Aedes aegypti in Senegal:: Genetic diversity and genetic structure of domestic and sylvatic populations
Aedes aegypti in Senegal:: Genetic diversity and genetic structure of domestic and sylvatic populations
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DOI：
10.4269/ajtmh.2008.79.218
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发表时间：
2008-08-01
影响因子：
3.3
通讯作者：
Diallo, Mawlouth
中科院分区：
文献类型：
--
作者：
Huber, Karine;Ba, Yamar;Diallo, Mawlouth
埃及伊蚊是登革热病毒的主要媒介。塞内加尔对登革热流行病学的了解仍然很少。森林传播似乎占主导地位。然而，尽管登革热病毒在森林中传播，并且在城市地区存在病媒，但仅报告了零星病例。Ae。埃及伊蚊是一种多型种。在塞内加尔，在森林走廊地区发现了纯粹的森林形式，在大草原和萨赫勒地区的村庄以及城市地区发现了家庭形式。利用等位酶分析了伊蚊的遗传多样性和遗传结构。埃及伊蚊种群在生态特征上的差异。塞内加尔种群结构明显，但遗传分化水平较低。Ae。与“森林”种群相比，来自“家养”种群的埃及伊蚊表现出较低的遗传多样性和较低的遗传分化。这些结果表明，环境条件、生态因素和人类活动可能会影响伊蚊的遗传结构。在塞内加尔的埃及伊蚊种群。
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.