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Molecular Phylogeny of the Salmonellae: Relationships among Salmonella Species and Subspecies Determined from Four Housekeeping Genes and Evidence of Lateral Gene Transfer Events
Journal article   Open access   Peer reviewed

Molecular Phylogeny of the Salmonellae: Relationships among Salmonella Species and Subspecies Determined from Four Housekeeping Genes and Evidence of Lateral Gene Transfer Events

J. R McQuiston, S Herrera-Leon, B. C Wertheim, J Doyle, P. I Fields, R. V Tauxe and J. M Logsdon
Journal of bacteriology, Vol.190(21), pp.7060-7067
11/2008
DOI: 10.1128/JB.01552-07
PMCID: PMC2580703
PMID: 18757540
url
https://doi.org/10.1128/JB.01552-07View
Published (Version of record) Open Access

Abstract

The salmonellae are a diverse group of bacteria within the family Enterobacteriaceae that includes two species, Salmonella enterica and Salmonella bongori . In order to characterize the phylogenetic relationships of the species and subspecies of Salmonella , we analyzed four housekeeping genes, gapA, phoP, mdh and recA , comprising 3,459 bp of nucleotide sequence data for each isolate sequenced. Sixty-one isolates representing the most common serotypes of the seven subspecies of Salmonella enterica and six isolates of Salmonella bongori were included in this study. We present a robust phylogeny of the Salmonella species and subspecies that clearly defines the lineages comprising diphasic and monophasic subspecies. Evidence of intersubspecies lateral gene transfer of the housekeeping gene recA , which has not previously been reported, was obtained.
Population Genetics and Evolution

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