Fig. 3

The global gene expression changes during brain growth. a & b The pie graphs of the DNBs and DEGs; a The DNBs of human and chimpanzee. The yellow is the overlap (1 gene) of two groups; b The DEGs of human and chimpanzee. The yellow is the overlap genes (18 genes) of two group DEGs; c MDS plot shows that the first principal axis relative to the individual’s age before 8 years old. Each point represents a sample, i.e., the sample’s global expression analysis by using DNBs (371 human genes and 132 chimpanzee genes); d The DEGs (341 human genes and 396 chimpanzee genes) are used to show the global expression tendency relative to age