Insects of the heteropteran superfamilies Coreoidea and Lygaeoidea are consistently associated with symbionts of a specific group of the genus Burkholderia, called the “stinkbug-associated beneficial and environmental (SBE)” group. The symbiosis is maintained by the environmental transmission of symbionts. We investigated European and Japanese populations of the dock bug Coreus marginatus (Coreoidea: Coreidae). High nymphal mortality in reared aposymbiotic insects suggested an obligate host-symbiont association in this species. Molecular phylogenetic analyses based on 16S rRNA gene sequences revealed that all 173 individuals investigated were colonized by Burkholderia, which were further assigned to different subgroups of the SBE in a region-dependent pattern.

中文翻译：

---

Burkholderia肠道共生体与欧洲和日本的 Dock Bug Coreus marginatus (Coreoidea: Coreidae) 种群相关

杂翅目超科 Coreoidea 和 Lygaeoidea 的昆虫始终与伯克霍尔德氏菌属的特定群体的共生体相关，称为“与臭虫相关的有益和环境 (SBE)”群体。共生是通过共生体的环境传播来维持的。我们调查了码头臭虫 Coreus marginatus (Coreoidea: Coreidae) 的欧洲和日本种群。饲养的非共生昆虫的若虫死亡率高表明该物种中存在专性的宿主-共生体关联。基于 16S rRNA 基因序列的分子系统发育分析显示，所有被调查的 173 个人都被伯克霍尔德菌定植，伯克霍尔德菌进一步以区域依赖性模式分配到 SBE 的不同亚群。