Wolbachia Infections in World Populations of Bean Beetles (Coleoptera: Chrysomelidae: Bruchinae) Infesting Cultivated and Wild Legumes
Wolbachia Infections in World Populations of Bean Beetles (Coleoptera: Chrysomelidae: Bruchinae) Infesting Cultivated and Wild Legumes
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DOI：
10.2108/zsj.28.501
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发表时间：
2011-07-01
影响因子：
0.9
通讯作者：
Fukatsu, Takema
中科院分区：
文献类型：
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作者：
Kondo, Natsuko I.;Tuda, Midori;Fukatsu, Takema
沃尔巴克氏菌内共生菌广泛存在于昆虫和其他节肢动物中，常常导致寄主的细胞质不亲和性和其他生殖表型。最近，沃尔巴克氏菌介导的害虫控制和管理的可能性被提出，布氏豆亚科的菜豆甲虫在世界范围内被认为是采收和储藏豆类的严重害虫。在这里，我们调查了世界上7个属，20个种，87个种群的豆甲沃尔巴克氏菌感染情况。在被检测的20种物种中，有4种被检测到沃尔巴克氏菌感染，它们是：苦参、银纹夜蛾、美洲斑潜蝇和中华白纹伊蚊。在苦参中，感染频率较低，但在其他物种中的感染频率较高。除先前研究中描述的中华绒毛虫外，华支睾吸虫还感染了两个不同的沃尔巴克氏菌株。这些来自菜豆甲虫的沃尔巴克氏菌株在系统发育上彼此亲缘关系不密切。在中华绒毛虫的世界种群中，一些台湾种群在一种野生豆科植物上表现出一种特殊的沃尔巴克氏菌感染模式，这表明这些种群可能包含一个不同的寄主种族或一个隐蔽的物种。
Wolbachia endosymbionts are widespread among insects and other arthropods, often causing cytoplasmic incompatibility and other reproductive phenotypes in their hosts. Recently, possibilities of Wolbachia-mediated pest control and management have been proposed, and the bean beetles of the subfamily Bruchinae are known as serious pests of harvested and stored beans worldwide. Here we investigated Wolbachia infections in bean beetles from the world, representing seven genera, 20 species and 87 populations. Of 20 species examined, Wolbachia infections were detected in four species, Megabruchidius sophorae, Callosobruchus analis, C. latealbus and C. chinensis. Infection frequencies were partial in M. sophorae but perfect in the other species. In addition to C. chinensis described in the previous studies, C. latealbus was infected with two distinct Wolbachia strains. These Wolbachia strains from the bean beetles were phylogenetically not closely related to each other. Among world populations of C. chinensis, some Taiwanese populations on a wild leguminous plant, Rhynchosia minima, exhibited a peculiar Wolbachia infection pattern, suggesting the possibility that these populations comprise a distinct host race or a cryptic species.