高通量测序发现了多种多样的单片和双片贝戈莫病毒感染沙特阿拉伯的黄瓜
Muhammad Naeem Sattar1, Mostafa I Almaghasla2,3, Muhammad Nouman Tahir4
1Central Laboratories, King Faisal University, Al-Ahsa, Saudi Arabia.
Frontiers in plant science
|October 25, 2024
概括
这项研究揭示了贝戈莫病毒的遗传多样性,包括沙特阿拉伯黄瓜作物中的番茄黄色叶子卷曲病毒 (TYLCV),西瓜化特技病毒 (WmCSV) 和番茄叶子卷曲帕兰普尔病毒 (ToLCPalV). 这些发现突显了病毒的进化和重组,为植物疾病动态提供了洞察力.
科学领域:
- 植物病毒学 植物病毒学
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 贝戈莫病毒对全球的黄瓜作物构成重大威胁.
- 沙特阿拉伯的贝戈病毒流行率和遗传多样性研究有限.
- 了解病毒遗传构成对于疾病管理至关重要.
研究的目的:
- 为了调查感染沙特阿拉伯阿尔阿萨的黄瓜植物的贝戈莫病毒的遗传多样性和流行率.
- 描述已识别的贝戈莫病毒的进化动态和重组模式.
- 提供对影响当地农业的贝戈莫病毒遗传构成的见解.
主要方法:
- 使用下一代测序 (Illumina MiSeq) 来获得全长的贝戈莫病毒基因组.
- 进行了序列识别和遗传学分析,以确定病毒物种和菌株.
- 使用生物信息学工具分析了选择压力和重组事件.
主要成果:
- 确定了21个全长的贝戈莫病毒序列,包括番茄黄色叶子卷曲病毒 (TYLCV),西瓜化特技病毒 (WmCSV) 和番茄叶子卷曲帕兰普尔病毒 (ToLCPalV) 的变体.
- 在一些黄瓜植物中观察到混合感染.
- 检测到负选择压力和物种内/物种间重组的证据,特别是在TYLCV和WmCSV的DNA-B区域.
- 确定了ToLCPalV的一个独特的血统,与来自中东的分离物聚集在一起.
结论:
- 这项研究提供了沙特阿拉伯黄瓜作物中贝戈莫病毒多样性的第一个全面分析.
- 已识别的病毒表现出显著的遗传多样性和进化潜力,受选择和重组的影响.
- 这些发现有助于理解贝戈莫病毒的演变,并对该地区的疾病控制策略产生影响.
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