相关实验视频

Updated: May 28, 2025

Mosquito-Associated Virus Isolation from Field-Collected Mosquitoes

Mosquito-Associated Virus Isolation from Field-Collected Mosquitoes

Published on: August 31, 2022

在中国湖州,对SFTS病毒的全基因组序列分析

Deshun Xu¹, Lei Ji¹, Xiaofang Wu¹

¹Huzhou Center for Disease Control and Prevention, Huzhou, China.

|February 11, 2025

概括

在中国湖州,对严重发烧与血小板衰竭综合征病毒 (SFTSV) 的基因组分析显示了多种基因型,主要是D型. 该研究确定了所有病毒段的突变,M段显示了最高的突变率.

科学领域:

病毒学病毒学
基因组学就是基因组学.
公共卫生公共卫生

背景情况:

严重发烧与血小板缺血综合征 (SFTS) 是一种危险的传播疾病,由SFTS病毒 (SFTSV) 引起.
了解SFTSV的遗传构成对于追踪其传播和制定控制策略至关重要.

研究的目的:

来自中国湖州的SFTSV分离物的全长基因组的特征.
分析这些SFTSV菌株的遗传多样性,进化和突变模式.

主要方法:

在2019年至2023年期间收集的7个SFTSV样本的全基因组测序.
使用MEGA软件进行生物信息分析,以评估基因位置,进化和序列身份.

主要成果:

对所有七个分离物获得了完整的基因组序列 (11,490 bp),包括L,M和S段.
SFTSV分离物属于多种基因型,主要是D型.
与参考菌株观察到高核酸 (>93.67%) 和氨基酸 (>97.18%) 序列一致性.
在所有三个部分都检测到突变,M部分呈现出最高的突变率,主要是基底转换.

结论:

湖州的SFTSV表现出遗传多样性,其中基因型D占主导地位.
正在进行的病毒进化是由突变表明的,特别是在M细分上.
需要对基因型分布,突变部位和氨基酸变异进行进一步的研究,以告知公共卫生反应.

更多相关视频

Validating Whole Genome Nanopore Sequencing, using Usutu Virus as an Example

Validating Whole Genome Nanopore Sequencing, using Usutu Virus as an Example

Published on: March 11, 2020

Identification of Functionally-Relevant Lentivirus Integration Sites in an Insertional Mutagenesis Cell Library

Identification of Functionally-Relevant Lentivirus Integration Sites in an Insertional Mutagenesis Cell Library

Published on: January 10, 2025

相关概念视频

Viral Mutations

Viral Mutations

A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material...

Viral Recombination

Viral Recombination

Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.