Fig. 7From: Comprehensive genomic characterization of NAC transcription factor family and their response to salt and drought stress in peanutExpression profiling of AhNAC genes under drought stress. The Y-axis indicates the relative expression level. The X-axis represents hours (0, 6, 12, 18, 24, 36, and 48) after drought treatment in cultivated peanut. The actin gene was used as an internal control. The error bars were obtained from three biological replicates, and the asterisks represent the genes whose expression was significantly up- or downregulated under salt stress, according to t-tests (*, p < 0.05; **, P < 0.01)Back to article page