Evolutionary pressure analysis on single dcNUMT genes for mammals and birds
| Evolutionary pressure on dcNUMT gene | No. of genes in mammals | No. of genes in birds |
|---|---|---|
| Purifying selection (dN/dS < 1) | 1337 | 377 |
| Neutral evolution (dN/dS = 1) | 2211 | 1865 |
| Positive selection (dN/dS > 1) | 1 | 4 |
[i] Shown are the numbers of genes that show branch-specific signatures of purifying selection, neutral evolution, or positive selection, respectively.