Figure 18

(a) Unrooted radial bootstrapped protein sequence tree for ABC-type transporters based on PHYLIP analyses using to Arabidopsis AtMRP2 (UniProt NP_181013) 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 1n). Branch lengths are proportional to number of amino acid substitutions per position. Additional file 2n gives branch length values and confidence limits from the PROML outfile. Conserved domains in (b) Arabidopsis and (c) Ostreococcus MRP2 sequences. AAA, ATPase region; blue block, transmembrane segment; pink block, low complexity region.