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Comparative in silico genome analysis of Clostridium perfringens unravels stable phylogroups with different genome characteristics and pathogenic potential.
- Source :
-
Scientific reports [Sci Rep] 2021 Mar 24; Vol. 11 (1), pp. 6756. Date of Electronic Publication: 2021 Mar 24. - Publication Year :
- 2021
-
Abstract
- Clostridium perfringens causes a plethora of devastating infections, with toxin production being the underlying mechanism of pathogenicity in various hosts. Genomic analyses of 206 public-available C. perfringens strains´ sequence data identified a substantial degree of genomic variability in respect to episome content, chromosome size and mobile elements. However, the position and order of the local collinear blocks on the chromosome showed a considerable degree of preservation. The strains were divided into five stable phylogroups (I-V). Phylogroup I contained human food poisoning strains with chromosomal enterotoxin (cpe) and a Darmbrand strain characterized by a high frequency of mobile elements, a relatively small genome size and a marked loss of chromosomal genes, including loss of genes encoding virulence traits. These features might correspond to the adaptation of these strains to a particular habitat, causing human foodborne illnesses. This contrasts strains that belong to phylogroup II where the genome size points to the acquisition of genetic material. Most strains of phylogroup II have been isolated from enteric lesions in horses and dogs. Phylogroups III, IV and V are heterogeneous groups containing a variety of different strains, with phylogroup III being the most abundant (65.5%). In conclusion, C. perfringens displays five stable phylogroups reflecting different disease involvements, prompting further studies on the evolution of this highly important pathogen.
- Subjects :
- Chromosomes, Bacterial
Clostridium perfringens pathogenicity
Computational Biology
DNA Transposable Elements
Genome-Wide Association Study
Multigene Family
Polymorphism, Single Nucleotide
Virulence genetics
Virulence Factors
Clostridium Infections microbiology
Clostridium perfringens classification
Clostridium perfringens genetics
Genome, Bacterial
Genomics methods
Phylogeny
Subjects
Details
- Language :
- English
- ISSN :
- 2045-2322
- Volume :
- 11
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Scientific reports
- Publication Type :
- Academic Journal
- Accession number :
- 33762628
- Full Text :
- https://doi.org/10.1038/s41598-021-86148-8