人类甲型流感病毒1型的进化动力学基于血凝-神经氨基酶基因
Yitong Lin1, Jie Jiang1, Chongyang Li1
1National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases (NITFID), NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, WHO WPRO Regional Reference Measles/Rubella Laboratory, Chinese Centre for Disease Control and Prevention, Beijing, China.
Journal of medical virology
|October 9, 2025
概括
人类类型1型型流感病毒 (HPIV1) 显示了60多年来保存的进化. 基因型B和C在全球占主导地位,而基因型D在中国占主导地位,这表明了不同的进化途径.
科学领域:
- 病毒学 病毒学
- 进化生物学 进化生物学
- 遗传学 遗传学 是一个
背景情况:
- 人类类型1型型型流感病毒 (HPIV1) 是一个重要的呼吸道病原体.
- 了解HPIV1的进化动态对于公共卫生至关重要.
- 之前的研究还没有完全阐明HPIV1.1的全球和区域遗传多样性.
研究的目的:
- 分析HPIV1.1的进化动态和遗传特征.
- 将全球和中国的HPIV1菌株分类为基因型.
- 识别HN基因中的基因型特异变异.
主要方法:
- 对78个中国HPIV1血氨酸-神经氨基酶 (HN) 基因序列 (2011-2023) 的遗传学分析.
- 构建全球 (482个序列,1956-2023) 和中国 (122个序列,2011-2023) 的HPIV1数据库.
- 应用遗传距离值 (0.02) 进行基因型分类.
主要成果:
- 自20世纪90年代以来,HPIV1菌株被分为五种基因型 (A-E).
- 基因型B和C在全球普遍存在,包括在中国.
- 基因型D在中国表现出空间聚类,有迅速进化的证据.
- 在HPIV1的研究中,HPIV1表现出保守的进化,其整体替代率为9.41×10−4替代/地点/年.
- 在HN中确定了基因型特定的氨基酸替代和N-糖化位.
结论:
- HPIV1表现出明显的全球和区域进化模式.
- 基因型D代表了中国内显著的,快速发展的血统.
- 鉴定的HPIV1 HN的遗传特征为其病毒演变和适应提供了洞察力.
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