在乳头瘤病毒进化过程中区分遗传偏移与选择
Robert D Burk1, Lisa Mirabello2, Robert DeSalle3
1Departments of Pediatrics, Microbiology & Immunology, Epidemiology & Population Health, Obstetrics, Gynecology and Woman's Health, and Albert Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Viruses
|August 26, 2023
概括
基因漂移,而不仅仅是选择,塑造了人类乳头瘤病毒 (HPV) 基因组. 随着时间的推移,不同的进化力量影响了HPV基因组结构,甚至影响了最近的变异.
科学领域:
- * 病毒学 病毒学
- * 进化生物学 进化生物学
- * 基因组学 是一个学科.
背景情况:
- * 净化选择影响乳头瘤病毒非同义替代.
- *非编码DNA基因进化在HPV多样化中的作用尚不清楚.
研究的目的:
- * 调查遗传漂移和选择对*阿尔法巴皮洛马病毒*基因组中非编码DNA基因的影响.
- * 了解HPV基因组的进化历史和多样化.
主要方法:
- *对一千多个完整的Alphapapillomavirus基因组进行了基因组学分析.
- * 核酸组成的检查,密码子的使用,三元体的使用,以及13种非编码DNA基因.
- *主要组件分析的应用,祖先状态的重建,和族系学独立的对比.
主要成果:
- *核酸组成,密码子使用和非编码的动机揭示了原始Alphapapillomavirus类型的遗传漂移的基因聚类.
- * CpG和APOBEC3图案显示了显著的古老基因组改变.
- * 进化分析表明,HPV基因组通过遗传漂移和跨时代的不同驱动因素形成了独特的结构.
结论:
- *遗传漂移在结构化 *阿尔法巴皮洛马病毒* 基因组中起着重要作用.
- * 随着时间的推移,不同的进化驱动因素以不同的方式塑造了HPV基因组.
- * 这些进化模式延伸到最近出现的变异系.
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