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Genome Sequence of OXA-726-Encoding Aeromonas dhakensis Igbk (Sequence Type 1171) from an Edible Snail Traded in

Arthur C Okafor1, Frank C Ogbo2, Adriana Cabal Rosel1

  • 1Institute of Medical Microbiology and Hygiene, Austrian Agency for Health and Food Safety, Vienna, Austria.

Microbiology Resource Announcements
|May 31, 2022
PubMed

Insights

Aeromonas dhakensis poses a significant health risk due to misidentification. This study presents the genome sequence of a virulent strain linked to snails and carrying the OXA-726 gene.

Area of Science:

  • Microbiology
  • Genomics
  • Infectious Diseases

Background:

  • Aeromonas dhakensis is recognized as a highly virulent Aeromonas species affecting both humans and animals.
  • Misidentification of Aeromonas dhakensis may obscure its true public health impact.
  • The genetic basis for the virulence and antibiotic resistance of Aeromonas dhakensis requires further elucidation.

Purpose of the Study:

  • To present the complete genome sequence of Aeromonas dhakensis Igbk (sequence type 1171).
  • To investigate the genetic makeup of an Aeromonas dhakensis strain associated with snails.
  • To identify specific genes, such as OXA-726, within the bacterial chromosome.

Main Methods:

  • Whole-genome sequencing of Aeromonas dhakensis Igbk.
  • Bioinformatic analysis for genome assembly and gene identification.
  • Comparative genomics to understand the genetic context of virulence and resistance genes.

Main Results:

  • The genome sequence of Aeromonas dhakensis Igbk (sequence type 1171) was successfully obtained and assembled.
  • The strain was found to be associated with snails, suggesting a potential environmental reservoir.
  • The OXA-726 gene, associated with antibiotic resistance, was identified within the bacterial chromosome.

Conclusions:

  • The genome sequence provides a valuable resource for understanding Aeromonas dhakensis virulence and evolution.
  • The identification of the OXA-726 gene highlights potential antimicrobial resistance concerns.
  • Further research is warranted to explore the role of snails in the transmission and epidemiology of Aeromonas dhakensis.

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