土豆病毒的时间和地理动态和俄罗斯的多样性
Viktoriya O Samarskaya1, Eugene V Ryabov2, Nikita Gryzunov1,3
1Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia.
International journal of molecular sciences
|October 14, 2023
概括
马病毒Y (PVY) 的遗传多样性因气候而异,在温暖的地区发现更多类型. 结核传播可以改变PVY基因,影响土豆作物中的病毒进化.
科学领域:
- 植物病理学 植物病理学
- 病毒学 病毒学
- 遗传学 遗传学 是一个
背景情况:
- 马病毒Y (PVY) 是一种具有不同遗传变异的重要马病原体.
- 环境因素,虫载体和水库植物影响PVY分布.
- 结核传播PVY是其传播的关键因素,但其遗传影响尚未得到充分研究.
研究的目的:
- 研究俄罗斯不同气候区的虫传播的PVY种群的遗传多样性.
- 用高通量测序分析结核传播对PVY遗传学的影响.
主要方法:
- 在PVY群体的高通量测序.
- 在莫斯科和阿斯特拉汉地区的土豆茎和芽中分析PVY.
- 在不同气候条件下比较PVY变异.
主要成果:
- 与莫斯科地区相比,在温暖的阿斯特拉罕地区观察到PVY多样性明显更高.
- 这两个地区共有五种PVY类型 (NTNa,NTNb,N:O,N-Wi,SYR-I).
- 独特的PVY变种 (SYRI-II,SYRI-III,261-4) 仅在阿斯特拉罕地区被发现.
- 重组PVY菌株由PVY类型O和N的基因组段组成.
- 芽中的PVY变体组成与母植物不同,表明在芽传播过程中发生了基因修饰.
结论:
- 气候显著影响土豆中的PVY遗传多样性.
- 结核传播是可以改变PVY基因的关键因素,有助于病毒进化.
- 了解PVY遗传动态对于控制这种重要的土豆病原体至关重要.
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