›› 2011, Vol. 38 ›› Issue (5): 117-120.

• 遗传繁育 • Previous Articles     Next Articles

Analysis in Heredity and Variation of the Arginine-deiminase Gene Sequence of Streptococcus suis Serotyp 2 Isolation Strains

YIN Guo-you, SUN Jie, CHEN Lan-ying, XIE Zhao-hui, WANG Fu-mei   

  1. Department of Bioengineering,Henan University of Urban Construction,Pingdingshan 467044,China
  • Received:2010-10-25 Revised:1900-01-01 Online:2011-05-20 Published:2011-05-20

Abstract: The aim was to analyze the reason and epidemic trend of Streptococcus suis serotype 2, and provide theoretical basis for preventing and controlling it.According to the sequence of arginine deiminase gene published by the Genbank,The primers was designed for RT-PCR amplification of ADS isolates from Henan obtaining its DNA fragments,which were cloned into pMD18-T vector respectively and sequenced. The sequences of ADS genes were analysed by DNAStar,analysed nucleotide sequence homology and drawed phylogenetic tree. The nuclear acid analysis indicated that the homology was 94.9% to 100% between the isolation strains,the homology was 100% between HN5 and HN6 from the same region,and the homology of nuclear acid sequence was 95.9% to 99.2% between Henan isolation strains and SX332 issued by the GenBank. The homology of ADS gene sequence was higher and genetic relationship was near during prevalence strains in the same region,and it was far in different regions.

Key words: arginine-deiminase; sequence analysis; PCR

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