Figure 7

Relative expression of MADS-box genes in plants exposed to a sudden drop in temperature from 15°C to 4°C. Most MADS-box genes didn't show a statistically significant response to the cold shock. In the two winter varieties, TaAGL42 showed a marked increase in expression in the cold treated plants relative to the controls (> 3-fold change, p = 0.05).TaVRT2 showed a >1.5-fold increase in all three varieties (p = 0.05). Code: H = Harnesk; P = Paragon; S = Solstice; N = no cold treatment; C = cold shock.