Transcription factors families of the up-regulated genes at the early stage of NaHCO
treatment. There are 29 transcription factors families. Transcription factors families for gene group induced at 3 h and 6 h of NaHCO3 stress treatment (total number, 147) (green bars) and for whole genome genes (yellow bars) were shown with their percentages. Transcription factors family significantly over-represented in the respond group was shown with asterisk (P < 0.01, FDR < 0.05).