Impact of intraspecific variation in insect microbiomes on host phenotype and evolution

The ISME Journal, Journal Year: 2023, Volume and Issue: 17(11), P. 1798 - 1807

Published: Sept. 2, 2023

Abstract Microbes can be an important source of phenotypic plasticity in insects. Insect physiology, behaviour, and ecology are influenced by individual variation the microbial communities held within insect gut, reproductive organs, bacteriome, other tissues. It is becoming increasingly clear how microbiome for fitness, expansion into novel ecological niches, environments. These investigations have garnered heightened interest recently, yet a comprehensive understanding intraspecific assembly function these insect-associated shape insects still lacking. Most research focuses on core associated with species ignores variation. We argue that among driver evolution, we provide examples showing such influence fitness health insects, invasions, their persistence new environments, responses to global environmental changes.

Language: Английский

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The plant-sucking insect selects assembly of the gut microbiota from environment to enhance host reproduction

npj Biofilms and Microbiomes, Journal Year: 2024, Volume and Issue: 10(1)

Published: July 30, 2024

Abstract Plant-sucking insects have intricate associations with a diverse array of microorganisms to facilitate their adaptation specific ecological niches. The midgut phytophagous true bugs is generally structured into four distinct compartments accommodate microbiota. Nevertheless, there limited understanding regarding the origins these gut microbiomes, mechanisms behind microbial community assembly, and interactions between microbiomes insect hosts. In this study, we conducted comprehensive survey communities within bean bug Riptortus pedestris , soybean plant, bulk soil across 12 geographical fields in China, utilizing high-throughput sequencing 16 S rRNA gene. Our findings illuminated that microbiota plant-sucking predominantly originated from surrounding environment, plants also play subordinate role mediating acquisition for insects. Furthermore, our investigation suggested composition microbiome was probably shaped by host selection and/or microbe-microbe at compartment level, marginal influence factors. Additionally, had unveiled noteworthy dynamic core bacterial taxa, particularly Burkholderia which were initially sourced environment subsequently enriched compartments. This enrichment played significant enhancing reproduction. These contribute evolving insect-plant-soil ecosystem, shedding additional light on underpin significance partnerships adaptation.

Language: Английский

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With or without you: gut microbiota does not predict aggregation behavior in European earwig females

Behavioral Ecology, Journal Year: 2024, Volume and Issue: 35(3)

Published: March 28, 2024

Abstract The reasons why some individuals are solitary, and others gregarious the subject of ongoing debate as we seek to understand emergence sociality. Recent studies suggest that expression aggregation behaviors may be linked gut microbiota host. Here, tested this hypothesis in females European earwig. This insect is ideal for addressing question, adults both naturally vary degree which they live groups show interindividual variation their microbial communities. We video-tracked 320 field-sampled quantify natural then whether most least had different microbiota. also compared general activity, boldness, body size, condition these examined association between each traits Contrary our predictions, found no difference females. There was two types Independent aggregation, overall associated with female condition, but not any other measurements. Overall, results demonstrate a host’s necessarily major driver or consequence behavior species inter-individual group living call future investigate determinants role earwigs.

Language: Английский

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Relationship Between the Host Plant Range of Insects and Symbiont Bacteria

Microorganisms, Journal Year: 2025, Volume and Issue: 13(1), P. 189 - 189

Published: Jan. 17, 2025

The evolution of phytophagous insects has resulted in the development feeding specializations that are unique to this group. majority current research on insect palatability concentrated aspects ecology and biology, with relatively little attention paid role gut symbiotic bacteria. Symbiont bacteria have a close relationship their hosts perform range functions. This aimed investigate between host plant A synthesis extant literature intestinal commensal monophagous, oligophagous, polyphagous tephritids revealed no evidence positive correlation diversity larval microbial species. symbionts same species were observed exhibit discrepancies different sources, which attributed variations multiple environmental factors. However, following beta analysis, monophagy demonstrated lowest level variation bacteria, while exhibited greatest community variation. In light these findings, study proposes hypothesis exclusive or closely related provide oligophagy stable core colony over long evolutionary periods. flora is associated adaptations monophagous oligophagous tephritids, including nutritional detoxification contrast polyphagy, whose dominant varies environments. Our requires further refinement data as number samples currently limited.

Language: Английский

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Positive Linkage in Bacterial Microbiota at the Plant‐Insect Interface Benefits an Invasive Bark Beetle

Plant Cell & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

ABSTRACT Symbiotic microbes facilitate rapid adaptation of invasive insects on novel plants via multifaceted function provisions, but little was known the importance cross linkages in symbiotic microbiota to insect invasiveness. Novel host pine Pinus tabuliformis is inherently unsuitable for red turpentine beetle (RTB) China; however, Novosphingobium and Erwinia / Serratia gallery (at interface between RTB larvae phloem) have been discovered help beetles biodegrading detrimental compounds naringenin pinitol, respectively. Here, we further revealed significant positive linkage two functions, with higher activity level conferring more growth benefit larvae. Abundance remarkably increased response while naringenin‐biodegrading unable utilize this main phloem carbohydrate directly. High‐activity bacterial produced nutritive metabolites (sucrose hexadecanoic acid) from pinitol consumption that facilitated both Functional proteins several taxa were enriched high‐activity appeared form a metabolic network collectively regulate nutrient production. Our results indicate interaction critical invasion success, Bacilli bacteria might restrict linkage, providing new insights into microbial interactions herbivores.

