A survey of bacterial communities reveals host-specific associations across multiple Pentatomomorpha species in France
Abstract
Host-associated microbial communities play a central role in insect ecology and evolution, yet comparative studies across diverse taxa remain limited for many taxa and regions. Here, we conducted a multi-species survey of whole-bacterial communities associated with 17 Pentatomomorpha (Hemiptera) species from four families (Pentatomidae, Coreidae, Lygaeidae, Pyrrhocoridae) collected from natural populations in France, using 16S rRNA gene sequencing. Microbiota composition differed markedly among host families: mostbacterial communites hosted by Pentatomoidae species were dominated by members of the Pantoea/Erwinia genera, consistent with their putative role as obligate nutritional symbionts. In contrast, Pyrrhocoridae, Coreidae, and Lygaeidae harbored more diverse bacterial communities, including Sphingobium, Hungatella, and Gordonibacter. Serratia was frequently detected and often highly prevalent across species and sites, suggesting it may be a widespread facultative symbiont in Pentatomomorpha in Western Europe. Host taxonomy was a major determinant of microbiota diversity and composition, with a significant signal of phylosymbiosis, indicating that evolutionary history shapes microbiome assembly, while ecological factors such as diet, physiology, and environmental exposure further influence community structure. Network analyses revealed interspecific differences in bacterial community organization, with several low-abundance taxa occupying central positions within microbial interaction networks. By contrast, transovarially inherited endosymbionts, such as Wolbachia and Spiroplasma, were rare accross sample species. This study establishes a baseline for Pentatomomorpha microbiota, highlights the joint influence of host evolution and ecology on microbial communities, and provides a foundation for microbiome-based approaches to sustainable pest management.
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BibTeX
@article{amoros2026survey,
title = {{A survey of bacterial communities reveals host-specific associations across multiple Pentatomomorpha species in France}},
author = {Julien Amoros and Marjorie Bruley and Olivier Duron},
journal = {Applied Entomology and Zoology},
year = {2026},
month = aug,
doi = {10.1007/s13355-026-00995-3},
url = {https://hal.science/hal-05763816v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - A survey of bacterial communities reveals host-specific associations across multiple Pentatomomorpha species in France
AU - Julien Amoros
AU - Marjorie Bruley
AU - Olivier Duron
PY - 2026
DA - 2026/08/31
JO - Applied Entomology and Zoology
DO - 10.1007/s13355-026-00995-3
UR - https://hal.science/hal-05763816v1
AB - Host-associated microbial communities play a central role in insect ecology and evolution, yet comparative studies across diverse taxa remain limited for many taxa and regions. Here, we conducted a multi-species survey of whole-bacterial communities associated with 17 Pentatomomorpha (Hemiptera) species from four families (Pentatomidae, Coreidae, Lygaeidae, Pyrrhocoridae) collected from natural populations in France, using 16S rRNA gene sequencing. Microbiota composition differed markedly among host families: mostbacterial communites hosted by Pentatomoidae species were dominated by members of the Pantoea/Erwinia genera, consistent with their putative role as obligate nutritional symbionts. In contrast, Pyrrhocoridae, Coreidae, and Lygaeidae harbored more diverse bacterial communities, including Sphingobium, Hungatella, and Gordonibacter. Serratia was frequently detected and often highly prevalent across species and sites, suggesting it may be a widespread facultative symbiont in Pentatomomorpha in Western Europe. Host taxonomy was a major determinant of microbiota diversity and composition, with a significant signal of phylosymbiosis, indicating that evolutionary history shapes microbiome assembly, while ecological factors such as diet, physiology, and environmental exposure further influence community structure. Network analyses revealed interspecific differences in bacterial community organization, with several low-abundance taxa occupying central positions within microbial interaction networks. By contrast, transovarially inherited endosymbionts, such as Wolbachia and Spiroplasma, were rare accross sample species. This study establishes a baseline for Pentatomomorpha microbiota, highlights the joint influence of host evolution and ecology on microbial communities, and provides a foundation for microbiome-based approaches to sustainable pest management.
SN - 0003-6862
SN - 1347-605X
ER -