The positive detection rates of cps2/gdh+/epf+/mrp+/sly+/fbps+/orf2+ were 96% (24/25) and only one virulent SS2 isolate was cps2/gdh+/epf-/mrp+/sly+/fbps+/orf2+.

 
  • 结合上述毒力因子分布情况,根据SS2的cps2J、mrp、orf2基因(virulent-associate sequence orf2)设计合成三对引物,建立三重PCR检测方法,并对PCR扩增产物进行测序、酶切、特异性及敏感性实验。
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