Figure 8.

Relative expression levels of MAPK6 under different experimental conditions normalized to the top two/three most stable genes and the least stable genes. (a) 4 °C cold stress; (b) 42 °C heat stress; (c) drought stress simulated by 15% PEG-6000 treatment; (d) salt stress simulated by 200 mM NaCl treatment; (e) 200 μM ABA treatment; (f) 200 μM GA₃ treatment; (g) 200 μM MeJA treatment; (h) 200 μM SA treatment; and (i) in different tissues (stems, tender needles, needles, cones, and seeds). The error bars represent standard deviations (SD) (n = 3).