Fig 3. Sequence comparison by multiple clustal alignment of typical Sdr4L protein sequences from monocot and eudicot plant species.

Black arrows indicate predicted protein domains (PD319905 and PDB0A0W9). Critical amino acid sites (CAAS) responsible for functional divergence (Qk > 0.9, Type I and Type II) and phosphorylation sites are marked by pink triangles and blue stars, respectively. Adaptive selection sites for the site and branch site model are indicated by red and blue boxes, respectively. Putative nuclear localization signal (NLS) motifs are boxed.