Bioinformatics analysis of rabbit haemorrhagic disease virus genome
文献类型: 外文期刊
第一作者: Tian, Xiao-ting
作者: Tian, Xiao-ting;Li, Bao-yu;Zhang, Liang;Jiao, Wen-qiang;Liu, Ji-xing
作者机构:
关键词: Rabbit haemorrhagic disease virus (RHDV);Codon usage;Evolution;Expression
期刊名称:VIROLOGY JOURNAL ( 影响因子:4.099; 五年影响因子:3.719 )
ISSN: 1743-422X
年卷期: 2011 年 8 卷
页码:
收录情况: SCI
摘要: Background: Rabbit haemorrhagic disease virus (RHDV), as the pathogeny of Rabbit haemorrhagic disease, can cause a highly infectious and often fatal disease only affecting wild and domestic rabbits. Recent researches revealed that it, as one number of the Caliciviridae, has some specialties in its genome, its reproduction and so on. Results: In this report, we firstly analyzed its genome and two open reading frameworks (ORFs) from this aspect of codon usage bias. Our researches indicated that mutation pressure rather than natural is the most important determinant in RHDV with high codon bias, and the codon usage bias is nearly contrary between ORF1 and ORF2, which is maybe one of factors regulating the expression of VP60 (encoding by ORF1) and VP10 (encoding by ORF2). Furthermore, negative selective constraints on the RHDV whole genome implied that VP10 played an important role in RHDV lifecycle. Conclusions: We conjectured that VP10 might be beneficial for the replication, release or both of virus by inducing infected cell apoptosis initiate by RHDV. According to the results of the principal component analysis for ORF2 of RSCU, we firstly separated 30 RHDV into two genotypes, and the ENC values indicated ORF1 and ORF2 were independent among the evolution of RHDV.
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