Language: Английский

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Origin and function of beneficial bacterial symbioses in insects

Nature Reviews Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Language: Английский

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Lactobacillus Firm-5-derived succinate prevents honeybees from having diabetes-like symptoms

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(36)

Published: Aug. 26, 2024

The gut microbiome plays an important role in honeybee hormonal regulation and growth, but the underlying mechanisms are poorly understood. Here, we showed that depletion of bacteria resulted reduced expression insulin-like peptide gene ( ilp ) head, accompanied by metabolic syndromes resembling those Type 1 diabetes humans: hyperglycemia, impaired lipid storage, decreased metabolism. These symptoms were alleviated bacterial inoculation. Gut metabolite profiling revealed succinate, produced Lactobacillus Firm-5, played deterministic roles activating regulating metabolism honeybees. Notably, demonstrated succinate modulates host through stimulating gluconeogenesis, a mechanism humans. This study presents evidence for modulating contributes to understanding interactions between bee hosts.

Language: Английский

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Microbiome turnover during offspring development varies with maternal care, but not moult, in a hemimetabolous insect

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: March 26, 2024

Abstract The ecological success of insects often depends on their association with beneficial microbes. However, insect development involves repeated moults, which can have dramatic effects microbial communities. Here, we investigated whether and how moulting affects the microbiome a hemimetabolous insect, maternal care modulate these effects. We reared European earwig juveniles or without mothers used 16S rRNA metabarcoding to analyse prokaryotic fraction core eggs, recently old moulted individuals at four developmental stages resulting adults. 218 samples obtained showed that diversity changed non-linearly during changes were associated bacterial biomarkers. Surprisingly, did not occur moulting, but rather between beginning end certain stages. also found access affected both adults, even when last contact was two months before adulthood. Overall, results provide new insights into our understanding (in)stability in its independence from moult. More generally, they question role acquisition through maintaining family life species where this behaviour is facultative.

Language: Английский

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Variation in diet concentration and bacterial inoculum size in larval habitat shapes the performance of the Asian tiger mosquito, Aedes albopictus

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: June 17, 2024

Background Ecological niches present unique environmental and biological trademarks such as abiotic conditions, nutrient availability trophic interactions that may impact ecology of living organisms. Female mosquitoes deposit their eggs in aquatic with fluctuating diet sources microbial communities. However, how niche’s composition mosquitoperformance (i.e. traits maximizes the mosquito fitness) are not well understood. In this study, we focused on Asian tiger mosquito, Aedes albopictus, one most invasive species world a competent vector for human pathogens. To remove any external microbes, Ae. albopictus were surface sterilized then hatching larvae exposed to gradient bacterial inoculum (i.e. initial load) concentrations while performance during juvenile development was measured. Results Our results showed develop faster give larger adults when microbiota rearing water. performance, up adult stage, depends both size concentration habitat. Upon low size, survived better if is sufficient amount whereas higher associated an optimal survival only presence lower diet. Inoculum lesser extent concentration, shaped community structure larval water allowing identification taxa which abundance correlated niche parameters and/or traits. Conclusions work demonstrates possibly by shaping habitat, account large part juvenile’s microbiota. Host-microbe influence several life-history traits, our reveals could have numerous implications assembly host evolutionary trajectory. This underlies host-microbe-environment important yet overlooked factor adaptation its local environment, potential future control ecology.

Language: Английский

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Microbiome turnover during offspring development varies with maternal care, but not moult, in a hemimetabolous insect

Peer Community Journal, Journal Year: 2024, Volume and Issue: 4

Published: July 29, 2024

The ecological success of insects often depends on their association with beneficial microbes. However, insect development involves repeated moults, which can have dramatic effects microbial communities. Here, we investigated whether and how moulting affects the microbiome a hemimetabolous insect, maternal care modulate these effects. We reared European earwig juveniles or without mothers used 16S rRNA metabarcoding to analyse prokaryotic fraction core eggs, recently old moulted individuals at four developmental stages resulting adults. 218 samples obtained showed that diversity changed non-linearly during changes were associated bacterial biomarkers. Surprisingly, did not occur moulting, but rather between beginning end certain stages. also found access affected both adults, even when last contact was two months before adulthood. Overall, results provide new insights into our understanding (in)stability in its independence from moult. More generally, they question role acquisition through maintaining family life species where this behaviour is facultative.

Language: Английский

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