Photosynthesis and chlorophyll biosynthetic gene expression changes between phyB-9 seedlings and WT (Col0) seedlings using published array data (33), averaged across the diurnal cycle (4-h time point resolution) grouped by GO term. The box-and-whisker plot denotes the 5th, 25th, 50th, 75th, and 95th percentiles of the data, with points denoting outliers. The Wilcoxon rank-sum test was used to assess statistical significance of differences from the null distribution. ***P < 10−30.