Genomic sequencing and analysis of Chilli ringspot virus, a novel potyvirus
文献类型: 外文期刊
第一作者: Gong, Dian
作者: Gong, Dian;Wang, Jian-Hua;Lin, Zhan-Song;Zhang, Shao-Yan;Zhang, Yu-Liang;Yu, Nai-Tong;Liu, Zhi-Xin;Gong, Dian;Lin, Zhan-Song;Zhang, Shao-Yan;Yu, Nai-Tong;Xiong, Zhongguo;Xiong, Zhongguo
作者机构:
关键词: ChiRSV;Potyvirus;Genome;Phylogeny;Motif
期刊名称:VIRUS GENES ( 影响因子:2.332; 五年影响因子:2.0 )
ISSN: 0920-8569
年卷期: 2011 年 43 卷 3 期
页码:
收录情况: SCI
摘要: Chilli ringspot virus (ChiRSV), a novel potyvirus, was recently found in Hainan, China with high prevalence. The genomic sequence of the ChiRSV-HN/14 isolate was determined by sequencing overlapping cDNA segments generated by reverse transcription polymerase chain reaction with degenerate and/or specific primers. ChiRSV genome (GenBank Acc. no. JN008909) comprised of 9,571 nucleotides (nt) excluding the 3'-terminal poly (A) tail and contained a large open reading frame of 9,240 nt encoding a large polyprotein of 3,079 amino acids with predicted Mr of 349.1 kDa. A small, overlapping PIPO coding region was also found to span from nt 2,913 to 3,095, with a capacity to encode a peptide of 60 amino acids. ChiRSV shares sequence identities of only 48.5-65.4 and 42.9-68.7% with closely related potyviruses at the nucleotide and the amino acid levels, respectively. Phylogenetic analysis of the genomic sequences provided further evidence that ChiRSV is a distinct species of the Potyvirus genus. ChiRSV-HN/14 is most closely related to Tobacco vein banding mosaic virus and two other pepper-infecting potyviruses.
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