Start CGIs and Expression at Early Embryo Stage
| Tissue distribution | Early embryo genes? | No. of genes | Genes with a start CGI (%) | χ2 Pvalue |
| 0–1 | yes | 9 | 100.00 | 0.026* |
| no | 88 | 45.45 | ||
| 2–5 | yes | 15 | 80.00 | 0.056* |
| no | 98 | 53.06 | ||
| 6–16 | yes | 48 | 95.83 | 0.0014* |
| no | 76 | 73.68 | ||
| 17–24 | yes | 30 | 93.33 | 0.033* |
| no | 3 | 33.33 | ||
| Total | yes | 102 | 93.14 | |
| no | 265 | 56.23 |
[i] The number and percentage of genes with a start CGI are indicated according to their overall tissue breadth of expression and to their expression at early embryo stage. The table indicates the Pvalue for the comparison of start CGI frequencies between the genes detected and not detected in early embryo.