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. 2006 May 31;7(5):R44. doi: 10.1186/gb-2006-7-5-r44

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Copyright © 2006 Mau et al.; licensee BioMed Central Ltd.

This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Mosaic operons and genes. Three of six rha genes (rhaB, rhaA, and rhaD) belong to an operon on the reverse strand. This operon is unusual because well-defined recombination events clearly fall within gene boundaries; rhaD contains two dense KC clusters, whereas rhaA and rhaB contain predominantly KS and KO SNDs, respectively. In a nearby operon consisting of fdoG, fdoH, fdoI, and fdhE, there has been a KC intragenic recombination event with fdoG a mosaic, resulting from two recombination events, one of which is shared with fdoH.