Phylogenomic investigation of IncI1-I plasmids harboring blaCMY-2 and blaSHV-12 in salmonella enterica and Escherichia coli in multiple countries

Luis Ricardo Castellanos, Linda van der Graaf-Van Bloois, Pilar Donado-Godoy, Dik J. Mevius, Jaap A. Wagenaar, Joost Hordijk, Aldert L. Zomer*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)


The objective of this study was to elucidate the genetic and evolutionary relatedness of blaCMY-2- and blaSHV-12-carrying IncI1-I plasmids. Phylogenomic analysis based on core genome alignments and gene presence/absence was performed for different IncI1-I sequence types (STs). Most IncI1-I/ST12 and IncI1-I/ ST231 plasmids had near-identical core genomes. The data suggest that widely occurring blaCMY-2-carrying IncI1-I/ST12 plasmids originate from a common ancestor. In contrast, blaSHV-12 was inserted independently into different IncI1-I/ST231-related plasmids.

Original languageEnglish
Article numbere02546-18
JournalAntimicrobial Agents and Chemotherapy
Issue number7
Publication statusPublished - 2019


  • Blc
  • Broiler
  • Chicken
  • DeoR
  • IS1294
  • IS26
  • ISEcp1
  • S. Heidelberg
  • Salmonella Paratyphi B var. Java
  • SugE
  • Tn1721

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