Figure 1

Step-by-step example of the consolidation and rearrangement method of Horizstory. Where indicated as resolved, nodes were supported by a bootstrap value better than 80%. Two minimal scenarios were found in the analysis of the MviN tree shown in this example, both suggesting an equivalent pair of lateral gene transfer events (as illustrated in Lumbermill, Figure 2). Other (longer or unproductive) scenarios are not shown. A productive move is one where the gene tree gains further similarity to the reference tree, permitting further consolidation (see text). Ba, Buchnera aphidicola; Ec, Escherichia coli; Hi, Haemophilus influenzae; Pa, Pseudomonas aeruginosa; Pm, Pasteurella multocida; Se, Salmonella enterica; Vc, Vibrio cholerae; Wg, Wigglesworthia glossinidia; Xa, Xanthomonas axonopodis; Xc, Xanthomonas campestris; Xf, Xylella fastidiosa; YpC, Yersinia pestis CO92; YpK, Yersinia pestis KIM.