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Awad M, Ben Gharsa H, ElKraly OA, Leclerque A, Elnagdy SM. COI Haplotyping and Comparative Microbiomics of the Peach Fruit Fly, an Emerging Pest of Egyptian Olive Orchards. BIOLOGY 2022; 12:biology12010027. [PMID: 36671720 PMCID: PMC9855353 DOI: 10.3390/biology12010027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/12/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022]
Abstract
The peach fruit fly, Bactrocera zonata (Tephritidae), is economically relevant as a highly polyphagous pest infesting over 50 host plants including commercial fruit and horticultural crops. As an invasive species, B. zonata was firmly established in Egypt and holds potential to spread further across the Mediterranean basin. The present study demonstrated that the peach fruit fly was found multiplying in olive orchards at two distant locations in Egypt. This is the first report of B. zonata developing in olives. COI barcoding has revealed evidence for high diversity across these peach fruit fly populations. These data are consistent with multiple rather than a single event leading to both peach fruit fly invasion to Egypt and its adaptation to olive. Comparative microbiomics data for B. zonata developing on different host plants were indicative for microbiome dynamics being involved in the adaptation to olive as a new niche with a potential adaptive role for Erwinia or Providencia bacteria. The possibility of symbiont transfer from the olive fruit fly to the peach fruit fly is discussed. Potentially host switch relevant bacterial symbionts might be preferred targets of symbiosis disruption strategies for integrated pest management or biological control of B. zonata.
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Affiliation(s)
- Mona Awad
- Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
- Correspondence: (M.A.); (A.L.); or (S.M.E.)
| | - Haifa Ben Gharsa
- Department of Biology, Technische Universität Darmstadt, 64287 Darmstadt, Germany
| | - Omnia Abdullah ElKraly
- Bioinsecticides Production Unit, Plant Protection Research Institute, Agriculture Research Center, Ministry of Agriculture, Giza 13611, Egypt
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Andreas Leclerque
- Department of Biology, Technische Universität Darmstadt, 64287 Darmstadt, Germany
- Correspondence: (M.A.); (A.L.); or (S.M.E.)
| | - Sherif M. Elnagdy
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza 12613, Egypt
- Correspondence: (M.A.); (A.L.); or (S.M.E.)
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Bel Mokhtar N, Catalá-Oltra M, Stathopoulou P, Asimakis E, Remmal I, Remmas N, Maurady A, Britel MR, García de Oteyza J, Tsiamis G, Dembilio Ó. Dynamics of the Gut Bacteriome During a Laboratory Adaptation Process of the Mediterranean Fruit Fly, Ceratitis capitata. Front Microbiol 2022; 13:919760. [PMID: 35847076 PMCID: PMC9283074 DOI: 10.3389/fmicb.2022.919760] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
Laboratory adaptation process used in sterile insect technique (SIT) programs can exert a significant impact on the insect-gut microbiome relationship, which may negatively impact the quality and performance of the fly. In the present study, changes in the gut microbiota that occur through laboratory adaptation of two Ceratitis capitata populations were investigated: Vienna 8 genetic sexing strain (GSS), a long-established control line, and a wild population recently introduced to laboratory conditions. The bacterial profiles were studied for both strains using amplicon sequencing of the 16S rRNA V3-V4 hypervariable region in larvae and in the gastrointestinal tract of teneral (1 day) and adults (5 and 15 days) reared under laboratory conditions for 14 generations (F0-F13). Findings demonstrated the development of distinct bacterial communities across the generations with differences in the bacterial composition, suggesting a strong impact of laboratory adaptation on the fly bacteriome. Moreover, different bacterial profiles were observed between wild and Vienna 8 FD-GSS displaying different patterns between the developmental stages. Proteobacteria, mainly members of the Enterobacteriaceae family, represented the major component of the bacterial community followed by Firmicutes (mainly in Vienna 8 FD-GSS adults) and Chlamydiae. The distribution of these communities is dynamic across the generations and seems to be strain- and age-specific. In the Vienna 8 FD-GSS population, Providencia exhibited high relative abundance in the first three generations and decreased significantly later, while Klebsiella was relatively stable. In the wild population, Klebsiella was dominant across most of the generations, indicating that the wild population was more resistant to artificial rearing conditions compared with the Vienna 8 FD-GSS colony. Analysis of the core bacteriome revealed the presence of nine shared taxa between most of the examined medfly samples including Klebsiella, Providencia, Pantoea, and Pseudomonas. In addition, the operational taxonomic unit co-occurrence and mutual exclusion networks of the wild population indicated that most of the interactions were classified as co-presence, while in the Vienna 8 FD-GSS population, the number of mutual exclusions and co-presence interactions was equally distributed. Obtained results provided a thorough study of the dynamics of gut-associated bacteria during the laboratory adaptation of different Ceratitis capitata populations, serving as guidance for the design of colonization protocols, improving the effectiveness of artificial rearing and the SIT application.
