ArticleMicrobiologyOpen2026
Comparative Genomic Analysis of Multidrug-Resistant Escherichia coli Across Poultry-Human-Environmental Interfaces.
Article in MicrobiologyOpen, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Comparative Genomic Analysis of Multidrug-Resistant Escherichia coli Across Poultry-Human-Environmental Interfaces.MicrobiologyOpen · 2026Article
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Authors and funding
7 authors.
Funding
Abstract
The emergence of multidrug-resistant (MDR) Escherichia coli in poultry represents a critical One Health concern, particularly in developing countries. This study employed a comparative genomic approach to investigate the genomic characteristics, antimicrobial resistance (AMR) profiles, virulence determinants, of poultry-derived MDR E. coli isolates from Bangladesh. Whole-genome sequencing of three representative MDR isolates, identified with 83 globally diverse poultry, human, and environmental E. coli genomes. Pangenome analysis identified the characteristic open pangenome of E. coli, with core genes comprising only 4.6% of the combined dataset. Resistome analysis shown diverse AMR determinants, including blaCTX-M, blaTEM, sul, tet, and qnrS1, associated with antibiotic inactivation and efflux mechanisms. Virulence profiling revealed diverse genes involved in adhesion (fim, csg), iron acquisition (ent, fep, chu), motility, and secretion systems, with core virulence genes exhibiting > 90% sequence identity, whereas accessory virulence genes were more variable. Plasmid analysis demonstrated heterogeneous replicon types, predominantly IncF and Col plasmids, indicating their role in horizontal gene transfer. Jaccard similarity indices revealed moderate to high genetic overlap with global strains (~0.63 for virulence genes and ~0.55 for AMR profiles), suggesting shared evolutionary backgrounds. Phylogenomic and MLST identified all Bangladeshi isolates as ST457, clustering within a globally distributed clonal complex linked to ST10 and ST131 lineages. These findings suggest that the three Bangladeshi poultry-derived E. coli isolates are genetically related to globally circulating strains while harboring extensive resistance and virulence determinants, emphasizing poultry as an important reservoir of MDR pathogens and reinforcing the need for strengthened antimicrobial stewardship and genomic surveillance.
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