Centro Nacional de Diagnóstico e Investigación en Endemo-epidemias, Buenos Aires, Argentina.
Mem Inst Oswaldo Cruz. 2010 Nov;105(7):928-30. doi: 10.1590/s0074-02762010000700016.
Lutzomyia longipalpis s.l. is the primary vector of Leishmania (L.) infantum in the New World. In this study, male Lutzomyia longipalpis specimens from Posadas, Argentina were characterized for two polymorphic markers: the male sex pheromone and the period (per) gene. The male sex pheromone was identified as (S)-9-methylgermacrene-B, the same compound produced by Lu. longipalpis from Paraguay and many populations from Brazil. The analysis of per gene sequences revealed that the population from Argentina is significantly differentiated from previously studied Brazilian populations. Marker studies could contribute to the understanding of the distribution and spread of urban American visceral leishmaniasis, thus aiding in the design of regional surveillance and control strategies.
长刺舌蝇 s.l. 是新世界中利什曼原虫（L.）婴儿的主要传播媒介。在这项研究中，来自阿根廷波萨达斯的雄性长刺舌蝇标本被标记为两种多态性标记：雄性信息素和周期（per）基因。雄性信息素被鉴定为（S）-9-甲基-金合欢烯-B，与巴拉圭的 Lu. longipalpis 和来自巴西的许多种群产生的相同化合物。per 基因序列分析表明，来自阿根廷的种群与先前研究的巴西种群有明显的分化。标记研究有助于了解城市美洲内脏利什曼病的分布和传播，从而有助于设计区域监测和控制策略。
