Figure 3.

Fold enrichments of HI genes in different evolutionary ages. The horizontal axis represents evolutionary age and the vertical axis represents the fold enrichment. Values are sorted by evolutionary branch. Branch 0 indicates the oldest genes and branches 8 ~ 12 indicate primate-specific young genes. Significantly enriched branches are labelled with asterisks (*: P < 0.05; **: P < 0.01; ***: P < 0.001).

Zhou et al. BMC Genomics 2013 14:67   doi:10.1186/1471-2164-14-67
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