Figure 4
Major temporal expression patterns during mouse organogenesis. (A)-(D) Genes that were significantly regulated during organogenesis (between stages TS13-TS27) were clustered and the four major patterns with genes that were gradually up-, down-, arch-down-, and arch-up-regulated are shown, respectively. (E)-(H) GO analysis were carried out on the genes belonging to the 4 clusters shown in A-D and the corresponding biological categories highly enrichments (p < 0.001) in each of the four gene patterns are shown in E-H, respectively. In addition, the tissues where these genes are preferentially expressed are also shown for each pattern (p < 0.001), indicating distinct tissue specificities.