Figure 7. Quantitative RT-PCR analysis of 22 selected CpbHLH genes under cold stress condition (4 °C).
The data are expressed as means ± SD of three independent biological determinations. Untreated seedlings were used as the control groups. ∗P < 0.05 and ∗∗P < 0.01 (Student’s t test) indicate significant differences between treated seedlings and control groups.