Fig. 2

Phylogenetic relationships, gene structure and motif compositions of soybean NAC genes. a Multiple alignments of 139 full length proteins of NAC genes from Soybean were executed by MEGA 6.0 to construct the phylogenetic tree by the Neighbour-Joining (NJ) method with 1,000 bootstrap replicates. MEGA6.0 by the Neighbor-Joining (NJ) method with 1,000 bootstrap replicates. b Exon/intron structures of NAC genes from Soybean. Exons and introns are represented by blue, yellow boxes and black lines, respectively. c Schematic representation of the conserved motifs in the NAC proteins from Soybean elucidated by MEME. Each motif is represented by a colored box. The black lines represent the non-conserved sequences. Refer to Additional file 3 for the details of individual motif