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<p><i>Drosophila</i> species serve as key models for microbiota research due to their relatively simple microbial communities. However, microbial diversity and dynamics in Neotropical Andean <i>Drosophila</i> remain underexplored. Here we applied shotgun metagenomics to characterize the microbiota of 24 Neotropical <i>Drosophila</i> species from Ecuador, reconstructing 64 high-quality bacterial genomes predominantly from Acetobacteraceae and Enterobacterales. Microbial communities were consistently dominated by yeasts, lactic acid bacteria, acetic acid bacteria, and <i>Wolbachia</i>. Comparative analyses revealed no strong correlation between host phylogeny and microbial community composition, suggesting environmental factors and microbial interactions shape these communities. Notably, shifts in relative abundances indicate dynamic ecological succession and metabolic cooperation among microbes. These findings expand genomic resources for <i>Drosophila</i>-associated bacteria and highlight the complex ecological processes influencing host–microbiota relationships in natural populations.</p>

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Bacterial genome reconstruction and community profiling in Neotropical Drosophila

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年1月29日

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  • Maria Alejandra Ulloa,
  • Angela Viviana Serrano,
  • Laura Carolina Camelo,
  • Romain Guyot,
  • Doris Vela,
  • Alejandro Reyes Muñoz

摘要

Drosophila species serve as key models for microbiota research due to their relatively simple microbial communities. However, microbial diversity and dynamics in Neotropical Andean Drosophila remain underexplored. Here we applied shotgun metagenomics to characterize the microbiota of 24 Neotropical Drosophila species from Ecuador, reconstructing 64 high-quality bacterial genomes predominantly from Acetobacteraceae and Enterobacterales. Microbial communities were consistently dominated by yeasts, lactic acid bacteria, acetic acid bacteria, and Wolbachia. Comparative analyses revealed no strong correlation between host phylogeny and microbial community composition, suggesting environmental factors and microbial interactions shape these communities. Notably, shifts in relative abundances indicate dynamic ecological succession and metabolic cooperation among microbes. These findings expand genomic resources for Drosophila-associated bacteria and highlight the complex ecological processes influencing host–microbiota relationships in natural populations.