Fig. 1From: Temporal transcriptome profiling reveals expression partitioning of homeologous genes contributing to heat and drought acclimation in wheat (Triticum aestivum L.)Comparative analysis of transcriptome profiles of wheat seedling leaves under DS, HS and HD. (a) Principal component analysis (PCA) of mRNA populations from control, DS-1Â h, DS-6Â h, HS-1Â h, HS-6Â h, HD-1Â h and HD-6Â h, each sample contained two replicates. Principal components (PCs) 1, 2 and 3 account for 79Â %, 10Â % and 5Â % of the variance, respectively. PCA plot shows two distinct groups of mRNA populations. Group I: CK (green), DS-1Â h (yellow) and DS-6Â h (brown); Group II: HS-1Â h (light red), HS-6Â h (dark red), HD-1Â h (light blue) and HD-6Â h (dark blue). (b) Venn diagrams showing overlap of up- or down-regulated genes in response to the three assayed abiotic stresses at 1Â h and 6Â h: drought (yellow), heat (red) and combined stress (blue)Back to article page