RRC ID 34350
Author Habib C, Houel A, Lunazzi A, Bernardet JF, Olsen AB, Nilsen H, Toranzo AE, Castro N, Nicolas P, Duchaud E.
Title Multilocus sequence analysis of the marine bacterial genus Tenacibaculum suggests parallel evolution of fish pathogenicity and endemic colonization of aquaculture systems.
Journal Appl Environ Microbiol
Abstract The genus Tenacibaculum, a member of the family Flavobacteriaceae, is an abundant component of marine bacterial ecosystems that also hosts several fish pathogens, some of which are of serious concern for marine aquaculture. Here, we applied multilocus sequence analysis (MLSA) to 114 representatives of most known species in the genus and of the worldwide diversity of the major fish pathogen Tenacibaculum maritimum. Recombination hampers precise phylogenetic reconstruction, but the data indicate intertwined environmental and pathogenic lineages, which suggests that pathogenicity evolved independently in several species. At lower phylogenetic levels recombination is also important, and the species T. maritimum constitutes a cohesive group of isolates. Importantly, the data reveal no trace of long-distance dissemination that could be linked to international fish movements. Instead, the high number of distinct genotypes suggests an endemic distribution of strains. The MLSA scheme and the data described in this study will help in monitoring Tenacibaculum infections in marine aquaculture; we show, for instance, that isolates from tenacibaculosis outbreaks in Norwegian salmon farms are related to T. dicentrarchi, a recently described species.
Volume 80(17)
Pages 5503-14
Published 2014-9-1
DOI 10.1128/AEM.01177-14
PII AEM.01177-14
PMID 24973065
PMC PMC4136090
MeSH Animals Aquaculture* Cluster Analysis Fish Diseases / microbiology* Flavobacteriaceae Infections / microbiology Flavobacteriaceae Infections / veterinary* Molecular Sequence Data Multilocus Sequence Typing* Phylogeny Recombination, Genetic Sequence Analysis, DNA Symbiosis Tenacibaculum / classification* Tenacibaculum / genetics* Tenacibaculum / isolation & purification Tenacibaculum / physiology Virulence
IF 4.016
Times Cited 35
WOS Category BIOTECHNOLOGY & APPLIED MICROBIOLOGY MICROBIOLOGY
Resource
General Microbes JCM 13039 JCM 13491 JCM 15428