摘要
目的评估白纹伊蚊对溴氰菊酯的抗性风险,预测抗性发展速率,为科学合理用药提供依据。方法采用群体汰选法获得抗性品系,采用数量遗传学的域性状分析法估算抗性现实遗传力（h2）并预测不同选择压力下抗性发展的速率。结果经过17代的室内选育,白纹伊蚊对溴氰菊酯的抗性达到36.7倍;白纹伊蚊对溴氰菊酯的抗性h2为0.125 7,抗性风险较大;根据抗性发展规律,得出3个不同阶段的h2分别为0.116 9（F0~F5）、0.154 0（（F5~F11）、0.011 4（F11~F17）,根据不同阶段的h2值预测不同选择压力下（死亡率50%、60%、70%、80%、90%）,抗性上升10倍所需的代数分别为7.3~105.2、6.4~92.6、6.4~92.6、5~72、3.3~47.6、2.4~35.2代。结论白纹伊蚊对溴氰菊酯抗性风险大,应科学合理用药。
Objective To assess the resistance risk of Ae. Albopictus to deltamethrin and provide reference for the proper applying insecticides. Methods The resistance strain was developed by group selection, and the realized heritability （ h2 ） of Ae. Albopictus resistance to deltamethrin was estimated based on Tabashnik＇ s method. Results The resistance of Ae. Albopictus to deltamethrin had increased by 36. 7 folds after 17 generation of selection, and the h2 of Ae. Albopictus to deltamethrin was 0. 125 7, indicating a relatively risk of resistance development. According to the pattern of resistance development in Ae. Albopictus, the h2 value in three resistance development stage were 0. 116 9 （ F0 - F5 ） ,0. 154 0 （ F5 - Fit ） and 0. 011 4 （ FH - F17 ） respectively. According to the h2 value in different stage, it was predicted that Ae. Albopictus would require 7.3 - 105.2,6.4 - 92.6,6.4 - 92.6,5 - 72,3.3 - 47.6,2.4 - 35.2 to obtain 10- fold resistance to deltamethrin under different selection pressure such as 50% ,60% ,70%, 80% and 90% mortality rates. Conclusion The results suggest that Ae. Albopictus is capable to develop resistance to deltamethrin,which must be proper applied in the field.
出处
《中华卫生杀虫药械》
CAS
2015年第2期125-127,130,共4页
Chinese Journal of Hygienic Insecticides and Equipments
基金
上海市自然科学基金项目(编号:12ZR1426600)
关键词
白纹伊蚊
溴氰菊酯
现实遗传力
抗性风险评估
Aedes albopictus
deltamethrin
realized heritability
resistance risk assessment
