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Figure 4 | BMC Evolutionary Biology

Figure 4

From: Phylogenomics of the archaeal flagellum: rare horizontal gene transfer in a unique motility structure

Figure 4

A. Unrooted maximum likelihood phylogenetic trees of FlaD/E. Numbers at nodes indicate bootstrap values for 1000 replicates of the original dataset and posterior probabilities, computed by PHYML and MrBayes, respectively. The scale bar represents the average number of substitutions per site. The light blue circles indicate duplication events. B. Unrooted maximum likelihood phylogenetic trees of FlaA/B. Numbers at nodes indicate bootstrap values for 1000 replicates of the original dataset and posterior probabilities, computed by PHYML and MrBayes, respectively. The scale bar represents the average number of substitutions per site. Detailed cluster organizations are not shown. White arrows are used to schematize the clusters. The phylogenies show a clear separation between the type I clusters (characterized by a FlaF FlaG order of genes) and type II clusters (characterized by a FlaG FlaF order of genes).

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