In order to investigate the classification of Trihicnella swine isolate from Heilongjiang Province, the gene fragment in ribosome 28S rRNA was cloned and sequenced. The results showed that Trihicnella swine isolate from Heilongjiang Province was closed and belonged to Trichinella spiralis by sequence analysis. To some extent, the result was consistent with the traditional classfication and provided a base for the traditional taxonomy.%为了探讨所采集旋毛虫的分类,利用PCR方法克隆了猪旋毛虫黑龙江隔离种核糖体28S rRNA序列的基因片段.序列分析结果表明,猪旋毛虫黑龙江隔离种与旋毛形线虫(Trichinella spiralis,T1)的进化关系较近,确定为旋毛形线虫(Trichinella spiralis).结果与传统的分类结果基本一致,为传统的分类学方法提供了新的理论依据.
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