Global Honey Bee Viral Landscape Altered by a Parasitic Mite
Global Honey Bee Viral Landscape Altered by a Parasitic Mite
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DOI：
10.1126/science.1220941
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发表时间：
2012-06-08
期刊：
影响因子：
56.9
通讯作者：
Schroeder, Declan C.
中科院分区：
文献类型：
--
作者：
Martin, Stephen J.;Highfield, Andrea C.;Schroeder, Declan C.
新出现的疾病是对蜜蜂最大的威胁之一。不幸的是，一种新出现的疾病将在何时何地出现几乎是不可能预测的。寄生瓦螨进入夏威夷蜜蜂种群的到来使我们能够调查蜜蜂病毒的流行率，负载和菌株多样性的变化。螨增加了一个单一的病毒物种，变形翼病毒（DWV）的流行，从类似的10%到100%的蜜蜂种群，这是伴随着病毒滴度增加了百万倍，DWV的多样性大幅减少，导致一个单一的DWV株占主导地位。因此，瓦螨属的全球传播选择了已经出现的DWV变体，使其成为地球上分布最广泛和传染性最强的昆虫病毒之一。
Emerging diseases are among the greatest threats to honey bees. Unfortunately, where and when an emerging disease will appear are almost impossible to predict. The arrival of the parasitic Varroa mite into the Hawaiian honey bee population allowed us to investigate changes in the prevalence, load, and strain diversity of honey bee viruses. The mite increased the prevalence of a single viral species, deformed wing virus (DWV), from similar to 10 to 100% within honey bee populations, which was accompanied by a millionfold increase in viral titer and a massive reduction in DWV diversity, leading to the predominance of a single DWV strain. Therefore, the global spread of Varroa has selected DWV variants that have emerged to allow it to become one of the most widely distributed and contagious insect viruses on the planet.