ABSTRACT
Listeria monocytogenes is a foodborne pathogen of global concern because of the high mortality rate among patients. The draft genome sequences of three L. monocytogenes strains isolated from foods are reported here. The availability of these genomes should provide useful information on the genomic diversity of L. monocytogenes isolated from foods in China.
GENOME ANNOUNCEMENT
Listeria monocytogenes is an important foodborne pathogen causing severe illness, such as septicemia and meningitis, among pregnant women, elderly people, and immunocompromised individuals (1, 2). L. monocytogenes is ubiquitous and has been reportedly isolated from a wide range of foods, including meat, poultry, dairy products, fruit, and vegetables (3, 4). Whole-genome sequencing has become an essential tool for investigating the evolution, diversity, and pathogenicity of foodborne bacterial pathogens (5–9). The draft genome sequences of three L. monocytogenes strains from foods in the Shanghai area of China are reported here.
Genomic DNA was isolated from overnight cultures and sequenced using MiSeq (Illumina, San Diego, CA) to obtain draft genomes. Genomic data were assembled using SOAPdenovo version 2 (10), including the serotype 1/2c strain SHL12-2 (16 contigs, 3.01 Mb, 583,457 bp N50 contig size, and 2,978 identified genes), serotype 1/2a strain SHL12-22 (20 contigs, 3.02 Mb, 506,776 bp N50 contig size, and 2,943 identified genes), and serotype 1/2a strain SHL13-12 (17 contigs, 2.99 Mb, 524,215 bp N50 contig size, and 2,884 identified genes). These sequences were annotated using the NCBI Prokaryotic Genome Annotation Pipeline (11).
Accession number(s).
These three draft genome sequences have been deposited in GenBank under the accession numbers LRTW00000000, LRTX00000000, and LRTY00000000.
ACKNOWLEDGMENTS
This work was supported by the National High Technology Research and Development Program of China (863 Program) (grant 2012AA101601) and the Mega-projects of Science and Technology Research of China (grants 2012ZX10004215-003 and 2012ZX10004201).
Footnotes
Citation Su X, Cao G, Kuang D, Zhang J, Chen Y, Allard M, Brown E, Shi X, Meng J, Xu X. 2017. Draft genome sequences of three Listeria monocytogenes isolates from foods in China. Genome Announc 5:e00220-17. https://doi.org/10.1128/genomeA.00220-17.
REFERENCES
- 1.Chen Y, Burall LS, Luo Y, Timme R, Melka D, Muruvanda T, Payne J, Wang C, Kastanis G, Maounounen-Laasri A, De Jesus AJ, Curry PE, Stones R, K’Aluoch O, Liu E, Salter M, Hammack TS, Evans PS, Parish M, Allard MW, Datta A, Strain EA, Brown EW. 2016. Listeria monocytogenes in stone fruits linked to a multistate outbreak: enumeration of cells and whole-genome sequencing. Appl Environ Microbiol 82:7030–7040. doi: 10.1128/AEM.01486-16. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 2.Cossart P. 2011. Illuminating the landscape of host-pathogen interactions with the bacterium Listeria monocytogenes. Proc Natl Acad Sci USA 108:19484–19491. doi: 10.1073/pnas.1112371108. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 3.Rückerl I, Muhterem-Uyar M, Muri-Klinger S, Wagner KH, Wagner M, Stessl B. 2014. L. monocytogenes in a cheese processing facility: learning from contamination scenarios over three years of sampling. Int J Food Microbiol 189:98–105. doi: 10.1016/j.ijfoodmicro.2014.08.001. [DOI] [PubMed] [Google Scholar]
- 4.Zhang Y, Yeh E, Hall G, Cripe J, Bhagwat AA, Meng J. 2007. Characterization of Listeria monocytogenes isolated from retail foods. Int J Food Microbiol 113:47–53. doi: 10.1016/j.ijfoodmicro.2006.07.010. [DOI] [PubMed] [Google Scholar]
- 5.Cao G, Allard M, Strain E, Stones R, Zhao S, Brown E, Meng J. 2014. Genetic diversity of Salmonella pathogenicity islands SPI-5 and SPI-6 in Salmonella Newport. Foodborne Pathog Dis 11:798–807. doi: 10.1089/fpd.2014.1784. [DOI] [PubMed] [Google Scholar]
- 6.Cao G, Meng J, Strain E, Stones R, Pettengill J, Zhao S, McDermott P, Brown E, Allard M. 2013. Phylogenetics and differentiation of Salmonella Newport lineages by whole genome sequencing. PLoS One 8:e55687. doi: 10.1371/journal.pone.0055687. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 7.Ju W, Cao G, Rump L, Strain E, Luo Y, Timme R, Allard M, Zhao S, Brown E, Meng J. 2012. Phylogenetic analysis of non-O157 Shiga toxin-producing Escherichia coli strains by whole-genome sequencing. J Clin Microbiol 50:4123–4127. doi: 10.1128/JCM.02262-12. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 8.Lienau EK, Strain E, Wang C, Zheng J, Ottesen AR, Keys CE, Hammack TS, Musser SM, Brown EW, Allard MW, Cao G, Meng J, Stones R. 2011. Identification of a salmonellosis outbreak by means of molecular sequencing. N Engl J Med 364:981–982. doi: 10.1056/NEJMc1100443. [DOI] [PubMed] [Google Scholar]
- 9.Zhang J, Cao G, Xu X, Allard M, Li P, Brown E, Yang X, Pan H, Meng J. 2016. Evolution and diversity of Listeria monocytogenes from clinical and food samples in Shanghai, China. Front Microbiol 7:1138. doi: 10.3389/fmicb.2016.01138. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 10.Luo R, Liu B, Xie Y, Li Z, Huang W, Yuan J, He G, Chen Y, Pan Q, Liu Y, Tang J, Wu G, Zhang H, Shi Y, Liu Y, Yu C, Wang B, Lu Y, Han C, Cheung DW, Yiu SM, Peng S, Xiaoqian Z, Liu G, Liao X, Li Y, Yang H, Wang J, Lam TW, Wang J. 2012. SOAPdenovo2: an empirically improved memory-efficient short-read de novo assembler. GigaScience 1:18. doi: 10.1186/2047-217X-1-18. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 11.Tatusova T, DiCuccio M, Badretdin A, Chetvernin V, Nawrocki EP, Zaslavsky L, Lomsadze A, Pruitt KD, Borodovsky M, Ostell J. 2016. NCBI prokaryotic genome annotation pipeline. Nucleic Acids Res 44:6614-24. doi: 10.1093/nar/gkw569. [DOI] [PMC free article] [PubMed] [Google Scholar]