Fig. 3From: Genome-wide identification and expression analysis of the bHLH transcription factor family and its response to abiotic stress in sorghum [Sorghum bicolor (L.) Moench]Phylogenetic relationships, gene-structure analysis, and motif distributions of S. bicolor bHLH genes. a Phylogenetic tree was constructed by the NJ method with 1000 replicates on each node. b Exons and introns are indicated by yellow rectangles and gray lines, respectively. c Amino acid motifs in the SbbHLH proteins (1–10) are represented by colored boxes. The black lines indicate relative protein lengthsBack to article page