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Chang X, Xue S, Li R, Zhang Y. Episyrphus balteatus symbiont variation across developmental stages, living states, two sexes, and potential horizontal transmission from prey or environment. Front Microbiol 2024; 14:1308393. [PMID: 38249471 PMCID: PMC10797133 DOI: 10.3389/fmicb.2023.1308393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 12/08/2023] [Indexed: 01/23/2024] Open
Abstract
Introduction Episyrphus balteatus is one representative Syrphidae insect which can provide extensive pollination and pest control services. To date, the symbiont composition and potential acquisition approaches in Syrphidae remain unclear. Methods Herein, we investigated microbiota dynamics across developmental stages, different living states, and two sexes in E. balteatus via full-length 16S rRNA genes sequencing, followed by an attempt to explore the possibility of symbiont transmission from prey Megoura crassicauda to the hoverfly. Results Overall, Proteobacteria and Firmicutes were the dominant bacteria phyla with fluctuating relative abundances across the life stage. Cosenzaea myxofaciens is dominant in adulthood, while Enterococcus silesiacus and Morganella morganii dominate in larvae and pupae of E. balteatus, respectively. Unexpectedly, Serratia symbiotica, one facultative endosymbiont commonly harbored in aphids, was one of the predominant bacteria in larvae of E. balteatus, just behind Enterococcus silesiacus. In addition, S. symbiotica was also surprisingly most dominated in M. crassicauda aphids (92.1% relative abundance), which are significantly higher than Buchnera aphidicola (4.7% relative abundance), the primary obligate symbiont of most aphid species. Approximately 25% mortality was observed among newly emerged adults, of which microbiota was also disordered, similar to normally dying individuals. Sexually biased symbionts and 41 bacteria species with pairwise co-occurrence in E. balteatus and 23 biomarker species for each group were identified eventually. Functional prediction showed symbionts of hoverflies and aphids, both mainly focusing on metabolic pathways. In brief, we comprehensively explored the microbiome in one Syrphidae hoverfly using E. balteatus reared indoors on M. morganii as the model, revealed its dominated symbiont species, identified sexually biased symbionts, and found an aphid facultative endosymbiont inhabited in the hoverfly. We also found that the dominated symbiotic bacteria in M. crassicauda are S. symbiotica other than Buchnera aphidicola. Discussion Taken together, this study provides new valuable resources about symbionts in hoverflies and prey aphids jointly, which will benefit further exploring the potential roles of microbiota in E. balteatus.
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Affiliation(s)
- Xiao Chang
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, China
- School of Biological and Food Engineering, Anyang Institute of Technology, Anyang, China
- Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Inte-grated Utilization, Anyang, Henan, China
- Taihang Mountain Forest Pests Observation and Research Station of Henan Province, Linzhou, China
| | - Shuang Xue
- School of Biological and Food Engineering, Anyang Institute of Technology, Anyang, China
- Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Inte-grated Utilization, Anyang, Henan, China
- Taihang Mountain Forest Pests Observation and Research Station of Henan Province, Linzhou, China
| | - Ruimin Li
- School of Biological and Food Engineering, Anyang Institute of Technology, Anyang, China
- Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Inte-grated Utilization, Anyang, Henan, China
- Taihang Mountain Forest Pests Observation and Research Station of Henan Province, Linzhou, China
| | - Yuanchen Zhang
- School of Biological and Food Engineering, Anyang Institute of Technology, Anyang, China
- Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Inte-grated Utilization, Anyang, Henan, China
- Taihang Mountain Forest Pests Observation and Research Station of Henan Province, Linzhou, China
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Ün Ç, Schultner E, Manzano-Marín A, Flórez LV, Seifert B, Heinze J, Oettler J. Cytoplasmic incompatibility between Old and New World populations of a tramp ant. Evolution 2021; 75:1775-1791. [PMID: 34047357 DOI: 10.1111/evo.14261] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 04/14/2021] [Accepted: 04/16/2021] [Indexed: 12/21/2022]
Abstract
Reproductive manipulation by endosymbiotic Wolbachia can cause unequal inheritance, allowing the manipulator to spread and potentially impacting evolutionary dynamics in infected hosts. Tramp and invasive species are excellent models to study the dynamics of host-Wolbachia associations because introduced populations often diverge in their microbiomes after colonizing new habitats, resulting in infection polymorphisms between native and introduced populations. Ants are the most abundant group of insects on earth, and numerous ant species are classified as highly invasive. However, little is known about the role of Wolbachia in these ecologically dominant insects. Here, we provide the first description of reproductive manipulation by Wolbachia in an ant. We show that Old and New World populations of the cosmotropic tramp ant Cardiocondyla obscurior harbor distinct Wolbachia strains, and that only the Old World strain manipulates host reproduction by causing cytoplasmic incompatibility (CI) in hybrid crosses. By uncovering a symbiont-induced mechanism of reproductive isolation in a social insect, our study provides a novel perspective on the biology of tramp ants and introduces a new system for studying the evolutionary consequences of CI.
