Analysis of Codon Usage and Nucleotide Compositional Traits of Morbilliviruses
文献类型: 外文期刊
第一作者: Yan, Feng-Chao
作者: Yan, Feng-Chao;Dou, Yong-Xi;Chen, Lei
作者机构:
关键词: Morbillivirus;nucleotide composition;codon usage bias;host;protein
期刊名称:JOURNAL OF ANIMAL AND VETERINARY ADVANCES ( 影响因子:0.365; 五年影响因子:0.359 )
ISSN: 1680-5593
年卷期: 2012 年 11 卷 18 期
页码:
收录情况: SCI
摘要: In this study, the Relative Synonymous Codon Usage (RSCU) values, Effective Number of Codon (ENC) values, nucleotide contents and dinucleotide were used to consider codon usage pattern of each structure protein gene and genome among the members of Morbillivirus genus. The results showed that the overall extent of codon usage bias in Morbilliviruses is low (mean ENC = 54.84>35). The good correlation between the C+G) 12% and (G+C) 3% suggested that the mutational pressure rather than natural selection is the main factor that determines the codon usage bias and base component in Morbilliviruses. It is observed that synonymous codon usage pattern in Morbilliviruses can be divided into two groups. Under-represented CpG is a characteristic of all the members in Morbilliviruses. It may be a strategy to adapt to the host These analyses not only provided an insight into the variation of codon usage pattern among the genomes of Morbilliviruses but also were helpful in understanding the processes of the evolution of Morbilliviruses.
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