Institute of Systematics and Evolution of Animals Polish Academy of Sciences, Kraków, Poland.
Department of Natural Forests, Forest Research Institute, Białowieża, Poland.
Sci Rep. 2019 Jan 29;9(1):847. doi: 10.1038/s41598-018-38155-5.
Knowledge of Wolbachia prevalence with respect to its hosts is restricted mainly to taxonomic/phylogenetic context. In contrast, relations between infection and most host's ecological and biological traits are poorly understood. This study aimed to elaborate on relations between bacteria and its beetle hosts in taxonomic and the ecological contexts. In particular, the goal is to verify which ecological and biological traits of beetles could cause them to be prone to be infected. Verification of Wolbachia infection status across 297 beetle taxa showed that approximately 27% of taxa are infected by supergroups A and B. Only minor support for coevolution between bacteria and its beetle hosts was observed in some genera of beetles, but in general coevolution between beetles and Wolbachia was rejected. Some traits of beetles were found to be unrelated to Wolbachia prevalence (type of range and thermal preferences); some traits were related with ambiguous effects (habitats, distribution, mobility and body size); some were substantially related (reproduction mode and trophy). The aforementioned summary does not show obvious patterns of Wolbachia prevalence and diversity in relation to host taxonomy, biology, and ecology. As both Wolbachia and Coleoptera are diverse groups, this lack of clear patterns is probably a reflection of nature, which is characterised by highly diversified and probably unstable relations.
关于其宿主的沃尔巴克氏体的流行程度的知识主要局限于分类/系统发育背景。相比之下，感染与大多数宿主的生态和生物学特征之间的关系还知之甚少。本研究旨在从分类和生态角度详细阐述细菌与其甲虫宿主之间的关系。特别是，目的是验证哪些甲虫的生态和生物学特征可能导致它们容易受到感染。对 297 个甲虫类群的沃尔巴克氏体感染状况的验证表明，大约 27%的类群受到 A 和 B 超组的感染。仅在一些甲虫属中观察到细菌与其甲虫宿主之间存在轻微的协同进化，但总体而言，甲虫与沃尔巴克氏体之间的协同进化被否定了。发现一些甲虫的特征与沃尔巴克氏体的流行程度无关（范围类型和热偏好）；一些特征与模糊效应有关（栖息地、分布、流动性和体型）；一些特征则有密切的关系（繁殖方式和营养级）。上述总结没有显示出沃尔巴克氏体的流行程度和多样性与宿主分类、生物学和生态学之间的明显模式。由于沃尔巴克氏体和鞘翅目都是多样化的群体，这种缺乏明显模式可能反映了自然界的特点，即具有高度多样化和可能不稳定的关系。
