Phylogenetic tree showing the relatedness of the deduced full-length amino acid sequences of 22 BrLIM proteins and all LIM family proteins of A. thaliana , Populus trichocarpa and Oryza sativa . BrLIM proteins are indicated by square bullets. The scale represents the frequency of amino acid substitutions between sequences as determined by the Poisson evolutionary distance method. A species acronym is added before each LIM protein name: At, A. thaliana; Pt, Populus trichocarpa and Os, Oryza sativa. The old nomenclature of LIM genes are indicated under bracket. Details of each gene are given in Additional file 3: Table S3.