Comprehensive Analyses of a Large Human Gut Bacteroidales Culture Collection Reveal Species and Strain Level Diversity and Evolution
bioRxiv the preprint server for biology(2024)
摘要
Species of the Bacteroidales order are among the most abundant and stable bacterial members of the human gut microbiome, with diverse impacts on human health. We cultured and sequenced the genomes of 408 Bacteroidales isolates from healthy human donors representing nine genera and 35 species and performed comparative genomic, gene-specific, metabolomic, and horizontal gene transfer analyses. Families, genera, and species could be grouped based on many distinctive features. We also observed extensive DNA transfer between diverse families, allowing for shared traits and strain evolution. Inter- and intra-species diversity is also apparent in the metabolomic profiling studies. This highly characterized and diverse Bacteroidales culture collection with strain-resolved genomic and metabolomic analyses represents a valuable resource to facilitate informed selection of strains for microbiome reconstitution.
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关键词
microbiome,culture collection,biobank,bacterial isolates,Bacteroidales,metabolomics,MGE,T6SS
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