Cross-sectional survey reveals host-specific bacterial communities and phylosymbiosis in wild Pentatomomorpha bugs, indicating evolutionary and ecological shaping of insect microbiomes.
Key Points
To assess bacterial community composition, diversity, and evolutionary determinants across diverse wild Pentatomomorpha species.
Sampled natural populations of 17 Pentatomomorpha species spanning four families (Pentatomidae, Coreidae, Lygaeidae, Pyrrhocoridae) in France.
Profiled whole-bacterial communities using 16S rRNA gene sequencing, microbial association networks, and phylosymbiosis analyses.
Microbiota composition differed markedly among host families, with Pentatomidae dominated by Pantoea/Erwinia putative nutritional symbionts, whereas Pyrrhocoridae, Coreidae, and Lygaeidae harbored more diverse taxa including Sphingobium, Hungatella, and Gordonibacter.
Host taxonomy strongly drove community diversity with a significant phylosymbiosis signal, while Serratia was widely prevalent and inherited endosymbionts such as Wolbachia and Spiroplasma were rare.