Additional file 1.

Sequence similarity across the classical bordetellae O-antigen loci compared to B. bronchiseptica RB50. Percent similarity of the O-antigen locus and flanking genes based on RB50 was plotted between 0% and 100% using zPicture [42]. Intergenic regions and coding regions were highlighted with red and blue, respectively. The genome-wide SNP tree was superimposed on the left.

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Hester et al. BMC Evolutionary Biology 2013 13:209   doi:10.1186/1471-2148-13-209