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Genetic differentiation of Aedes aegypti (Diptera : Culicidae), the major dengue vector in Brazil

机译:巴西主要的登革热媒介埃及伊蚊(Diptera:Culicidae)的遗传分化

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摘要

In 2000, Brazil reported 180,137 cases of dengue, approximate to80% of the total in the Americas. However, little is known about gene flow among the vector populations in Brazil. Random amplified polymorphic DNA (RAPD) was used to study the genetic structure of Aedes aegypti in 15 populations from five states, with a range extending 2,800 km. An analysis of 47 polymorphic RAPD loci estimated gene flow at the macro- (different states) and micro- (different cities) geographical levels. Genetic polymorphism was high (H-S = 0.274), and high levels of genetic differentiation existed both between different states (G(ST) = 0.317) and between cities or neighborhoods in each state (G(ST) = 0.085- 0.265). These values are higher than those described for any other populations of A.aegypti.
机译:2000年,巴西报告了180,137例登革热病例,约占美洲总数的80%。但是,对于巴西的媒介种群之间的基因流动了解甚少。随机扩增多态性DNA(RAPD)用于研究埃及伊蚊在五个州的15个种群中的遗传结构,其分布范围为2,800 km。对47个多态RAPD基因座的分析估计了宏观(不同州)和微观(不同城市)地理级别的基因流。遗传多态性很高(H-S = 0.274),并且不同州之间(G(ST)= 0.317)以及每个州的城市或邻里之间(G(ST)= 0.085-0.265)都存在高水平的遗传分化。这些值高于对埃及其他任何种群的描述值。

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