Table 1.
Percentage of nucleotide difference between species (inter-species genetic distance) based on each genetic marker, expressed in percentage
| 12S | 16S | COI | 18S | 28S | ITS2 | ||
|---|---|---|---|---|---|---|---|
| Plagiorchiida | Inter-species (Opisthorchiidae) | 9.0% | 10.0% | 17.0% | 0% | 3.0% | 5.0% |
| O. viverrini/O. lobatus | 1.2% | 1.2% | NA | NA | NA | 0% | |
| Inter-species (Troglotrematidae) | 6.0% | 9.0% | 16.0% | 1.0% | 3.0% | 7.0% | |
| P. pseudoheterotremus/P. heterotremus | 2.9% | 3.9% | NA | 0% | 0.5% | 1.9% | |
| Echinostomida | Inter-species (Fasciolidae) | 13.0% | 9.0% | 14.0% | 1.0% | 4.0% | 13.0% |
| F. gigantica/F. hepatica | 11.5% | 5.9% | 9.2% | 0.3% | 0.5% | 0.4% | |
| Strigeida | Inter-species (Schistosomatidae) | 15.0% | 17.0% | 22.0% | 2.0% | 7.0% | 15.0% |
| S. japonicum/S. mekongi | 5.2% | 8.1% | 15.3% | 0.4% | 2.7% | 5.1% |
NA indicates not applicable due to no sequence available