了狭窄的,有较大的状细胞的状滚动叶子,并减少了大静脉.
- 转基因植物显示了植物结构的改变,包括减少了植物的高度,耕机数量和种子设置率.
- 转录组分析揭示了与辅酶相关的和扩增基因的差异表达.
结论:
- 宫外OsWOX9A的表达显著影响了大米叶的形态和整体植物结构.
- OsWOX9A可能通过调节auxin和expansin基因表达来调节叶子的发育.
- 这项研究提供了关于WOX9亚家族在叶发育和植物结构中的作用的见解.
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