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圈病毒的Codon使用偏差及其适应宿主

Quanming Xu¹, Jie Cao¹, Kul Raj Rai²

¹Scientific Research and Experiment Center, Fujian Police College, Fuzhou 350007, China.

Poultry science

|May 7, 2024

概括

圈病毒 (GoCV) 显示轻微的编码器使用偏差,自然选择是其进化和宿主适应的主要驱动因素. 这项研究分析了144种GoCV菌株,以了解病毒遗传模式.

科学领域:

病毒学病毒学
分子生物学分子生物学
遗传学是一个遗传学.

背景情况:

环病毒 (GoCV) 是一种影响的免疫抑制病毒,造成经济损失.
病毒密码子的使用模式为进化历史和宿主适应提供了洞察力.
了解GoCV的遗传构成对于疾病管理和疫苗开发至关重要.

研究的目的:

为了全面分析144个子循环病毒菌株的子使用模式.
调查GoCV.中影响codon使用偏差的因素.
阐明GoCV的进化动态和宿主适应机制.

主要方法:

从GenBank.获取了GoCV菌株的编码序列 (Rep和Cap) 和基因组.
分析了使用有效编码数 (ENC),组成和相对同义编码数使用 (RSCU) 的编码使用模式.
利用ENC-GC3s图表,中立图表和对应分析 (COA) 来评估进化力量和促成因素.

主要成果:

GoCV菌株表现出相对相似的编码体使用,略有偏差,主要有利于A和G结尾的编码体.
通过ENC分析,显示了总体低的代码使用偏差 (CUB).
自然选择被确定为塑造GoCV编码子使用的主要力量,突变压力起到较小的作用. 疏水性和地理分布也影响着子的使用变化.

结论:

圈病毒表现出轻微的编码子使用偏差,主要受到自然选择的影响.
这些发现增强了对GoCV进化和宿主适应性的理解.
这项研究为未来的GoCV研究和疫苗设计提供了宝贵的见解.

关键词:

codon 使用偏差的循环病毒 (circovirus) 是一种病毒.宿主适应能力宿主适应能力突变是一种突变.自然选择自然选择

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