Development but not diet alters microbial communities in the Neotropical arboreal trap jaw ant Daceton armigerum: an exploratory study

Autor: Jérôme Orivel, Joshua C. Gibson, Christophe Duplais, Manuela de Oliveira Ramalho, Alain Dejean, Corrie S. Moreau, Andrew V. Suarez
Přispěvatelé: Cornell University, Department of Entomology, Ecologie des forêts de Guyane (UMR ECOFOG), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Université de Guyane (UG)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), University of Illinoiis at Urbana-Champaign, Department of Entomology, University of Illinois at Urbana-Champaign, Department of Evolution and Evolutionary Biology, Cornell University, Department of Ecology and Evolutionary Biology, ANR-11-INBS-0001,ANAEE-FR,ANAEE-Services(2011), ANR-10-LABX-0025,CEBA,CEnter of the study of Biodiversity in Amazonia(2010)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Scientific Reports
Scientific Reports, Nature Publishing Group, 2020, 10 (1), ⟨10.1038/s41598-020-64393-7⟩
Scientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
ISSN: 2045-2322
Popis: International audience; To better understand the evolutionary significance of symbiotic interactions in nature, microbiome studies can help to identify the ecological factors that may shape host-associated microbial communities. In this study we explored both 16S and 18S rRNA microbial communities of D. armigerum from both wild caught individuals collected in the Amazon and individuals kept in the laboratory and fed on controlled diets. We also investigated the role of colony, sample type, development and caste on structuring microbial communities. Our bacterial results (16S rRNA) reveal that (1) there are colony level differences between bacterial communities; (2) castes do not structure communities; (3) immature stages (brood) have different bacterial communities than adults; and 4) individuals kept in the laboratory with a restricted diet showed no differences in their bacterial communities from their wild caught nest mates, which could indicate the presence of a stable and persistent resident bacterial community in this host species. The same categories were also tested for microbial eukaryote communities (18S rRNA), and (5) developmental stage has an influence on the diversity recovered; (6) the diversity of taxa recovered has shown this can be an important tool to understand additional aspects of host biology and species interactions. A prevailing question in studies of host-symbiont interactions is what are the host factors that affect their prokar-yotic and eukaryotic microbial communities. Microbial communities are influenced by features including geography, host phylogeny, diet and stages of development 1-7. However, no single factor consistently structures host-associated microbial communities across the tree of life. For example, in some ants diet explains substantial variation in gut microbial diversity 8-13. In contrast, for Pseudomyrmex ants a specialized plant-based diet was not as important as their relative trophic position for explaining microbial abundance and diversity 14. Understanding the patterns and exceptions affecting host-associated microbial diversity are critical to advancing our knowledge of these intimate relationships. One of the most common benefits provided by symbiosis is nutrition 15. Part of the evolutionary success of ants is attributed to food flexibility, which in some cases is directly linked to microbial symbionts 12,16,17. Several ant species have well-established bacterial communities and some provide essential nutrients to the ants. For example, members of the Camponotini tribe (Camponotus, Colobopsis and Polyrhachis) rely on endosymbiotic Blochmannia to obtain nitrogen 3,4,18-20 , and species in the genus Cephalotes rely on intestinal symbionts to recycle nitrogen for the host 10,12,21. However, the majority of ant taxa have not had their microbial communities studied, especially for eukaryotic microbes. In addition, understanding the factors that influence and modify the diversity of these associated microbes is important to understand their impact on the host.
Databáze: OpenAIRE
Externí odkaz: