Identification of Four Distinct Phylogenetic Groups in Flavobacterium columnare With Fish Host Associations.

ABSTRACT: Columnaris disease, caused by the Gram-negative bacterium Flavobacterium columnare, is one of the most prevalent fish diseases worldwide. An exceptionally high level of genetic diversity among isolates of F. columnare has long been recognized, whereby six established genomovars have been described to date. However, little has been done to quantify or characterize this diversity further in a systematic fashion. The objective of this research was to perform phylogenetic analyses of 16S rRNA and housekeeping gene sequences to decipher the genetic diversity of F. columnare. Fifty isolates and/or genomes of F. columnare, originating from diverse years, geographic locations, fish hosts, and representative of the six genomovars were analyzed in this study. A multilocus

SUBMITTER: LaFrentz BR 

PROVIDER: S-EPMC5859164 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature