Figure 2
From: The gibberellin GID1-DELLA signalling module exists in evolutionarily ancient conifers
Comparative sequence analysis for 11 DELLA proteins or homologues in angiosperms with or without vascular tissue (rice, Arabidopsis, Selaginella, and moss) and conifers (pine). (A) Phylogenetic analysis of DELLA proteins or homologues. The maximum likelihood tree is based on the complete amino acid sequences of DELLA proteins from P. tabuliformis, A. thaliana, P. patens, S. moellendorffii, and O. sativa. The species, and gene names and IDs are displayed on the right side of each branch. Bootstrap values were obtained by running 1,000 bootstrap replicates. The horizontal branch lengths are proportional to the estimated number of amino acid substitutions per residue. The arrows indicate P. tabuliformis genes isolated in the present study. (B) DELLA domain sequence alignment for DELLA homologues in A. thaliana, O. sativa, P. patens, S. moellendorffii, and P. tabuliformis. Black and gray boxes indicate identical or similar residues, respectively. Asterisks at the bottom represent identical residues. The DELLA Δ17 domain range is depicted by a black line at the bottom. The sizes of the letters above the sequence alignment represent the residue frequency at each site for the 11 studied gene sequences. The arrows indicate the two P. tabuliformis genes isolated for this study.
