Table 1.
Genotypic frequency in An. arabiensis populations from the four areas in Sudan 2010–2014. A P-value < 0.05 indicates significant departure from HWE
| Area | Year | Sample size | Scored | Failed | Genotype frequency (%) | HWE-test | ||
|---|---|---|---|---|---|---|---|---|
| LL | LF | FF | ||||||
| El Hoosh | 2010 | 950 | 834 | 116 | 519 (62.2) | 288 (34.5) | 27 (3.3) | χ2(1) = 2.93; P > 0.05 |
| 2011 | 1082 | 1072 | 10 | 364 (34) | 561 (52.3) | 147 (13.7) | χ2(1) = 8.94; P < 0.001 | |
| 2012 | 912 | 879 | 33 | 501 (57) | 327 (37.2) | 51 (5.8) | χ2(1) = 0.06; P > 0.05 | |
| 2013 | 912 | 900 | 12 | 561 (62.3) | 302 (33.6) | 37 (4.1) | χ2(1) = 0.21; P > 0.05 | |
| 2014 | 912 | 912 | 0 | 608 (66.7) | 269 (29.5) | 35 (3.8) | χ2(1) = 0.58; P > 0.05 | |
| Hag Abdalla | 2010 | 950 | 906 | 44 | 541 (59.7) | 317 (35) | 48 (5.3) | χ2(1) = 0.03; P > 0.05 |
| 2011 | 975 | 973 | 2 | 364 (37.4) | 518 (53.2) | 91 (9.4) | χ2(1) = 23.59; P < 0.0001 | |
| 2012 | 912 | 883 | 29 | 458 (51.9) | 371 (42) | 54 (6.1) | χ2(1) = 3.48 P > 0.05 | |
| 2013 | 912 | 903 | 9 | 555 (61.5) | 298 (33) | 50 (5.5) | χ2(1) = 1.41 P > 0.05 | |
| 2014 | 912 | 909 | 3 | 625 (68.8) | 258 (28.3) | 26 (2.9) | χ2(1) = 0.01; P > 0.05 | |
| Galabat | 2010 | 644 | 626 | 18 | 191 (30.5) | 248 (39.6) | 187 (29.9) | χ2(1) = 26.98; P < 0.0001 |
| 2011 | 853 | 848 | 5 | 65 (7.7) | 431 (50.8) | 352 (41.5) | χ2(1) = 18.57; P < 0.0001 | |
| 2012 | 624 | 608 | 16 | 116 (19.1) | 249 (40.9) | 243 (40) | χ2(1) = 12.52; P < 0.001 | |
| 2013 | 624 | 618 | 6 | 151 (24.4) | 316 (51.2) | 151 (24.4) | χ2(1) = 0.31; P > 0.05 | |
| 2014 | 624 | 621 | 3 | 234 (37.7) | 305 (49.1) | 82 (13.2) | χ2(1) = 1.25; P > 0.05 | |
| New Halfa | 2010 | 950 | 921 | 29 | 332 (36) | 443 (48.1) | 146 (15.9) | χ2(1) = 0.01; P > 0.05 |
| 2011 | 747 | 745 | 2 | 138 (18.5) | 391 (52.5) | 216 (29) | χ2(1) = 2.79; P > 0.05 | |
| 2012 | 912 | 912 | 0 | 272 (29.8) | 438 (48) | 202 (22.1) | χ2(1) = 1.04; P > 0.05 | |
| 2013 | 912 | 909 | 3 | 368 (40.5) | 431 (47.4) | 110 (12.1) | χ2(1) = 0.89; P > 0.05 | |
| 2014 | 912 | 912 | 0 | 413 (45.3) | 454 (49.8) | 45 (4.9) | χ2(1) = 32.66; P < 0.0001 | |
Abbreviations: LL homozygous susceptible; LF heterozygous; FF homozygous resistant; HWE Hardy-Weinberg expectation