中国媒介生物学及控制杂志

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不同地区草原革蜱基因组DNA多态性研究

赵红斌1;杨银书2;史智勇1;李强2;常德辉1   

  1. 1兰州军区总医院 兰州730050;2兰州军区军事医学研究所;
  • 出版日期:2005-02-20 发布日期:2005-02-20

Studies on Polymorphic of Genomic DNA of Different Strains of Dermacentor nuttalli

ZHAO Hong-bin*;YANG Yin-shu;SHI Zhi-yong;et al   

  1. General Hospital of Lanzhou Military Command,Lanzhou 730050,China
  • Online:2005-02-20 Published:2005-02-20

摘要: 目的 研究我国不同地区草原革蜱是否有种型差异。方法从新疆阿尔泰、甘肃省武威、平凉地区采集草原革蜱标本,并分别提取它们的DNA,选取9条随机排列碱基序列片段,利用随机扩增多态DNA技术(RandOm Amplified Polym Orphic DNA,RAPD),确定聚合酶链反应(PCR)总体积、反应条件。将扩增产物制备成DNA图谱,比较不同地区草原革蜱基因组DNA的多态性,从分子水平对不同地区草原革蜱进行差异分析。结果3个地区的草原革蜱部分DNA条带相同,但也有完全不同的DNA条带。结论3个地区的草原革蜱DNA存在差异。

关键词: 草原革蜱, 基因组, DNA, RAPD

Abstract: Objective To study whether there are intraspecific differences among the strains ofD.nuttallifrom three different areas. Methods The specimens ofD.nuttalliwere collected from Aertai of Xinjiang autonomous region,Wuwei and Pingliang of Gansu province,and the genomic DAN was extracted respectively from them. The total volume of reaction and conditions of RAPD PCR were defined,9 primers with different arbitrary single chain polynucleotide sequences were selected,the genomic DNA of three strains ofD.nuttalliwas respectively amplified by RAPD,DNA fingerprint maps were constructed with the amplified products,the polymorphism DNA of three strains ofD.nuttalliwas compared,the diversities of three trains ofD.nuttalliwere analyzed at DNA level. Result Some of the amplified DNA fragments are same among three strains,but the other DNA fragments are completely unique to every strain. Conclusion The diversities of genomic DNA among three strains ofD.nuttalliexist.