摘要
将猪肺炎支原体不同毒力株培养获得菌体,提取基因组DNA,PCR扩增黏附因子P97基因,对PCR产物进行测序,将猪肺炎支原体不同毒力株的P97基因序列的碱基组成和推导的氨基酸序列进行比较,分析猪肺炎支原体黏附因子P97基因变化与致病性的关系。结果表明,猪肺炎支原体黏附因子P97基因与菌株致病性有一定关系,但除P97基因之外,还有其他与致病有关的基因存在。
The genomic DNA was extracted from different attenuated Mycoplasma hyopneumoniae strains.The adhesion gene P97 were amplified by PCR,and then were sequenced.The base composition of DNA sequences of P97 and amino acid sequence deduced from different attenuated strains of Mycoplasma hyopneumoniae were compared,and the relationship between genetic variation and virulence was analyzed.The results showed that there was some relationship between genetic variation and virulence of Mycoplasma hyopneumoniae.But there were other genes associated with virulence besides P97.
出处
《江苏农业学报》
CSCD
北大核心
2010年第3期522-525,共4页
Jiangsu Journal of Agricultural Sciences
基金
农业科技成果转化基金项目(2009GB2C100129)
公益性行业(农业)科研专项(200803020)
江苏省农业科技自主创新基金项目[CX(09)118]
关键词
猪肺炎支原体
黏附因子
毒力
序列
Mycoplasma hyopneumoniae
adhesion factor
virulence
sequence