Figure 2.

Transcriptome similarity among 17 brain tissues based on expression divergence at P value = 0.01. Tissues being compared are indicated on the Y-axis, and expression divergence (ED_P) of clusters of tissues is plotted on the X-axis. At each node in the dendrogram, the number of genes shared between libraries in the tissue cluster is indicated. A threshold of 50% of maximum ED_P was chosen for coloring of branch lines in the dendrogram.