Fig. 6

Expression pattern of SbHDAC family genes in response to low temperature, high temperature, drought, osmotic and salty stresses. Different lowercase letters indicate a significant difference determined by the Duncan’s new multiple range test (P-value < 0.05); The reference gene is SbEIF4a; The y-axis value represents the relative expression. Low temperature: 4 °C; High temperature: 40 °C; Drought and osmotic stress: 20% PEG6000 and 300 mM D-mannitol; Salty stress: 250 mM NaCl