Abstract
Salmonella enterica serovar Typhimurium pulsed-field gel electrophoresis cluster VII has been isolated from cattle populations in Japan since the mid-2000s. Some cluster VII isolates exhibited extended-spectrum cephalosporin resistance defined by the blaCMY-2 gene located in a chromosomal genomic island, GI-VII-6. We determined the whole-genome sequence of strain L-3553 as the reference strain.
Highlights
Salmonella enterica serovar Typhimurium pulsed-field gel electrophoresis cluster VII has been isolated from cattle populations in Japan since the mid-2000s
Salmonella enterica serovar Typhimurium strains belonging to pulsed-field gel electrophoresis cluster VII and having no recognized phage type have been dominant among cattle populations in Hokkaido, Japan, since the mid-2000s (1)
The trimmed and filtered short reads were assembled with the De Novo Assembler program in CLC Genomics Workbench v. 6.5 (CLC Bio, Aarhus, Denmark)
Summary
Salmonella enterica serovar Typhimurium pulsed-field gel electrophoresis cluster VII has been isolated from cattle populations in Japan since the mid-2000s. Salmonella enterica serovar Typhimurium strains belonging to pulsed-field gel electrophoresis cluster VII and having no recognized phage type have been dominant among cattle populations in Hokkaido, Japan, since the mid-2000s (1). Some of the cluster VII isolates exhibited resistance to extended-spectrum cephalosporin and harbored a resistance island, GI-VII-6, in their chromosome (2). GI-VII-6 contains multiple antimicrobial resistance genes, including blaCMY-2.
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