Journal
PATHOGENS
Volume 10, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/pathogens10121605
Keywords
vibriosis; virulence; antibiotic resistance; pangenome; whole genome sequencing
Categories
Funding
- Colciencias [210471250745, RC-862-2017]
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This study focused on pangenome analysis of six Vibrio species to determine genetic architectures of potentially virulent and antimicrobial resistance traits. The research provided genomic information to the intensified surveillance program in Colombia to establish potential sources of vibriosis. Virulence gene homologues were found even in non-pathogenic species, highlighting the importance of genomic characterization in public health monitoring.
There is widespread concern about the increase in cases of human and animal infections caused by pathogenic Vibrio species due to the emergence of epidemic lineages. In Colombia, active surveillance by the National Institute of Health (INS) has confirmed the presence of Vibrio; however, in routine surveillance, these isolates are not genomically characterized. This study focused on the pangenome analysis of six Vibrio species: V. parahaemolyticus, V. vulnificus, V. alginolyticus, V. fluvialis, V. diabolicus and V. furnissii to determine the genetic architectures of potentially virulent and antimicrobial resistance traits. Isolates from environmental and clinical samples were genome sequenced, assembled and annotated. The most important species in public health were further characterized by multilocus sequence typing and phylogenomics. For V. parahaemolyticus, we found the virulent ST3 and ST120 genotypes. For V. vulnificus, we identified isolates belonging to lineages 1 and 2. Virulence gene homologues between species were found even in non-pathogenic species such as V. diabolicus. Annotations related to the mobilome, integrative mobile and conjugative elements and resistance genes were obtained from environmental and clinical isolates. This study contributes genomic information to the intensified surveillance program implemented by the INS to establish potential sources of vibriosis in Colombia.
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