Fig. 2

Classification of transcripts into super-clusters. The set of 7960 differentially expressed transcripts were grouped into 50 clusters using k-means clustering. Clusters were further merged into 6 super-clusters based on the extent of transcript expression rather than the actual expression profiles during the three major developmental phases in Arabidopsis seed maturation (early and middle maturation, and early desiccation). The colors assigned to each super-cluster were used to visualize the nodes (transcripts) in all networks within this manuscript to obtain temporal information on transcript expression in developing Arabidopsis embryos.