时间转录组分析揭示了核心途径和孤儿基因早期开花1 调节中国白菜中的花过渡
Hong Lang1, Yuting Zhang2,3, Shouhe Zhao2
1School of Agriculture, Jilin Agricultural Science and Technology College, Jilin 132101, China.
Plants (Basel, Switzerland)
|July 30, 2025
概括
研究人员确定了关键的基因和荷尔蒙通路,调节了中国白菜中的花过渡. 过度表达孤儿基因EARLY FLOWERING 1 (EF1) 促进了早期开花,这表明它有可能在布拉西卡作物中抑制耐药性繁殖.
科学领域:
- 植物生物学 植物生物学
- 分子遗传学 分子遗传学
- 农作物科学 农作物科学
背景情况:
- 在中国大白菜 (Brassica rapa ssp. 在中国大白菜 (Brassica rapa ssp. 在中国大白菜 (Brassica rapa ssp. 虫 (Pekinensis) 是一个复杂的过程,涉及基因表达和荷尔蒙调节.
- 了解这些分子机制对于提高作物产量和质量至关重要.
研究的目的:
- 为了研究控制中国卷心菜的花过渡的分子机制.
- 为了确定关键的基因和激素途径,涉及到开花时间调节.
- 探索孤儿基因,特别是早期开花1 (EF1) 在花诱导中的作用.
主要方法:
- 时间转录基因组在预螺栓,螺栓和开花阶段进行分析.
- 差异表达基因 (DEGs) 的识别和分析.
- 功能丰富分析 (GO,KEGG途径).
- 对关键的开花调节剂和激素通路的基因表达分析.
- 在Arabidopsis中使用过度表达的EF1的功能验证.
主要成果:
- 鉴定了7092个DEG,在花过渡期间显示出明显的表达模式.
- 植物激素信号传递,MAPK通路和发育调节得到了显著的增强.
- 关键的开花基因 (BrFLM,BrAP2,BrFD,BrFT,BrSOC1s) 呈现出对抗性的表达.
- 孤儿基因EF1在过渡期间显著上调,并在过度表达时促进了Arabidopsis的早期开花,从而上调了AtFT和AtSOC1.
结论:
- 这项研究阐明了协调的遗传和荷尔蒙事件驱动中国白菜的花发展.
- EF1被确定为一种潜在的候选基因,用于增强 Brassica 作物中螺栓抗性.
- 这项研究将孤儿基因整合到布拉西卡的花诱导的监管框架中.
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