Fig. 4.

Heat map representing the hierarchical clustering of 1,937 genes observed to change in expression in the ONL over the course of photoreceptor injury and regeneration. Uncentered Pearson’s correlation and centroid linkage of genes were used to cluster transcriptional changes. Three clustering differences were observed: genes with expression that increased, genes with expression that decreased, and genes that showed differential expression at the 12-h time point