Heatmap analysis of hormone-related genes differentially expressed in soybean V6 and R2 leaves under drought stress.

Genes shown are either up-regulated or down-regulated at least by two-fold. Blue and red color gradients indicate an increase or decrease in transcript abundance, respectively. Auxin (IAA, indole-3-acetic acid), ethylene (ET), ABA, jasmonate (JA), giberelline (GA), brassinosteroid (BR), cytokinin (CK) and salicylic acid (SA).