title: Codon usage bias of the phosphoprotein gene of spring viraemia of carp virus and high codon adaptation to the host.
abstract: In this study, we calculated the relative synonymous codon usage (RSCU) value and the effective number of codons (ENC) value to carry out principal component analysis (PCA) and correlation analysis of the codon usage pattern of the phosphoprotein gene (P gene) of spring viraemia of carp virus (SVCV). The synonymous codon usage pattern in P genes is geography-specific, based on PCA analysis. The high correlation between (G + C)1,2 % and (G + C)3 % suggests that mutational pressure rather than natural selection is the main factor that determines the codon usage and base components in P genes. At least 40 out of 59 synonymous codons are similarly selected in all functional genes within five complete SVCV genomes, and the hosts based on the RSCU data. These results not only provide insight into variations in the codon usage pattern of SVCV but also may help in understanding the processes governing the evolution of SVCV.
authors: Guangdong Public Lab. of Veterinary Public Health, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China, mayanping2292@163.com.
authors: Yan-ping
authors: YP
authors: Ma
authors: Zhi-wei
authors: ZW
authors: Zhou
authors: Zhen-xing
authors: ZX
authors: Liu
authors: Le
authors: L
authors: Hao
authors: Jiang-yao
authors: JY
authors: Ma
authors: Guo-qing
authors: GQ
authors: Feng
authors: Zhi-ling
authors: ZL
authors: Liang
authors: Hao
authors: H
authors: Ke
mesh_terms: D000222:Adaptation, Physiological / Q000235:genetics; D000818:Animals; D002347:Carps; D003062:Codon; D005393:Fish Diseases / Q000821:virology*; D015967:Gene Expression Regulation, Viral / Q000502:physiology; D010750:Phosphoproteins / Q000235:genetics / Q000378:metabolism*; D010802:Phylogeny; D012209:Rhabdoviridae / Q000235:genetics / Q000378:metabolism*; D018353:Rhabdoviridae Infections / Q000662:veterinary* / Q000821:virology; D014764:Viral Proteins / Q000235:genetics / Q000378:metabolism
chemical_list: D003062:Codon; D010750:Phosphoproteins; D014764:Viral Proteins