Yahia H, Ready P D, Hamdani A, Testa J M, Guessous-Idrissi N
Faculté de Médecine et Pharmacie, Université Hassan II Ain Chock, Casablanca, Morocco.
Parasite. 2004 Jun;11(2):189-99. doi: 10.1051/parasite/2004112189.
Phlebotomus sergenti was identified morphologically in samples from three Moroccan foci of leishmaniasis caused by Leishmania tropica in the provinces of Azilal, Essaouira and Taza. Three primary mitochondrial DNA lineages were identified, and they could be markers for regionally distributed cryptic species. Greater mitochondrial diversity in Azilal indicated that this central province could have been the origin of dispersal of P. sergenti or the zone of secondary contact. All except one of the 21 mitochondrial haplotypes showed a marked regional distribution, and this indicates that vector control would not always be followed by rapid, long-distance reinvasion. Only mitochondrial haplotype SER18 was a putative marker for long-distance dispersal, for which there is no evidence of human assistance.
在阿齐拉勒、索维拉和塔扎等省由热带利什曼原虫引起的摩洛哥三个利什曼病疫源地的样本中，通过形态学鉴定出了塞尔吉白蛉。鉴定出了三个主要的线粒体DNA谱系，它们可能是区域分布的隐性物种的标记。阿齐拉勒线粒体多样性更高，表明这个中部省份可能是塞尔吉白蛉扩散的起源地或二次接触区域。21个线粒体单倍型中除一个外，其他所有单倍型都呈现出明显的区域分布，这表明病媒控制之后并不总是会迅速出现远距离的再次入侵。只有线粒体单倍型SER18是远距离扩散的一个推定标记，且没有证据表明存在人类协助扩散的情况。
