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June 20, 2026Frontiers in MicrobiologyOpen Access

Phylogenomic and comparative genomic analyses of Aeromonas spp. from South American aquatic systems reveal extensive genomic diversity, antimicrobial resistance, and predicted human pathogenicity

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Authors

EGEnrique García-CandelaAMAarón Mondragón-MartínezGMGerald Moreno-Morales

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Overview

Randomized trial reveals extensive genomic diversity and antimicrobial resistance in Aeromonas spp., indicating potential human health risks.

Key Points

  • This research investigates the genomic diversity and antimicrobial resistance of Aeromonas spp. from South American aquaculture systems.
  • Nine Aeromonas isolates from Amazonian aquaculture facilities in Peru were sequenced for whole-genome analysis.
  • Phylogenomic reconstruction and comparative gene content analysis were performed using 112 genomes to assess genetic diversity.
  • Antimicrobial susceptibility testing was conducted against five antibiotics, and virulence and resistome profiling were carried out.
  • Phylogenomic analysis showed significant genetic diversity among isolates, including Aeromonas hydrophila, Aeromonas caviae, and Aeromonas veronii.
  • 19,486 gene clusters were identified, with a subset shared across genomes, highlighting extensive diversity in Aeromonas spp.
  • All isolates predicted to have high probabilities of human pathogenicity (0.93-0.96), and resistance genes for multiple antibiotic classes were found.

Cite This Study

García-Candela et al. (2026) studied this question.

synapsesocial.com/papers/6a362d32db0793dc1a5359b0https://doi.org/10.3389/fmicb.2026.1823138
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