Heat map of the expression profiles of 43 Gm Hsp 20 candidates and 2 Acd genes. The expression profiles were analyzed under biotic (nematode infection) and abiotic (heat and cold) stress conditions. The expression profiles under stress conditions, based on qRT-PCR data, are presented as heat maps generated using TreeView 1.60 software. The transcript levels following heat shock stress are depicted using a color scale indicating log10 values and are shown beside the transcript levels following the other stresses. The spots highlighted in yellow indicate the genes that showed a significant expression level change (at a 5% significance level) compared with the control under cold and biotic stresses treatments. The spots highlighted in blue indicate the genes that did not exhibit a significant expression level change (at a 5% significance level) compared with the control under heat shock treatment.