Figure 4. Heat map using normalized counts which show patterns
of expression in hsp genes for the heat-tolerant B.
calyciflorus s.s. (A), and the heat-sensitive B. fernandoi (B).
Blue color (C) represents control treatment, orange color (M) represents
mild heat treatment, and red color (H) represents high heat treatment.
The symbols indicate the pairwise comparison in which differential gene
expression (DE) was significant (p<0.05). The color key
represents a spectrum of lowest gene expression (blue) to highest gene
expression (red).