Fig. 4. Differential expression patterns of genes corresponding to drought-regulated and/or salinity-regulated clones. Primer pairs used for RT-PCR are listed in Table 1. The cDNAs were synthesized from total RNAs isolated from control seedling roots (CR) and shoots (CS), 250 mM NaCl-treated seedling roots (SR) and shoots (SS), drought-treated seedling roots (DR) and shoots (DS), control leaves (CL) and leaves from drought-treated plants (DL). The 18S rRNA was used as an internal control for amplification and quantification.