Fig. 7.

Expression patterns of DoAINV genes in response to abiotic stress. A Expression profiles of DoAINV genes in the D. officinale DanXia cultivar under cold, dehydration, and ABA treatment stresses. The heatmap was generated using TBtools software, based on the log₂ (FPKM). Blue and red represent low and high levels of transcript abundance, respectively. B, C and D Expression levels of DoAINV genes in the D. officinale DanXia cultivar in response to cold, dehydration, and ABA treatment stresses, respectively, as determined by qRT-PCR experiments. The x-axis items, 0 h, 3 h, 6 h, 9 h, 12 h and 24 h, indicate different treatment times for cold stress (B), dehydration stress (C), and ABA stress (D), respectively. The y-axis represents the relative expression level. The values are the mean of three biological replicates, with SDs indicated by error bars. Significant differences were analyzed by t-test. **** and *** significant difference represents P < 0.001, ** Significant difference at P < 0.01, * significant difference (P < 0.05)