ArticleMicrobiome2023
Population mixing mediates the intestinal flora composition and facilitates invasiveness in a globally invasive fruit fly.
Article in Microbiome, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 14 citations in OpenAlex.
- Excess Sucrose in the Larval Diet Alters Gut Microbiota and Reduces Body Size and Longevity of Bactrocera dorsalis (Hendel).Neotropical entomology · 2026Article
- Review
- The role of foliar endophytes in modulating southern corn rust severity: implications for biocontrol strategies.Frontiers in plant science · 2025Article
- Longitudinal dynamics of intestinal bacteria in the life cycle and their effects on growth and development of potato tuber moth.Frontiers in microbiology · 2025Article
- Intestinal commensal bacteria promote Bactrocera dorsalis larval development through the vitamin B6 synthesis pathway.Microbiome · 2024Article
- Gut microbiota facilitate adaptation of invasive moths to new host plants.The ISME journal · 2024Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundChanges in population heterozygosity and genetic diversity play important roles in mediating life history traits of organisms; these changes often lead to phenotypic evolution in offspring, which become superior to their parents. In the present study, we examined phenotypic differentiation, the intestinal microbiome composition, and metabolism shift in the oriental fruit fly (Bactrocera dorsalis) by comparing an inbred (monophyletic) original population and an outbred (mixed) invasive population.
resultsThe results showed that the outbred population of B. dorsalis had significantly higher biomass, adult longevity, and fecundity than the inbred population. Additionally, intestinal microflora analysis revealed that both Diutina rugosa and Komagataeibacter saccharivorans were significantly enriched in the outbred population with higher genetic heterozygosity. D. rugosa enrichment altered amino acid metabolism in the intestinal tract, and supplementing essential amino acids (e.g. histidine and glutamine) in the diet led to an increase in pupal weight of the outbred population. Additionally, transcriptome analysis revealed that the HSPA1S gene was significantly downregulated in the outbred population. HSPA1S was involved in activation of the JNK-MAPK pathway through negative regulation, caused the upregulation of juvenile hormone (JH), and led to an increase in biomass in the outbred flies.
conclusionIn conclusion, the outbred population had an altered intestinal microbe composition, mediating metabolism and transcriptional regulation, leading to phenotypic differentiation; this may be a potential mechanism driving the global invasion of B. dorsalis. Thus, multiple introductions could lead to invasiveness enhancement in B. dorsalis through population mixing, providing preliminary evidence that changes in the intestinal microbiome can promote biological invasion. Video Abstract.
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