Figure 3.

Transcriptional relationships between tissues in the developing fruit. A, Principal component analysis based on all expressed genes showing three distinct groups of tissues: 0-DPA (dpa) ovaries (orange), embryo and endosperm (light blue), and the rest of tissues from 4-DPA fruit (blue). B, Hierarchical clustering of all differentially expressed genes across the different tissues. Each row of the heat map represents an individual gene, and coloring represents relative expression level. Sample labels are as follows: em, embryo; endo, endosperm; fu, funiculus; ov, ovules; pe, pericarp; pl, placenta; sc, seed coat; and se, septum.