Dynamically expressed meristem genes modulate architectural traits. (A) Significance plot illustrating that natural variation underlying plant architectural traits is significantly enriched specifically near PC1-correlated TFs, dynamically expressed genes, and meristem-specific genes. In contrast, architectural TASs are strongly depleted near constitutively expressed genes. Dashed line, significance threshold (P = 0.05) based on χ2 test with Yates’ continuity correction. Input gene numbers are given in parentheses. (Mer) Meristem. (B) Enrichments of TASs near individual TF families either positively (black) or negatively correlated (red) to PC1 shows different TF families shaping distinct morphological features. (C) Enrichments of TASs influencing individual architectural traits near PC1-correlated TFs and genes marking the PZ and OC. TASs for most architectural traits are depleted near CZ-specific genes.
