Emerging vectors in the Culex pipiens complex
Emerging vectors in the Culex pipiens complex
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DOI：
10.1126/science.1094247
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发表时间：
2004-03-05
期刊：
影响因子：
56.9
通讯作者：
Wilkerson, RC
中科院分区：
文献类型：
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作者：
Fonseca, DM;Keyghobadi, N;Wilkerson, RC
在东半球，淡色库蚊群中的一些蚊子是西尼罗河病毒极好的地方病媒，在鸟类中传播病毒，而另一些蚊子则主要叮咬人类和其他哺乳动物。在这里，我们表明，在北欧，这些在行为和生理上不同的形式有独特的微卫星指纹，没有证据表明它们之间有基因流动，这是对不同物种的期望。然而，在美国，这些形式之间的杂交是无处不在的。这种人类咬人动物和鸟类咬人动物之间的杂交物种可能是导致西尼罗河病毒在北美空前严重和广泛流行的桥梁媒介。
In the Old World, some mosquitoes in the Culex pipiens complex are excellent enzootic vectors of West Nile virus, circulating the virus among birds, whereas others bite mainly humans and other mammals. Here we show that, in northern Europe, such forms differing in behavior and physiology have unique microsatellite fingerprints with no evidence of gene flow between them, as would be expected from distinct species. In the United States, however, hybrids between these forms are ubiquitous. Such hybrids between human-biters and bird-biters may be the bridge vectors contributing to the unprecedented severity and range of the West Nile virus epidemic in North America.