Comparative polyphasic characterization of Weissella strains isolated from beaked whale and rainbow trout (Oncorhynchus mykiss): confirmation of Weissella ceti sp. nov. and description of the novel Weissella tructae sp. nov. isolated from farmed rainbow trout.

ABSTRACT: The weissellosis agent bacterium (WS08^T = CBMAI 2730) was isolated from diseased rainbow trout (Oncorhynchus mykiss) in Brazil. The whole genome sequence of this strain was compared with the Mexican W-1 strain, also isolated from diseased rainbow trout, and with the Weissella ceti type strain CECT 7719 ^T (= 1119-1A-09 ^T = CCUG 59653 ^T), recovered from the beaked whale. Digital DNA-DNA hybridization pairwise analyses scored 98.7% between the Mexican W-1 and Brazilian WS08^T but just 24.4% for both fish isolates compared to the W. ceti type strain CECT 7719 ^T. The 16S rRNA gene sequence comparisons with isolates of W. ceti, available at GenBank, were conducted. All rainbow trout-pathogenic isolates grouped close (97% bootstrap

SUBMITTER: Pereira FL 

PROVIDER: S-EPMC9679048 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature