Fig. 1
Frequency distribution (A), principal component analysis (PCA) plot (B), and heatmap hierarchical clustering plot (C) of antioxidant properties in different pericarp colors. Three clusters are shown. The color of the top bar represents the pericarp color, and the number at the bottom indicates the accession number in this population (list is provided in Supplementary Table S1). Green, white rice cultivar; purple, black rice cultivar; and red, red rice cultivar. Number above box plot indicate p-value of t-test for each pairwise differences in antioxidants between pigmentation groups.
