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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Environmental Microbial & Food Safety Laboratory » Research » Publications at this Location » Publication #336705

Research Project: Ecology and Molecular Epidemiology of Zoonotic Bacterial Pathogens Asociated with Dairy Farms

Location: Environmental Microbial & Food Safety Laboratory

Title: The Genome sequences of four non-human/non-clinical Salmonella enterica serovar Kentucky ST198 isolates recovered between 1972 and 1973

Author
item Kim, Seon-woo - University Of Maryland
item Haley, Bradd
item Roberson, Dwayne - Food And Drug Administration(FDA)
item Allard, Mark - Food And Drug Administration(FDA)
item Hammack, Thomas - Food And Drug Administration(FDA)
item Brown, Eric - Food And Drug Administration(FDA)
item Van Kessel, Jo Ann

Submitted to: Genome Announcements
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 1/12/2017
Publication Date: 3/16/2017
Citation: Kim, S., Haley, B.J., Roberson, D., Allard, M., Hammack, T., Brown, E.W., Van Kessel, J.S. 2017. The Genome sequences of four non-human/non-clinical Salmonella enterica serovar Kentucky ST198 isolates recovered between 1972 and 1973. Genome Announcements. https://doi.org/10.1128/genomeA.01699-16.

Interpretive Summary: Salmonella Kentucky is a Gram-negative bacterium that is frequently isolated from chicken and dairy cow feces, occasionally from retail poultry products, and only occasionally from human clinical samples in the United States. However, this bacterium is frequently isolated from human clinical samples outside of the U.S., particularly in Europe, Africa, Asia, and the Middle East. The difference in isolation rates of S. Kentucky from human clinical samples on different continents is most likely due to the S. Kentucky sequence types (or groups of closely related strains) that are most common in the food-producing animals in each region. In the United States, sequence type 152 is the most common S. Kentucky type in poultry and dairy, whereas as sequence type 198 is the most common S. Kentucky type in these animals in many other parts of the world. In an ongoing effort to evaluate differences between S. Kentucky sequence type 152 and 198 and to determine the genomic features involved in survival in the poultry and dairy cow guts, we sequenced the genomes of four sequence type 198 strains isolated in the Americas between 1972 and 1973 and added these data to the public domain.

Technical Abstract: Salmonella Kentucky is a polyphyletic member of S. enterica subclade A1 with multiple sequence types that often colonize the same hosts but in different frequencies on different continents. To evaluate the genomic features involved in S. Kentucky host specificity we sequenced the genomes of four isolates recovered in the 1970s.