Noireau F, Zegarra M, Ordoñez J, Gutierrez T, Dujardin J P
Institut Français de Recherche Scientifique pourle Développement en Coopération (ORSTOM-IRD), La Paz, Bolivia.
Mem Inst Oswaldo Cruz. 1999 May-Jun;94(3):347-51. doi: 10.1590/s0074-02761999000300011.
The genetic population of Triatoma sordida group 1, a secondary vector of Chagas disease in Bolivia, was studied by multi-locus enzyme electrophoresis. A total of 253 nymphal and adult specimens collected from seven neighbouring localities in the Velasco Province, Department of Santa Cruz, were processed. The relatively low genetic variability was confirmed for this species (rate of polymorphism: 0.20). The absence of genetic disequilibrium detected within the seven localities was demonstrated. A geographical structuration appears between localities with distances greater than 20 km apart. Although T. sordida presents a relatively reduced dispersive capacity, its panmictic unit is wider than compared with T. infestans. Genetic distances between T. sordida populations were correlated with geographic distance. Gene flow between geographic populations of T. sordida provides an efficient framework for effective vigilance and control protocols.
通过多位点酶电泳对玻利维亚恰加斯病的次要传播媒介——污秽锥蝽1组的遗传种群进行了研究。对从圣克鲁斯省贝拉斯科省七个相邻地区采集的总共253只若虫和成虫标本进行了处理。该物种的遗传变异性相对较低（多态性率：0.20）。在七个地区内未检测到遗传不平衡。在相距超过20公里的地区之间出现了地理结构。尽管污秽锥蝽的扩散能力相对较低，但其随机交配单位比侵扰锥蝽更广泛。污秽锥蝽种群之间的遗传距离与地理距离相关。污秽锥蝽地理种群之间的基因流动为有效的监测和控制方案提供了一个有效的框架。
