Figure 8

Unrooted radial bootstrapped protein sequence tree for family of ATP-dependent bilin transporters based on PHYLIP analyses using Arabidopsis WBC23 (UniProt NP_850781) as the reference sequence. Representative genera are shown, together with E values, indicating the numerical expectation that the alignment with the reference sequence has arisen by chance. Support values (in red) were determined by bootstrap analysis (Additional file 1d). Branch lengths are proportional to number of amino acid substitutions per position. Additional file 2d gives branch length values and confidence limits from the PROML outfile.