摘要
曼氏血吸虫及日本血吸虫成虫基因组DNA经内切酶BglII、BamHI、XbaI、或EcoRI消化后,与^(32)P标记的pSM889探针杂交,或经EcoRI消化后与pSM389探针杂交。上述两种情况下的杂交带型在两种血吸虫之间均有明显区别。日本血吸虫湖北、湖南、江西、浙江及云南隔离群成虫基因组DNA经EcoRI消化后与探针pSM389的杂交带型显示各隔离群间主带相同,而次要带则有不同程度的区别。其中湖南、湖北及浙江隔离群的次要带型互相接近,而江西及云南隔离群的次要带型与前3个隔离群有明显区别,它们二者之间亦显著不同。本工作表明非主要杂交带型可作为日本血吸虫种下分类的依据。
Genomic DNA from Schistosoma mansoni and S. japonicum adult worms was hybridized to a 32p-labelled pSM 889 probe after cleavage by restriction endonuclease BgIII, BamHI, Xbal and EcoRI, or to a 32p-labelled pSM389 probe after cleavage by EcoRI. The resulting hybridization banding patterns were significantly different between the two species. Genomic DNA from S. japonicum adult worms of Hunan, Hubei, Jiangxi, Zhejiang and Yunnan isolates was hybridized to a 32p-labelled pSM389 probe after cleavage by EcoRI. The major hybridization bands were identical while the minor bands were more or less different among the isolates. Of them,isolates Hunan, Hubei and Zhejiang have similar minor bands while isolates Jiangxi and Yunnan have minor bands significantly different from those of the above three isolates and also markedly distinct from those of each other. These results indicate that the major hybridization banding patterns are unique to schistosome species while the minor banding patterns may serve as the basis for strain differentiation.
出处
《中国寄生虫学与寄生虫病杂志》
CAS
CSCD
北大核心
1993年第1期1-5,共5页
Chinese Journal of Parasitology and Parasitic Diseases
关键词
血吸虫
曼氏血吸虫
DNA杂交
鉴定
Schistosoma japonicum, Schistosoma mansoni ,DNA hybridization
