Yawson A E, McCall P J, Wilson M D, Donnelly M J
Vector Research Group, Liverpool School of Tropical Medicine, Liverpool, UK.
Med Vet Entomol. 2004 Dec;18(4):372-7. doi: 10.1111/j.0269-283X.2004.00519.x.
The Ghanaian National Malaria Control Programme has prioritized insecticide-treated materials as a key strategy for malaria control. We report on a survey of the distribution of the molecular forms of Anopheles gambiae Giles (Diptera: Culicidae) and insecticide resistance (the kdr mutation), carried out by sampling mosquitoes from 11 locations in Ghana and one additional site in Burkina Faso. The molecular M and S forms of An. gambiae were found to occur in sympatry in southern Ghana. The S form predominated throughout its distribution in the coastal savannah, except at one location in the strand and mangrove zone where rice was cultivated. The M form was the only form collected in northern Ghana and was the predominant form (97.5%) in Burkina Faso. No M/S hybrids were detected. The kdr mutation was observed at very high frequencies (98-100%) within the S form but reached a maximum of only 3.38% in the M form in one population at an irrigation scheme in the Ghanaian coastal savannah zone.
加纳国家疟疾控制规划已将经杀虫剂处理的材料作为疟疾控制的关键战略。我们报告了一项关于冈比亚按蚊（双翅目：蚊科）分子形式分布及杀虫剂抗性（kdr突变）的调查，该调查通过对来自加纳11个地点和布基纳法索另一个地点的蚊子进行采样来开展。在加纳南部发现冈比亚按蚊的分子M型和S型同域分布。S型在沿海大草原的整个分布区域占主导，除了一个种植水稻的滨海地带和红树林区的地点。M型是在加纳北部采集到的唯一类型，并且是布基纳法索的主要类型（97.5%）。未检测到M/S杂交种。在S型中，kdr突变的频率非常高（98 - 100%），但在加纳沿海大草原区一个灌溉区的一个种群中，M型中kdr突变的频率最高仅为3.38%。
