中国寄生虫学与寄生虫病杂志 ›› 2004, Vol. 22 ›› Issue (4): 7-226.

• 论著 • 上一篇    下一篇

七种媒介硬蜱基因组随机扩增多态性DNA分析

杨银书1,赵红斌2,第五进学1,张继军1,史智勇2
  

  1. 1 兰州军区军事医学研究所,兰州 730020 2 兰州军区总医院,兰州 730050
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-08-30 发布日期:2004-08-30

Random Amplified Polymorphic DNA Analysis of the Genomes Among 7 Species of Ticks

YANG Yin-shu,ZHAO Hong-bin,DI WU Jin-xue,ZHANG Ji-jun,SHI Zhi-yong
  

  1. Military Medical Institute of Lanzhou Military Command,Lanzhou,730020,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-08-30 Published:2004-08-30

摘要:   目的 研究7种硬蜱的基因组随机扩增多态性DNA(RAPD)以及种间的遗传距离。 方法 用5条不同的多聚核苷酸单链引物对草原革蜱、森林革蜱、青海血蜱、台湾血蜱、刻点血蜱、龟形花蜱、卵形硬蜱7种硬蜱基因组DNA进行随机扩增,分析DNA图谱并计算 7种硬蜱间的遗传距离。 结果  7种硬蜱基因组随机扩增产物均有各自独特的DNA条带,种间的平均遗传距离为071。 结论 RAPD技术可以区分这7种硬蜱。

关键词: 蜱, 基因组, 随机扩增多态DNA技术, 变异(遗传学), 聚类分析

Abstract:  Objective To study genomic polymorphic DNA and genetic distance of 7 species of ticks. Methods Ticks used in this study were Dermacentor nuttalli, D.silvarum, Haemaphysalis qinghaiensis, H.formosensis, H.punctata, Amblyomma testudinarium, and Ixodes ovatus. DNA extracts of the 7 species of ticks were amplified by random amplified polymorphic DNA (RAPD) and PCR technique using 5 primers with different arbitrary single chain polynucleotide sequences. DNA fingerprint maps were analyzed and the genetic distance among 7 species of ticks were counted. Results The amplified products of the 7 species of ticks by RAPD all showed their specific DNA band. The average genetic distance among them was 071. Conclusion RAPD can differentiate the 7 species of ticks.

Key words: Ticks, Genome, Random amplified polymorphic DNA technique(RAPD), Variation (Genetics), Cluster analysis