ArticlePloS one2017
The genetic diversity of commensal Escherichia coli strains isolated from non-antimicrobial treated pigs varies according to age group.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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31 citing papers in PubMed.
- Intestinal colonization of weaner pigs by extended-spectrum-β-lactamase-encoding Escherichia coli classified for differential host-association using a phylogenetics-based approach.Scientific reports · 2026Article
- Isolation, evolution, and biological characterization of non-virulent and non-drug-resistant Escherichia coli from porcine intestine.Folia microbiologica · 2025Article
- First national study on genomic profiling ofEnvironmental challenges (Amsterdam, Netherlands) · 2025Article
- Genomic Insights of Antibiotic-ResistantAntibiotics (Basel, Switzerland) · 2025Article
- Prevalence and characterization of class I integrons in multidrug-resistant Escherichia coli isolates from humans and food-producing animals in Zhejiang Province, China.BMC microbiology · 2025Article
- Multidrug-Resistant VirulentInternational journal of microbiology · 2025Article
- Porcine beta defensin 2 attenuates inflammatory responses in IPEC-J2 cells against Escherichia coli via TLRs-NF-κB/MAPK signaling pathway.BMC veterinary research · 2024Article
- Antimicrobial Resistance in CommensalAntibiotics (Basel, Switzerland) · 2023Review
- Whole strains vs MGEs in short and longterm transmission of ESBL genes between healthcare and community settings in Uganda.Scientific reports · 2023Article
- The highly diverse plasmid population found inMicrobial genomics · 2023Article
- Genetic characterization of ESBL-producing and ciprofloxacin-resistantFrontiers in microbiology · 2023Article
- A role for ColV plasmids in the evolution of pathogenic Escherichia coli ST58.Nature communications · 2022Article
- Article
- Remarkable genomic diversity amongPeerJ · 2022Article
- Removal of antimicrobial prophylaxis and its effect on swine carriage of antimicrobial-resistant coliforms.Science progress · 2021Article
- Genetic Comparison of ESBL-ProducingAntibiotics (Basel, Switzerland) · 2021Article
- ESBL andFrontiers in microbiology · 2021Article
- High prevalence of mcr-1-encoded colistin resistance in commensal Escherichia coli from broiler chicken in Bangladesh.Scientific reports · 2020Article
- Whole Genome Sequencing Analysis of Porcine Faecal CommensalMicroorganisms · 2020Article
- Whole-genome sequence analysis of environmentalMicrobial genomics · 2020Article
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3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
This is the first report on the genetic diversity of commensal E. coli from pigs reared in an antibiotic free production system and belonging to different age groups. The study investigated the genetic diversity and relationship of 900 randomly collected commensal E. coli strains from non-antimicrobial treated pigs assigned to five different age groups in a Danish farm. Fifty-two unique REP profiles were detected suggesting a high degree of diversity. The number of strains per pig ranged from two to 13. The highest and the lowest degree of diversity were found in the early weaners group (Shannon diversity index, H' of 2.22) and piglets (H' of 1.46) respectively. The REP profiles, R1, R7 and R28, were the most frequently observed in all age groups. E. coli strains representing each REP profile and additional strains associated with the dominant profiles were subjected to PFGE and were assigned to 67 different genotypes. Whole genome sequence analysis of 52 isolates leading to unique REP profiles identified a high level of sequence variation. Six and six strains were assigned to sequence type ST10 and sequence type ST58, respectively. Virulence and antimicrobial resistance genes, as well as, genes associated with mobile genetic elements were commonly found among these commensal E. coli strains. Interestingly, strains yielding the three most common REP profiles clustered together in the SNPs phylogenetic tree, and such strains may represent the archetypal commensal E. coli in Danish pigs.
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