Linkage of avian and reproductive tract tropism with sequence divergence adjacent to the 5S ribosomal subunit rrfH of Salmonella enterica

被引：18

作者：

Morales, Cesar A. ^{[1
]}

Gast, Richard ^{[1
]}

Guard-Bouldin, Jean ^{[1
]}

机构：

[1] USDA ARS, Egg Safety & Qual Res Unit, Athens, GA 30613 USA

来源：

FEMS MICROBIOLOGY LETTERS | 2006年 / 264卷 / 01期

关键词：

Salmonella; serotype; microbiology; phylogenetics; comparative genomics; food safety;

D O I：

10.1111/j.1574-6968.2006.00432.x

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The 183 bp between the end of the 23S rrlH rRNA gene and the start of the 5S rrfH rRNA gene (ISR-1) and the 197 bp between the end of the rrfH rRNA gene and the start of the transfer RNA aspU (ISR-2) of Salmonella enterica ssp. enterica serotypes Enteritidis, Typhimurium, Pullorum, Heidelberg, Gallinarum, Typhi and Choleraesuis were compared. ISR-1s of D1 serotypes (Pullorum, Gallinarum and Enteritidis), B serotypes (Typhimurium and Heidelberg) and the C2 serotype Newport and the enteric fever pathogens serotype A Paratyphi and serotype D1 Typhi formed three clades, respectively. ISR-2 further differentiated the avian-adapted serotype Gallinarum from avian-adapted Pullorum and Salmonella bongori from S. enterica. The results suggest that serotypes Heidelberg and Choleraesuis share some evolutionary trends with egg-contaminating serotypes. In addition, ISR-1 and ISR-2 sequences that confirm serotype appear to be linked to clinically relevant host associations of the Salmonellae.

引用

页码：48 / 58

页数：11

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