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Affiliation(s)
- Çiğdem Ün
- Zoology/Evolutionary Biology, University of Regensburg, Regensburg, 93053, Germany
| | - Eva Schultner
- Zoology/Evolutionary Biology, University of Regensburg, Regensburg, 93053, Germany
| | - Alejandro Manzano-Marín
- Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, 1090, Austria
| | - Laura V Flórez
- Institute of Organismic and Molecular Evolution, Evolutionary Ecology Department, Johannes Gutenberg University Mainz, Mainz, 55128, Germany
| | - Bernhard Seifert
- Senckenberg Museum of Natural History Görlitz, Görlitz, 02826, Germany
| | - Jürgen Heinze
- Zoology/Evolutionary Biology, University of Regensburg, Regensburg, 93053, Germany
| | - Jan Oettler
- Zoology/Evolutionary Biology, University of Regensburg, Regensburg, 93053, Germany
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Hellemans S, Kaczmarek N, Marynowska M, Calusinska M, Roisin Y, Fournier D. Bacteriome-associated Wolbachia of the parthenogenetic termite Cavitermes tuberosus. FEMS Microbiol Ecol 2019; 95:5247714. [PMID: 30551145 DOI: 10.1093/femsec/fiy235] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 12/13/2018] [Indexed: 11/13/2022] Open
Abstract
Wolbachia has deeply shaped the ecology and evolution of many arthropods, and interactions between the two partners are a continuum ranging from parasitism to mutualism. Non-dispersing queens of the termite Cavitermes tuberosus are parthenogenetically produced through gamete duplication, a mode of ploidy restoration generally induced by Wolbachia. These queens display a bacteriome-like structure in the anterior part of the mesenteron. Our study explores the possibility of a nutritional mutualistic, rather than a parasitic, association between Wolbachia and C. tuberosus. We found a unique strain (wCtub), nested in the supergroup F, in 28 nests collected in French Guiana, the island of Trinidad and the state of Paraíba, Brazil (over 3500 km). wCtub infects individuals regardless of caste, sex or reproductive (sexual versus parthenogenetic) origin. qPCR assays reveal that Wolbachia densities are higher in the bacteriome-like structure and in the surrounding gut compared to other somatic tissues. High-throughput 16S rRNA gene amplicon sequencing reveals that Wolbachia represents over 97% of bacterial reads present in the bacteriome structure. BLAST analyses of 16S rRNA, bioA (a gene of the biosynthetic pathway of B vitamins) and five multilocus sequence typing genes indicated that wCtub shares 99% identity with wCle, an obligate nutritional mutualist of the bedbug Cimex lectularius.
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Affiliation(s)
- Simon Hellemans
- Evolutionary Biology & Ecology, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/12, B-1050 Brussels, Belgium
| | - Nicolas Kaczmarek
- Evolutionary Biology & Ecology, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/12, B-1050 Brussels, Belgium
| | - Martyna Marynowska
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology, L-4422 Belvaux, Luxembourg
| | - Magdalena Calusinska
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology, L-4422 Belvaux, Luxembourg
| | - Yves Roisin
- Evolutionary Biology & Ecology, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/12, B-1050 Brussels, Belgium
| | - Denis Fournier
- Evolutionary Biology & Ecology, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/12, B-1050 Brussels, Belgium
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