Journal of medical entomology. 2024 Nov 29:tjae140. doi: 10.1093/jme/tjae140 Q12.02025
Seasonal fluctuation of insecticide resistance mutation frequencies in field populations of Anopheles and Culex species in Korea
韩国按蚊和库蚊种群中昆虫icide抗性突变频率的季节波动 翻译改进
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DOI: 10.1093/jme/tjae140 PMID: 39673260
摘要 中英对照阅读
>Anopheles Hyrcanus 组、Culex pipiens 复合群和 Culex tritaeniorhynchus 是在大韩民国(ROK)中常见的传播疟疾原虫Plasmodium vivax 和多种虫媒病毒的媒介蚊种。为了控制这些蚊子,广泛使用了杀虫剂,导致蚊虫对杀虫剂产生抗性。在这项研究中,我们在连续四年内监测了这三个蚊群与杀虫剂抗性相关的三个靶标位点突变(kdr 与拟除虫菊酯抗性相关,ace1 与有机磷抗性相关,rdl 与苯基吡唑抗性相关),以了解不同生态特征区域中抗性的季节动态。在 Anopheles Hyrcanus 组中,在城市-乡村综合体地区(Humphreys 美国陆军基地)(以下简称 Humphreys),kdr 和 ace1 突变频率表现出季节波动,暗示了越冬适应性成本的存在,而 rdl 突变频率则保持在接近饱和的水平。这些模式在农村地区(朝鲜半岛分隔带)不太明显,表明与不同杀虫剂使用模式相关的区域特异性特征。Cx. pipiens 复合群中与 kdr 和 rdl 抗性相关突变频率相对稳定,但根据采集地点有所不同,在 Humphreys 地区 rdl 突变频率较高,在首尔市区的 Yongsan 地区 kdr 突变频率较高,这表明不同地区存在不同的选择压力。总体而言,Cx. tritaeniorhynchus 中抗性突变频率最高,ace1 和 rdl 突变季节性饱和,而 kdr 突变频率随时间变化。我们的研究结果展示了特定物种或群组中杀虫剂抗性的季节性和区域动态模式,表明需要制定有针对性的控制策略,并进一步改进 ROK 中蚊媒疾病的管理。
关键词:
适应成本;杀虫剂抗性;定量测序;抗性突变频率;媒介监测。
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