CHEN Wei-Min, CUI Chi-Zhong, DUAN Yu-You and LIU Yue-Long. Amplification and Cloning of Chicken Anemia Virus whole genomic DNA by Polymerase Chain Reaction[J]. Virologica Sinica, 1999, 14(1): 80-86.
Citation: CHEN Wei-Min, CUI Chi-Zhong, DUAN Yu-You, LIU Yue-Long. Amplification and Cloning of Chicken Anemia Virus whole genomic DNA by Polymerase Chain Reaction .VIROLOGICA SINICA, 1999, 14(1) : 80-86.

用PCR扩增和克隆鸡传染性贫血病毒基因组DNA陈为民 崔治中 段玉友等(80)

  • 根据已发表的序列,分别在鸡贫血病毒(CAV)环形基因组DNA(全长2.3kb)的EcoRI位点和BamHI位点的两侧选择适当序列合成两对引物,用PCR技术,从斑点杂交检测到病毒核酸的CAV感染的MDCCRP1细胞基因组DNA中,分别扩增出包含EcoRI和BamHI分割开的病毒基因组两部分(1.5kb和0.8kb)约1.5kb和约1.25kb的两个片段。再将其中相应序列拼接克隆进pUC18载体,获得包含CAV全基因组序列DNA片段的克隆质粒pCAV2.4。酶切分析表明,该质粒具有预期的BamHI位点、PstI位点、HindⅢ位点,而预期的EcoRI位点消失。重组质粒插入DNA片段的两端序列分析表明,质粒pCAV2.4是包含CAV全基因组序列的重组质粒,插入DNA片段序列中的EcoRI位点序列发生了一个碱基突变。

Amplification and Cloning of Chicken Anemia Virus whole genomic DNA by Polymerase Chain Reaction

  • By two pairs of primers complementory to the published sequences at the both sides of EcoRI site and BamHI site on CAV circular genome, two DNA fragments containing two parts (1.5 kb and 0.8 kb) of CAV genome divided by EcoRI and BamHI sites were amplified by PCR from the circular CAV genome (2.3 kb) detected by dot blot in genomic DNA of CAV infected RP1 cells. Through re ligation of the selected sequences from the amplified fragments, the whole CAV genomic DNA was cloned into pUC18, and the recombinant plasmid was designated as pCAV2.4. Restriction endonucleases analysis of pCAV2.4 showed that there were sites of BamHI、PstI、HindⅢ,but no site of EcoRI. Two ends of cloned DNA sequence analysis showed that the recombinant plasmid pCAV2.4 containes the whole genomic DNA sequence of CAV, and that the site sequence of EcoRI in the cloned DNA was changed by one base substitution.

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    Amplification and Cloning of Chicken Anemia Virus whole genomic DNA by Polymerase Chain Reaction

    • 1. College Animal Science and Veterinary Medicine Yangzhou University,Yangzhou 225009

    Abstract: By two pairs of primers complementory to the published sequences at the both sides of EcoRI site and BamHI site on CAV circular genome, two DNA fragments containing two parts (1.5 kb and 0.8 kb) of CAV genome divided by EcoRI and BamHI sites were amplified by PCR from the circular CAV genome (2.3 kb) detected by dot blot in genomic DNA of CAV infected RP1 cells. Through re ligation of the selected sequences from the amplified fragments, the whole CAV genomic DNA was cloned into pUC18, and the recombinant plasmid was designated as pCAV2.4. Restriction endonucleases analysis of pCAV2.4 showed that there were sites of BamHI、PstI、HindⅢ,but no site of EcoRI. Two ends of cloned DNA sequence analysis showed that the recombinant plasmid pCAV2.4 containes the whole genomic DNA sequence of CAV, and that the site sequence of EcoRI in the cloned DNA was changed by one base substitution.

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