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. 2017 Dec 11;12(12):e0189271. doi: 10.1371/journal.pone.0189271

Fig 4. Correlation of sample replicates and hierarchical clustering analysis of gene expression levels in each sample (0, 24, 48, and 72 h) under osmotic stress treatment.

Fig 4

A) Sample relatedness is plotted using the first two principal component (PCs) showing the variability between replicates and different treatments. Non-stressed leaf and root samples are in blue shade background. In dark-green and in red background colors are the samples corresponding to stressed leaves and roots (24, 48, 72 h ASI), respectively. C = control, D = Drought. B) Correlation dendrogram of gene expression in all samples. Correlation r values are coded into key colors where green indicates lower r values; reds indicates higher r above the mean. Blue squares in the nodes represent non-stressed samples, green stars represent leaf stressed samples, and the red stars represent root stressed samples. L = leaf, R = root, L0 and R0 = non-stress treatment, L1 and R1 = 24 h treatment ASI, L2 and R2 = 48 h treatment ASI, L3 and R3 = 72 h treatment ASI. * = biological replicate.