Figure 3.

Clustered gene expression data for broadly expressed genes. We divided broadly expressed genes into 10 clusters labeled 1B-10B, each cluster separated by a horizontal black bar. From the left, we show normalized eisengrams [43] representing microarray data for 13 one-hour time points (yellow relative high expression, blue relative low expression), followed by annotation matrices split by stage range and color-coded according to organ systems. On the right is a magnified view of clusters 2B and 4B highlighting the diversity of annotations for subsets of genes.