Figure 2

Clustered view of gene co-occurrences among a collection of 8 groups of selected genes. Of the 150 genes, the relative scores of co-occurrences were calculated and clustered using hierarchical clustering. A co-occurrence was only taken into account when at least two articles mention the gene-gene pair. Using this criterion, 45 genes did not co-publish with any of the other 149 genes. To which group (Table 2) a gene belongs to is indicated in the right part of the figure. Image contrast in TreeView was set at 50. Scaled (1–100) relative scores are represented in a red spectrum with bright red being the highest score. A relative score of zero or no score are in black.