来自Vitis amurensis的VaTPS9编码了一个与寒冷耐受性相关的三糖-6酸盐合成酶
Guoliang Liu1, Hongyan Qin1, Yanli Wang1
1Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun 130112, China.
Plants (Basel, Switzerland)
|March 14, 2026
概括
一个新发现的基因,VaTPS9,通过调节三糖代谢,增强葡萄树的耐寒性. 这一发现为培育更耐寒的种植葡萄品种提供了有希望的途径.
科学领域:
- 植物科学 植物科学
- 遗传学 是一个遗传学.
- 生物化学 生物化学
背景情况:
- 维蒂斯·阿穆伦斯 (Vitis amurensis) 是一种耐寒的野生葡萄,具有宝贵的遗传资源,用于培育耐寒的葡萄树.
- 在过冬期间在V. amurensis中发现的高表达基因VaTPS9的生物功能以前是未知的.
研究的目的:
- 在V. amurensis. 中识别和描述VaTPS9基因的功能.
- 研究VaTPS9在调节葡萄树寒冷耐受性的作用.
主要方法:
- 对VaTPS9.9的时间和空间表达分析.
- 基因克隆,序列对齐和功能分析通过过度表达和病毒诱导的基因沉默 (VIGS).
- 在低温压力下评估酵母,Arabidopsis thaliana,V. amurensis callus和葡萄树苗的寒冷耐受性.
主要成果:
- VaTPS9编码了一种II型三六酸盐合成酶 (TPS).
- 在多个模型系统中,VaTPS9的过度表达增强了耐寒性.
- 通过VIGS介导的VaTPS9沉默增加了葡萄树苗的寒冷敏感性.
- VaTPS9积极调节寒冷耐受性,可能是通过三糖代谢和活性氧物种 (ROS) 恒温.
结论:
- 在野生葡萄品种中,VaTPS9在冷适应的分子基础上起着至关重要的作用.
- VaTPS9是一种有前途的候选基因,可以增强栽培葡萄树的耐寒性.
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