Caenorhabditis elegans, a kind of free-living nematodes, has been used as study of genetic function of parasitic nematod摘要秀丽隐杆线虫作为一种模式线虫，已广泛应用于寄生性线虫基因功能的研究以及寄生性线虫疫苗候选抗原基因的表达。