Figure 1.

Flow chart illustrating the statistical procedure to classify gene expression patterns. A 1 × 5 ANOVA F test was performed for each of the 6464 genes after data filtering. By controlling FDR at 5%, 1234 genes were selected, 1105 of which were clustered into 4 classes based on the timing of their initial significant change in expression level. The fluctuation patterns of genes in each class were examined using planned linear contrasts.