Figure 10

Microarray-based expression profile of histone chaperones in Arabidopsis and rice under various abiotic stress conditions. Heat maps show the expression pattern of histone chaperones from Arabidopsis (A) and rice (B) under various abiotic stress conditions namely cold, drought, heat and salinity as obtained via expression analysis using microarray data. Color bars at the bottom of each of the heat maps show the corresponding scale for log₂ fold change in expression, with green representing downregulation and red signifying upregulation. Heat maps were generated using hierarchical clustering for which weighted average linkage method and Pearson correlation distance metric were used. Genes which showed more than two-fold up- or down-regulation {log₂(fold change) ≥ 1, or log₂(fold change) ≤ -1, respectively; Student’s t-test p < 0.05} were considered to be showing significant differential regulation of expression in the respective conditions.