Analysis of the hypervariable region of the Salmonella enterica genome associated with tRNA(leuX)

The divergence of Salmonella enterica and Escherichia coli is estimated to have occurred approximately 140 million years ago. Despite this evolutionary distance, the genomes of these two species still share extensive synteny and homology. However, there are significant differences between the two species in terms of genes putatively acquired via various horizontal transfer events. Here we report on the composition and distribution across the Salmonella genus of a chromosomal region designated SPI-10 in Salmonella enterica serovar Typhi and located adjacent to tRNA(leuX). We find that across the Salmonella genus the tRNA(leuX) region is a hypervariable hot spot for horizontal gene transfer; different isolates from the same S. enterica serovar can exhibit significant variation in this region. Many P4 phage, plasmid, and transposable element-associated genes are found adjacent to tRNA(leuX) in both Salmonella and E. coli, suggesting that these mobile genetic elements have played a major role in driving the variability of this region.

Medienart:

Artikel

Erscheinungsjahr:

2005

Erschienen:

2005

Enthalten in:

Zur Gesamtaufnahme - volume:187

Enthalten in:

Journal of bacteriology - 187(2005), 7 vom: 18. Apr., Seite 2469-82

Sprache:

Englisch

Beteiligte Personen:

Bishop, Anne L [VerfasserIn]
Baker, Stephen [VerfasserIn]
Jenks, Sara [VerfasserIn]
Fookes, Maria [VerfasserIn]
Gaora, Peadar O [VerfasserIn]
Pickard, Derek [VerfasserIn]
Anjum, Muna [VerfasserIn]
Farrar, Jeremy [VerfasserIn]
Hien, Tran T [VerfasserIn]
Ivens, Al [VerfasserIn]
Dougan, Gordon [VerfasserIn]

Themen:

Comparative Study
Complementarity Determining Regions
DNA, Circular
Journal Article
RNA, Bacterial
RNA, Transfer, Leu
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 28.04.2005

Date Revised 27.04.2023

published: Print

GENBANK: AY775127, AY775128, AY775129, AY786416, AY795072, AY795073

Citation Status MEDLINE

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM154282863