延迟结的育种减缓了培养的生理时钟
Cèlia Anton-Sales1, Esther S van den Bergh2, Alejandro Thérèse-Navarro1
1Plant Breeding, Wageningen University and Research (WUR), 6708 PB, Wageningen, the Netherlands.
The New phytologist
|August 22, 2025
概括
通过改变生理时钟基因, 植物染色体C (PHYC) 的突变减缓了时钟,延迟了开花,改善了作物的特征.
科学领域:
- 植物生物学
- 遗传学
- 农作物科学
背景情况:
- 生物钟调节生物活动和发育.
- 生物钟在叶作物化中的作用以前是未知的.
- 化通常涉及选择特征,如延迟螺栓.
研究的目的:
- 调查在养菜中选择延迟螺栓是否针对生物钟组件.
- 识别控制生日周期和生时间的遗传变异.
主要方法:
- 在234种生菜中表型化昼夜节律和发育时间.
- 使用高通量叶子运动跟踪.
- 使用全基因组关联研究 (GWAS) 和类型分析.
主要成果:
- 培养的生菜的生日周期比野生生菜更长, 这与PHYC突变有关.
- 这种PHYC等位基因与时钟减速,延迟开花和开花时间有关.
- PHYC等位基因在养菜的早期被选择,在现代品种中被丰富.
结论:
- 循环时钟减速首次与化和叶作物繁殖有关.
- 植物染色体C (PHYC) 是生菜中时钟和发育时间的类调节剂.
- 循环表型是预测发育时间和作物改善的宝贵工具.
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