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Affiliation(s)
- Naima Bel Mokhtar
- Laboratory of Systems Microbiology and Applied Genomics, Department of Environmental Engineering, University of Patras, Agrinio, Greece
- Laboratory of Innovative Technology, National School of Applied Sciences of Tangier, Abdelmalek Essâadi University, Tétouan, Morocco
| | - Marta Catalá-Oltra
- Empresa de Transformación Agraria S.A., S.M.E., M.P. (TRAGSA), Paterna, Spain
| | - Panagiota Stathopoulou
- Laboratory of Systems Microbiology and Applied Genomics, Department of Environmental Engineering, University of Patras, Agrinio, Greece
| | - Elias Asimakis
- Laboratory of Systems Microbiology and Applied Genomics, Department of Environmental Engineering, University of Patras, Agrinio, Greece
| | - Imane Remmal
- Laboratory of Innovative Technology, National School of Applied Sciences of Tangier, Abdelmalek Essâadi University, Tétouan, Morocco
| | - Nikolaos Remmas
- Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Xanthi, Greece
| | - Amal Maurady
- Laboratory of Innovative Technology, National School of Applied Sciences of Tangier, Abdelmalek Essâadi University, Tétouan, Morocco
- Faculty of Sciences and Technology of Tangier, Abdelmalek Essâadi University, Tétouan, Morocco
| | - Mohammed Reda Britel
- Laboratory of Innovative Technology, National School of Applied Sciences of Tangier, Abdelmalek Essâadi University, Tétouan, Morocco
| | | | - George Tsiamis
- Laboratory of Systems Microbiology and Applied Genomics, Department of Environmental Engineering, University of Patras, Agrinio, Greece
| | - Óscar Dembilio
- Empresa de Transformación Agraria S.A., S.M.E., M.P. (TRAGSA), Paterna, Spain
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Campos C, Gomes L, Rei FT, Nobre T. Olive Fruit Fly Symbiont Population: Impact of Metamorphosis. Front Microbiol 2022; 13:868458. [PMID: 35509306 PMCID: PMC9058165 DOI: 10.3389/fmicb.2022.868458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/21/2022] [Indexed: 11/14/2022] Open
Abstract
The current symbiotic view of the organisms also calls for new approaches in the way we perceive and manage our pest species. The olive fruit fly, the most important olive tree pest, is dependent on an obligate bacterial symbiont to its larvae development in the immature fruit. This symbiont, Candidatus (Ca.) Erwinia dacicola, is prevalent throughout the host life stages, and we have shown significant changes in its numbers due to olive fruit fly metamorphosis. The olive fruit fly microbiota was analyzed through 16S metabarcoding, at three development stages: last instar larvae, pupae, and adult. Besides Ca. E. dacicola, the olive fruit flies harbor a diverse bacterial flora of which 13 operational taxonomic units (grouped in 9 genera/species) were now determined to persist excluding at metamorphosis (Corynebacterium sp., Delftia sp., Enhydrobacter sp., Kocuria sp., Micrococcus sp., Propionibacterium sp., Pseudomonas sp., Raoultella sp., and Staphylococcus sp.). These findings open a new window of opportunities in symbiosis-based pest management.
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Affiliation(s)
- Catarina Campos
- Laboratory of Molecular Biology, MED – Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Luis Gomes
- MED – Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Fernando T. Rei
- Laboratory of Entomology, MED – Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Tania Nobre
- Laboratory of Entomology, MED – Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
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