A complex invasion story underlies the fast spread of the invasive box tree moth (Cydalima perspectalis) across Europe
A complex invasion story underlies the fast spread of the invasive box tree moth (Cydalima perspectalis) across Europe
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DOI：
10.1007/s10340-019-01111-x
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发表时间：
2019-06-01
影响因子：
4.8
通讯作者：
Auger-Rozenberg, Marie-Anne
中科院分区：
文献类型：
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作者：
Bras, Audrey;Avtzis, Dimitrios N.;Auger-Rozenberg, Marie-Anne
许多最近建立的非本地昆虫物种在欧洲的传播速度似乎比以前快得多。原产于亚洲的黄杨蛾（Cydalima perspectalis）就是这一趋势的例证。这种蛾于 2007 年在德国首次被记录，随后在不到 10 年的时间里在欧洲和小亚细亚的 30 多个国家定居，对野生和观赏黄杨树造成了严重损害。据推测，中国和欧洲之间的观赏黄杨树贸易是飞蛾传入的原因，而欧洲国家之间的植物贸易可能导致其迅速蔓延。为了阐明害虫入侵历史，我们使用线粒体细胞色素氧化酶 I 和 II 基因的 1495 bp 片段分析了其本地和入侵范围内种群的遗传多样性和结构。亚洲的蛾类遗传多样性与在被入侵的欧洲和小亚细亚观察到的遗传多样性相比表明，入侵种群可能起源于中国东部。此外，入侵范围内的高度遗传多样性与空间遗传结构相结合表明发生了一些可能直接来自中国的引入事件。此外，欧洲和小亚细亚的空间遗传结构也可能反映了由于欧洲国家之间的观赏植物贸易而在入侵范围内发生的二次入侵。
Many recently established non-native insect species appear to be spreading across Europe significantly faster than before. The box tree moth (Cydalima perspectalis), a native to Asia, is illustrative of this trend. First recorded in 2007 in Germany, the moth has then colonized in less than 10years more than 30 countries in Europe and Asia Minor, causing significant damage to wild and ornamental Buxus trees. It has been hypothesized that the trade of ornamental box trees between China and Europe was responsible for the moth introduction while plant trade among European countries may have caused its rapid spread. To clarify the pest invasion history, we analyzed the genetic diversity and structure of its populations in the native and invaded ranges, using a 1495-bp fragment of the mitochondrial cytochrome oxidase I and II genes. Moth genetic diversity in Asia compared to the one observed in the invaded Europe and Asia Minor suggested that the invasive populations probably originated from eastern China. Furthermore, the high genetic diversity coupled with the spatial genetic structure in the invaded range suggested the occurrence of several introduction events, probably directly from China. Moreover, the spatial genetic structure in Europe and Asia Minor may also reflect secondary invasions within invaded range because of ornamental plant trade among European countries.