转录基因分析揭示了一种调控网络,该网络控制了Shine Muscat葡萄 (Vitis labruscana Baily × V. vinifera L.) 中的挥发性化合物生物合成
Yongkang Nong1, Yanbei Chen1, Yang Bai2
1College of Agriculture, Guangxi University, Nanning, 530004, China.
Planta
|February 25, 2025
概括
与夏季果相比,冬季果含有较高的自由挥发性化合物度,特别是C6化物. 脂氧酶途径中的基因表达影响了这些差异,影响了葡萄的香味和质量.
科学领域:
- 葡萄种植和葡萄酒学 葡萄种植和葡萄酒学
- 植物生物化学 植物生物化学
- 分子生物学分子生物学
背景情况:
- 葡萄的香气和质量受到挥发性化合物的显著影响.
- 了解这些化合物的生物合成对于作物管理和质量控制至关重要.
- 葡萄种植的季节性变化可能会影响挥发性化合物配置.
研究的目的:
- 为了研究夏季和冬季果之间的自由和结合的挥发性化合物的差异,Shine Muscat葡萄.
- 探索挥发性化合物配置和与其生物合成相关的基因表达之间的相关性.
- 阐明葡萄中挥发性化合物生物合成的调节网络.
主要方法:
- 气色谱-质谱 (GC-MS) 用于挥发性化合物分析.
- 转录组分析用于研究基因表达模式.
- 来自每年两种作物种植系统的夏季和冬季果样本的比较分析.
主要成果:
- 与夏季果相比,冬季果表现出较高的自由挥发性化合物度,特别是化物和酒精.
- 结合式挥发性化合物度在冬季果中较低.
- 季节间C6挥发性化合物的显著差异与氧化酶 (LOX) 途径中的基因表达相关,例如VvLOXA和VvHPL1.
- 酒精脱酶 (VvADH1) 的更高表达与夏季果中酒精度的增加有关.
- 糖化物水解可能由VvBGLU基因调节,转录因子MYB60,MYBA1和GATA16可能参与C6酒精生物合成.
结论:
- 季节性种植显著影响了Shine Muscat葡萄中的挥发性化合物概况.
- 脂氧酶 (LOX) 路径和酒精脱酶 (ADH) 在冬季和夏季果之间挥发性化合物的差异生物合成中发挥关键作用.
- 了解挥发性化合物生物合成的转录调节,可以为农业实践提供信息,以提高葡萄的质量.
关键词:
在HS-SPME-GC-MS中使用.闪闪发光的香 (Vitis labruscana Baily × V. vinifera L.) 是一种葡萄酒.文字转录 文字转录 文字转录一年收获两次的作物.挥发性化合物 挥发性化合物更多相关视频
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