Wolbachia infection frequencies in insects:: evidence of a global equilibrium?
Wolbachia infection frequencies in insects:: evidence of a global equilibrium?
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DOI：
10.1098/rspb.2000.1139
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发表时间：
2000-07-07
影响因子：
4.7
通讯作者：
Windsor, DM
中科院分区：
文献类型：
--
作者：
Werren, JH;Windsor, DM
沃尔巴克氏体是一组细胞质遗传细菌，可引起节肢动物的生殖改变，包括孤雌生殖、生殖不相容、遗传雄性雌性化和雄性杀戮。之前在巴拿马和英国对昆虫的总体调查发现沃尔巴克氏体很常见，出现在16-22%的物种中。在这里，使用类似的聚合酶链反应方法，我们报告了19.3%的温带北美昆虫样本感染了沃尔巴克氏体，我们的频率与另外两项在广泛分离的地区发现的频率惊人地相似。结果可能表明沃尔巴克氏体感染频率在昆虫中的广泛平衡，其维持仍有待解释。另外，沃尔巴克氏体在全球昆虫群落中可能正在增加。在调查的三个地理区域中，膜翅目感染A群沃尔巴克氏体的频率更高，鳞翅目感染B群沃尔巴克氏体的频率更高。
Wolbachia are a group of cytoplasmically inherited bacteria that cause reproduction alterations in arthropods, including parthenogenesis, reproductive incompatibility, feminization of genetic males and male killing. Previous general surveys of insects in Panama and Britain found Wolbachia to be common, occurring in 16-22% of species. Here, using similar polymerase chain reaction methods, we report that 19.3% of a sample of temperate North American insects are infected with Wolbachia, we frequency strikingly similar to frequencies found in two other studies in widely separated locales. The results may indicate a widespread equilibrium of Wolbachia infection frequencies in insects whose maintenance remains to be explained. Alternatively, Wolbachia may be increasing in global insect communities. Within each of the three geographic regions surveyed, Hymenoptera are more frequently infected with A group Wolbachia and Lepidoptera more frequently infected with B group Wolbachia.