›› 2010, Vol. 37 ›› Issue (3): 109-111.

• 生物技术 • 上一篇    下一篇

猫杯状病毒全基因组的克隆及序列分析

郑翠玲1,2,3,向华1,3,宣华1,3,王延树1,3,严悌昆1,3   

  1. (1.广东省农业科学院兽医研究所, 广州 510640; 2.河北唐山职业技术学院, 唐山 063004;3.吉林大学畜牧兽医学院, 长春 130062)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-03-20 发布日期:2010-03-20
  • 通讯作者: 向华

Cloning and Sequence Analysis of Feline Calicivirus Complete Genome

ZHENG Cui-ling1,2,3, XIANG Hua1,3, XUAN Hua1,3, WANG Yan-shu1,3, YAN Ti-kun1,3   

  1. (1.Institute of Veterinary Medicine GAAS, Guangzhou 510640, China; 2.Tangshan Vocational Technical College of Hebei, Tangshan 063004, China; 3.College of Veterinary Medicine Jilin University, Changchun 130062, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-03-20 Published:2010-03-20
  • Contact: XIANG Hua

摘要: 采用RT-PCR和重组PCR扩增了猫杯状病毒(feline calicivirus, FCV) CH-GD株的全基因,并进行了序列测定,用DNAStar软件对其核苷酸序列和氨基酸序列进行比较分析。结果表明,首次分离于中国广东的CH-GD株与各参考毒株有较大的差异。CH-GD株与各参考毒株之间的同源性仅为75.4%~77.1%,明显低于各参考毒株之间的同源性(78.9%~99.9% )。同时遗传进化树显示,14个分离株形成两大分支,CH-GD株独自在一分支,各分离株无明显的地域性差异。对FCV衣壳蛋白6个区(A~F)的分析结果发现,CH-GD株中A~F区的特点与报道的相符。此外还发现,CH-GD株有3个区域的3个连续的氨基酸发生了变异,与参考毒株相比,CH-GD株在这3个区域的抗原性和亲水性也都发生了相应的变化。

关键词: 猫杯状病毒; 全基因组; 克隆; 序列分析

Abstract: Complete sequence of feline calicivirus (FCV) CH-GD strain was amplified by RT-PCR and recombinant PCR. DNAStar software was used to analyse nucleotide sequences and amino acid sequences. The homology of CH-GD strain which was isolated first in Guangdong province of China with reference strains was between 75.4% and 77.1%. It was lower than that was between reference strains(78.9% and 99.9%). There were two branches between 14 strains. CH-GD strain was in one branch and there was no evident difference in district. Analysing six regions of FCV capsid protein, the characteristic of A-F region was equal to that had been reported. Antigenicity and hydrophilicity were different from reference strains in three regions where three consecutive amino acids were variation.

Key words: feline calicivirus; complete genome; clone; sequence analysis

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