Patterns of gene expressions on the flavonoid network. ( A ) Sample comparisons on the flavonoid network. All enzymes are expressed as EC numbers in blue rectangles. Green and red arrows refer to enhanced transcript abundances (>2 fold) in leaf and flower, respectively, with each other as reference. The letter in bold following an arrow indicates the sample with the highest expression level. The pigment products are also shown in bold. ( B ) A close-up of expression patterns of known genes on the anthocyanin pathway with normalized expression levels shown in the parentheses. The horizontal cladogram indicates gene expression similarities across samples and the vertical cladogram suggests similarities of samples across genes, as generated by Cluto (version 2.0) using the matrix of Pearson correlation coefficient in a scale of 0.5 to 1.0. Alleles enlisted include CHS-D_mex9 (AF358655), CHI_fl1 (AF028238), F3H_1 (U74081), F3'H_blue (EU032626), DFR-B_fl1 (U90432), ANS_c (EU032612), 3GT_b (EU032615), 3GGT_a (KC794956), Ipmyb1_a (AB232769), bHLH2_bh2b (EU032619), and WDR1_Ipwd1a (AB232777).