AAC Accepts, published online ahead of print on 2 November 2009
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Antimicrob. Agents Chemother. doi:10.1128/AAC.00895-09
Copyright (c) 2009, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved.

Unusual Class 1 Integron Configuration found in SGI2 from Salmonella enterica Serovar Emek

Neil L. Wilson and Ruth M Hall*

School of Molecular and Microbial Biosciences, The University of Sydney, NSW 2006, Australia

* To whom correspondence should be addressed. Email: ruth.hall{at}usyd.edu.au.


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Abstract

SGI2 is an independently-derived genomic island related to SGI1 with the integron in a different position. The integron in SGI2 was found to include an additional 2.1 kb derived from the tni module of Tn5058, Tn502 or Tn512 that was not detected previously. Independent evolution of the backbone was confirmed with 21 single base differences found in over 11.5 kb, representing 40% of the 27.4 kb SGI2 backbone.