Table 4. Frequencies of L1014F alleles detected in susceptible and resistant mosquitoes of An. arabiensis exposed to DDT, permethrin and deltamethrin.
| Site Type | Insecticide | Phenotype |
No. per genotype
|
Total | Frequency | P- value | OR | ||
|---|---|---|---|---|---|---|---|---|---|
| LL | LF | FF | L1014F | ||||||
| urban | DDT | Dead | 20 | 6 | 0 | 26 | 0.11 | 0.0007 | 7.67 |
| Alive | 0 | 12 | 0 | 12 | 0.50 | ||||
| Permethrin | Dead | 24 | 6 | 0 | 30 | 0.10 | 2.539 ×10-7 | 12.79 | |
| Alive | 0 | 19 | 4 | 23 | 0.59 | ||||
| Delatmethrin | Dead | 21 | 6 | 0 | 27 | 0.11 | 0.023 | 8.00 | |
| Alive | 0 | 4 | 0 | 4 | 0.50 | ||||
| Peri-urban | DDT | Dead | 18 | 11 | 0 | 29 | 0.19 | 1.605 ×10-6 | 8.83 |
| Alive | 0 | 15 | 8 | 23 | 0.67 | ||||
| Permethrin | Dead | 25 | 5 | 0 | 30 | 0.08 | 2.192 ×10-6 | 14.67 | |
| Alive | 0 | 12 | 2 | 14 | 0.57 | ||||
| Delatmethrin | Dead | 18 | 7 | 0 | 25 | 0.14 | 0.012 | 6.14 | |
| Alive | 0 | 7 | 0 | 7 | 0.75 | ||||
L=Leucine (wild- type allele); F=Phenylalanine (kdr allele); P-value from χ2 test of allelic association; OR=odds ratio.
The frequencies were calculated for each insecticide and mosquito status (alive/dead) after exposure.
L1014F represent the kdr frequencies
Genotypic odds ratios (ORs) are shown