Fig. 6

Comparison of the transcript profiles of transcription factor genes related to cell wall construction, NAC (a), 2nd layer MYB (b), downstream TF (MYB is abbreviated as M), (c), bHLH (d), AUX/IAA (e), HD (f), WRKY (g) and LIM (h). Numbers on the X-axis represent gene numbers and Arabidopsis homolog gene names listed in Additional file 9: Table S6. RPKM values are plotted on the Y-axis. The data collected from three technical replicates of each plant were analyzed. Mean values and standard deviations are shown with error bars. Asterisks or double asterisks indicate significant differences at p < 0.05 or p < 0.01, respectively