Table 4.
Frequency of the F2 Pvmsp1 allelic variants classed following RFLP analysis.
| Variant | Size | Alu I Pattern number | Mnl Pattern number | na | Frequency |
| Aa | A | 1 | 1 | 27 | 0.27 |
| Ab | A | 1 | 2 | 5 | 0.05 |
| Ac | A | 1 | 4 | 3 | 0.03 |
| Ad | A | 1 | 5 | 1 | 0.01 |
| Ae | A | 1 | 6 | 1 | 0.01 |
| Af | A | 1 | 8 | 12 | 0.12 |
| Ag | A | 1 | 9 | 1 | 0.01 |
| Ah | A | 3 | 1 | 4 | 0.04 |
| Ai | A | 3 | 2 | 1 | 0.01 |
| Aj | A | 3 | 4 | 1 | 0.01 |
| Ak | A | 6 | 1 | 3 | 0.03 |
| Al | A | 6 | 3 | 2 | 0.02 |
| Am | A | 6 | 5 | 8 | 0.08 |
| An | A | 6 | 6 | 1 | 0.01 |
| Ao | A | 6 | 8 | 1 | 0.01 |
| Ap | A | 7 | 1 | 2 | 0.02 |
| Aq | A | 7 | 5 | 2 | 0.02 |
| Ar | A | 8 | 1 | 1 | 0.01 |
| As | A | 9 | 1 | 1 | 0.01 |
| At | A | 10 | 8 | 1 | 0.01 |
| Ba | B | 1 | 1 | 2 | 0.02 |
| Bb | B | 1 | 2 | 1 | 0.01 |
| Bc | B | 1 | 3 | 1 | 0.01 |
| Bd | B | 1 | 4 | 1 | 0.01 |
| Be | B | 1 | 8 | 1 | 0.01 |
| Bf | B | 2 | 1 | 1 | 0.01 |
| Bg | B | 3 | 1 | 2 | 0.02 |
| Bh | B | 3 | 2 | 1 | 0.01 |
| Bi | B | 3 | 3 | 1 | 0.01 |
| Bj | B | 3 | 4 | 1 | 0.01 |
| Bk | B | 5 | 1 | 1 | 0.01 |
| Bl | B | 5 | 2 | 1 | 0.01 |
| Bm | B | 6 | 3 | 4 | 0.04 |
| Bn | B | 7 | 3 | 1 | 0.01 |
| Bo | B | 7 | 5 | 2 | 0.02 |
| Bp | B | 10 | 5 | 1 | 0.01 |
a Number of isolates where a particular pattern was observed amongst the 100 Thai isolates analysed