Figure 3

The subtree of the CslE family and gene structures of the family members. This ML phylogeny is taken from Figure 1a. The gene structure was plotted using the GSDS server [71]. The branch length is scaled, i.e. proportional to the estimated number of molecular change. A scale bar is shown under the tree. The bootstrap values are shown to indicate the confidence level of the grouping. The intron-exon structure is shown on the right. The intron phase indicates the position of the intron within a codon. If it is not located within a codon (or located between two codons), the phase is 0. If it is located within a codon (or split a codon into two exons) and after the first base of the codon, the phase is 1, otherwise the phase is 2.