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番鸭细小病毒强、弱毒株VP2基因的序列测定比较 总被引:2,自引:0,他引:2
According to the complete nucleotide sequence of Muscovy duck parvovirus registered in the gene bank, two modified primers (LHMP7/LHMP8) were designed and, for each of them, a restriction endonuclease recognition site, SacⅡ or KpnⅠ, was included respectively. The DNA encoding VP2 structural protein of the wild strain MDPV Q and the attenuated strain MDPV 26 which had been derived by continued passage of virulent wild type (MDPV Q) in Muscovy duck embryo were amplified by PCR and recombined into T vector and sequenced respectively. It shows that both DNA encoding VP 2 structural protein of MDPV Q and MDPV which has been registered in the gene bank had the high homology (97.9%). MDPV 26 and MDPV Q displayed 99.7% identity, and shared 98.3% homology with that of reported MDPV. 相似文献
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