Two novel Salmonella genomic island 1 variants in Proteus mirabilis isolates from swine farms in China.

نویسندگان

  • Chang-Wei Lei
  • An-Yun Zhang
  • Bi-Hui Liu
  • Hong-Ning Wang
  • Li-Qin Yang
  • Zhong-Bin Guan
  • Chang-Wen Xu
  • Dong-Dong Zhang
  • Yong-Qiang Yang
چکیده

Four different Salmonella genomic island 1 (SGI1) variants, including two novel variants, were characterized in one Salmonella enterica serovar Rissen sequence type ST1917 isolate and three Proteus mirabilis isolates from swine farms in China. One novel variant was derived from SGI1-B with the backbone gene S021 disrupted by a 12.72-kb IS26 composite transposon containing the dfrA17-aadA5 cassettes and macrolide inactivation gene cluster mphA-mrx-mphR. The other one was an integron-free SGI1 and contained a 183-bp truncated S025 next to IS6100 and S044.

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منابع مشابه

Molecular characteristics of Salmonella genomic island 1 in Proteus mirabilis isolates from poultry farms in China.

Six out of the 64 studied Proteus mirabilis isolates from 11 poultry farms in China contained Salmonella genomic island 1 (SGI1). PCR mapping showed that the complete nucleotide sequences of SGI1s ranged from 33.2 to 42.5 kb. Three novel variants, SGI1-W, SGI1-X, and SGI1-Y, have been characterized. Resistance genes lnuF, dfrA25, and qnrB2 were identified in SGI1 for the first time.

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Salmonella Genomic Island 1 ( SGI 1 ) , Variant SGI 1 - I , and a New 1 Variant SGI 1 - O in Proteus mirabilis Clinical and Food Isolates from 2 China 3 4 5 6

25 26 27 Salmonella genomic island 1 (SGI1) and variants (SGI1-I and the new variant SGI128 O) were mapped in five strains of Proteus mirabilis isolated from humans and food 29 in China. Sequencing showed SGI1 and variants were integrated at the 3’-end of the 30 chromosomal thdF gene as previously described in Salmonella strains. 31

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Emergence of Salmonella genomic island 1 (SGI1) among Proteus mirabilis clinical isolates in Dijon, France.

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References 1 Boyd D, Peters GA, Cloeckaert A et al. Complete nucleotide sequence of a 43-kilobase genomic island associated with the multidrug resistance region of Salmonella enterica serovar Typhimurium DT104 and its identification in phage type DT120 and serovar Agona. J Bacteriol 2001; 183: 5725–32. 2 Ahmed AM, Hussein AI, Shimamoto T. Proteus mirabilis clinical isolate harbouring a new vari...

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عنوان ژورنال:
  • Antimicrobial agents and chemotherapy

دوره 59 7  شماره 

صفحات  -

تاریخ انتشار 2015