Phylogeography of Aedes (Stegomyia) aegypti (L.) and Aedes (Stegomyia) albopictus (Skuse) (Diptera: Culicidae) based on mitochondrial DNA variations.

Genetical research Pub Date : 2005-08-01 DOI:10.1017/S0016672305007627

Laurence Mousson, Catherine Dauga, Thomas Garrigues, Francis Schaffner, Marie Vazeille, Anna-Bella Failloux

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引用次数: 221

Abstract

Aedes (Stegomyia) aegypti (l.) and Aedes (Stegomyia) albopictus (Skuse) are the most important vectors of the dengue and yellow-fever viruses. Both took advantage of trade developments to spread throughout the tropics from their native area: A. aegypti originated from Africa and a. albopictus from South-East Asia. We investigated the relationships between A. aegypti and A. albopictus mosquitoes based on three mitochondrial-DNA genes (cytochrome b, cytochrome oxidase I and NADH dehydrogenase subunit 5). Little genetic variation was observed for a. albopictus, probably owing to the recent spreading of the species via human activities. For A. aegypti, most populations from South America were found to be genetically similar to populations from South-East Asia (Thailand and Vietnam), except for one sample from Boa Vista (northern Amazonia), which was more closely related to samples from Africa (Guinea and Ivory Coast). This suggests that African populations of A. aegypti introduced during the slave trade have persisted in Boa Vista, resisting eradication campaigns.

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基于线粒体DNA变异的埃及伊蚊和白纹伊蚊系统地理学研究(双翅目:库蚊科)。

埃及伊蚊和白纹伊蚊是登革热病毒和黄热病病毒最重要的媒介。这两种蚊子都利用了贸易发展的优势，从它们的原生地区传播到整个热带地区:埃及伊蚊源自非洲，白纹伊蚊源自东南亚。基于3个线粒体dna基因(细胞色素b、细胞色素氧化酶I和NADH脱氢酶亚基5)，研究了埃及伊蚊和白纹伊蚊之间的关系。白纹伊蚊的遗传变异很小，这可能是由于该物种最近通过人类活动传播所致。对于埃及伊蚊，发现来自南美洲的大多数种群与来自东南亚(泰国和越南)的种群在遗传上相似，但来自博阿维斯塔(亚马逊北部)的一个样本与来自非洲(几内亚和科特迪瓦)的样本更接近。这表明在奴隶贸易期间引入的非洲埃及伊蚊种群在博阿维斯塔持续存在，抵抗消灭运动。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Genetical research

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