Campylobacter jejuni isolated from poultry meat in Brazil: in silico analysis and genomic features of two strains with different phenotypes of antimicrobial susceptibility

  • Simone de Fátima Rauber Würfel
  • Sérgio JorgeEmail author
  • Natasha Rodrigues de Oliveira
  • Frederico Schmitt Kremer
  • Christian Domingues Sanchez
  • Vinícius Farias Campos
  • Luciano da Silva Pinto
  • Wladimir Padilha da Silva
  • Odir Antônio Dellagostin
Original Article


Campylobacter jejuni is the most common bacterial cause of foodborne diarrheal disease worldwide and is among the antimicrobial resistant “priority pathogens” that pose greatest threat to public health. The genomes of two C. jejuni isolated from poultry meat sold on the retail market in Southern Brazil phenotypically characterized as multidrug-resistant (CJ100) and susceptible (CJ104) were sequenced and analyzed by bioinformatic tools. The isolates CJ100 and CJ104 showed distinct multilocus sequence types (MLST). Comparative genomic analysis revealed a large number of single nucleotide polymorphisms, rearrangements, and inversions in both genomes, in addition to virulence factors, genomic islands, prophage sequences, and insertion sequences. A circular 103-kilobase megaplasmid carrying virulence factors was identified in the genome of CJ100, in addition to resistance mechanisms to aminoglycosides, beta-lactams, macrolides, quinolones, and tetracyclines. The molecular characterization of distinct phenotypes of foodborne C. jejuni and the discovery of a novel virulence megaplasmid provide useful data for pan-genome and large-scale studies to monitor the virulent C. jejuni in poultry meat is warranted.


Genomics Bioinformatics Megaplasmid Antimicrobial resistance Virulence factors 



This study was financed in party by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES—Finance Code 001), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq-Grant 309101/2016-6), and Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS-Grant 17/2551-0000956-8).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.

Supplementary material

11033_2019_5174_MOESM1_ESM.doc (2 mb)
Supplementary material 1 (DOC 2053 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Simone de Fátima Rauber Würfel
    • 1
  • Sérgio Jorge
    • 1
    Email author
  • Natasha Rodrigues de Oliveira
    • 1
  • Frederico Schmitt Kremer
    • 1
  • Christian Domingues Sanchez
    • 1
  • Vinícius Farias Campos
    • 1
  • Luciano da Silva Pinto
    • 1
  • Wladimir Padilha da Silva
    • 2
  • Odir Antônio Dellagostin
    • 1
  1. 1.Centro de Desenvolvimento Tecnológico, Núcleo de BiotecnologiaUniversidade Federal de PelotasPelotasBrazil
  2. 2.Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu MacielUniversidade Federal de PelotasPelotasBrazil

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