Aedes aegypti in Senegal:: Genetic diversity and genetic structure of domestic and sylvatic populations

被引：33

作者：

Huber, Karine ^{[1
]}

Ba, Yamar ^{[1
]}

Dia, Ibrahima ^{[1
]}

Mathiot, Christian ^{[1
]}

Sall, Amadou A. ^{[1
]}

Diallo, Mawlouth ^{[1
]}

机构：

[1] Inst Pasteur, Dakar, Senegal

来源：

AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE | 2008年 / 79卷 / 02期

关键词：

D O I：

10.4269/ajtmh.2008.79.218

中图分类号：

R1 [预防医学、卫生学];

学科分类号：

1004 ; 120402 ;

摘要：

Aedes aegypti is the main vector of dengue viruses. The epidemiology of dengue fever remains poorly understood in Senegal. A sylvatic transmission seems to predominate. However, despite the sylvatic circulation of the dengue virus and the presence of vectors in urban areas, only sporadic cases have been reported. Ae. aegypti is a polytypic species. In Senegal, a purely sylvatic form is found in the forest gallery areas and a domestic form is found in the villages in savannah and sahelian areas and in urban areas. Using allozymes, we analyzed the genetic diversity and the genetic structure of Ae. aegypti populations differing in their ecological characteristics. Populations from Senegal were significantly structured but with a low level of genetic differentiation. Ae. aegypti from the "domestic" populations show a decreased genetic diversity and a lower genetic differentiation compared with "sylvatic" populations. These findings suggest that environmental conditions, ecological factors, and human activities may impact the genetic structure of Ae. aegypti populations in Senegal.

引用

页码：218 / 229

页数：12

共 46 条

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