Fig. 4.

Expression analysis of CP12-1, CP12-2, CP12-3, GAPA-1, GAPB, and PRK genes of Arabidopsis in response to temperature. Arabidopsis plants were grown in soil for 4 weeks under 14 h light/10 h dark, 25 °C, transferred to (A) 5 °C for 24 h or 48 h, and then returned to 25 °C for 24 h; and (B) 42 °C for 1, 2, and 4 h, and then returned to 25 °C for 2 h. RT-PCR analysis was carried out as described in Fig. 2; results are representative of two independent experiments.