TABLE 2.
Base composition (%) at fourfold degenerate sites in protein-coding genes and in noncoding regions of the mitochondrial genome
| Species | Protein-coding genes (no. of sites) | A | T | G | C |
|---|---|---|---|---|---|
| C. incerta | Standarda (1222) | 27.5 | 52.9 | 3.7 | 15.9 |
| rtl (155) | 25.2 | 42.6 | 14.2 | 18.1 | |
| C. reinhardtii | Standarda (1290) | 26.3 | 52.3 | 2.2 | 19.1 |
| rtl (160) | 24.4 | 40 | 15 | 20.6 | |
| Species | Noncoding regions (no. of sites) | A | T | G | C |
| C. incerta | Intron cob (1078) | 28.9 | 29.9 | 20.3 | 20.9 |
| Intron cox1 (1035) | 27.2 | 29.2 | 23.8 | 19.8 | |
| C. reinhardtii | Intergenicb (916) | 29.1 | 29.7 | 18.1 | 23.1 |
| Intergenicb (1214) | 28.6 | 30.4 | 19.9 | 21.1 |
a
Concatenated sequences.
b
Concatenated sequences not including the region between nad5 and cox1 where a switch in the template strands occurs.