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Fig. 1 | BMC Plant Biology

Fig. 1

From: Characterization of poplar growth-regulating factors and analysis of their function in leaf size control

Fig. 1

Phylogenetic relationships and gene structure of A. thaliana (At) and P. trichocarpa (Ptr) GRF genes. a The phylogenetic tree of AtGRFs and PtrGRFs. Full-length GRF protein sequences were aligned using Clustal X2.1 and a neighbor-joining phylogenetic tree was constructed using MEGA 5.0. The PtrGRFs were classified into six groups (marked with different background colors) according to the phylogenetic relationship. b Conserved domains or motifs in the GRF proteins. QLQ and WRC domains, FFD, TQL and GPL motifs (represented by boxes of different color) are named because of conserved Gln-Leu-Gln (QX3LX2Q), Trp-Arg-Cys (WRC), Phe-Phe-Asp (FFD), Thr-Gln-Leu (TQL) and Gly-Pro-Leu (GPL) residues contained in their sequences

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