Fig. 7.

Hierarchical cluster analysis of transcript expression profiles at four selected developmental stages. a Cluster analysis was performed using transcriptomic data from shoots, flowers, fruits, and seeds. The log2 of FPKM for each gene was used for hierarchical analysis of the heat map at each of four developmental stages. Red and blue represent pairwise distances among transcripts above or below, respectively, the mean (white) across all four tissues. The heat map represents cluster analysis of 22,641 differentially expressed unigenes according to gene expression level. Expression levels were measured as RPKM from normalized values. b Magnified regions of four clusters of interest (I, II, III, and IV) based on certain patterns of tissue-specific expression showing cluster numbers, with the number of associated unigenes in parentheses. The blue line on each plot represents the mean expression profile for the cluster, the red line represent the baseline