中国寄生虫学与寄生虫病杂志 ›› 2005, Vol. 23 ›› Issue (3): 5-149.

• 论著 • 上一篇    下一篇

云南微小按蚊A和C栖性的比较研究

郑彬1;汤林华1;马雅军2;施文琦1;周水森1;王学忠3   

  1. 1 中国疾病预防控制中心寄生虫病预防控制所,世界卫生组 织疟疾、血吸虫病和丝虫病合作中心, 上海 200025;2 第二军医大学病原生物学教研室, 上海 200433; 3 云南省寄生虫病防治所, 思茅 665000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2005-06-30 发布日期:2005-06-30

Comparative Study on the Resting Habit of Anopheles minimus Aand Anopheles minimus C in Yunnan Province

ZHENG Bin;TANG Lin-hua;MA Ya-jun;SHI Wen-qi, ZHOU Shui-sen;WANG Xue-zhong   

  1. National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention,WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2005-06-30 Published:2005-06-30

摘要: 目的 对我国云南地区微小按蚊A、C栖息习性进行初步探讨。 方法 在云南省勐腊县和元江县各选取一个自然村的人房和牛房,采用紫外灯通宵悬挂诱捕法采集蚊虫样本,将经形态学鉴定的微小按蚊的样本,分别取单蚊蚊腿,经多重PCR方法鉴别为微小按蚊A或C,统计其在人房和牛房的分布差异。对疑为微小按蚊A/C杂合子的,采用等位基因特异扩增法、PCR产物酶切片段长度多态性分析和测定D3序列进行鉴定。 结果 在人房中,微小按蚊A所占比例为21.4%,微小按蚊C为78.6%;牛房中,微小按蚊A所占比例为18.5%,微小按蚊C为81.5%,分布差异无统计学意义(χ2=0.4157,P>0.05)。疑为微小按蚊A/C杂合子的样本,等位基因特异扩增法(PCR-ASA)、PCR产物酶切片段长度多态性分析(PCR-ASA)结果同时出现微小按蚊A、C的特征条带(PCR-ASA: 376、294和112 bp, PCR-RFLP: 108、268和376 bp),其D3序列在微小按蚊A与C的所有5个变异位点均出现杂合峰信号,即同时具有微小按蚊A和C相应碱基的峰信号。 结论 尚未发现我国云南微小按蚊A、C在人房和牛房的栖息比例存在差异。在我国云南勐腊县首次发现微小按蚊A/C杂合子。

关键词: 微小按蚊, 栖息习性, 杂合子

Abstract: Objective To compare the difference of resting habitat between Anopheles minimus A and An. minimus C in Yunnan Province. Methods A village was selected in Mengla and Yuanjiang County respectively to collect mosquitoes by hanging ultraviolet lamps inside the cattle pen and human dwellings. The samples were identified by multiplex-PCR after morphological examination. Suspicious An. minimus A/C hybrid samples were identified by PCR-ASA, PCR-RFLP and D3 region sequence. Results In human dwellings, the proportion of An. minimus A and C was 21.35% and 78.65%, and in cattle pen, 28.54% and 71.46% respectively. As for the An. minimus A/C hybrid, the result of PCR-ASA and PCR-RFLP displayed the pattern of both An. minimus A and An. minimus C (PCR-ASA: 376、 294 and 112 bp, PCR-RFLP:108、 268 and 376 bp), the D3 sequence displayed heterozygosis in the variation place of An. minimus A and An. minimus C, which means that the hybrid possesses the signal of both An. minimus A and An. minimus C. Conclusion There is no resting habit difference between An. minimus A and An. minimus C in Yunnan Province. In Mengla County, 5 An. minimus A/C hybrids have been found for the first time.

Key words: Anopheles minimus, Resting habit, An. minimus A/C hybrid