摘要
目的 对实验室选育的嗜人按蚊抗溴氰菊酯品系进行抗性遗传特性分析。方法 采用LC-P线法研究嗜人按蚊对溴氰菊酯抗性的遗传方式。结果 正交和反交F_1代的抗性系数分别为15.19、16.66,接近1∶1。D-0.651,F_1代的LC-P线靠近抗性亲本一方。BC代在死亡率50%处与F_2代死亡率在25%—75%处未出现明显平坡,BC和F_2的实际死亡率和理论死亡率曲线的适合性检验差异具有显著性,P均<0.01。结论 嗜人按蚊对溴氰菊酯的抗性是由常染色体遗传所致的多基因遗传,抗性遗传表现为不完全显性。
Objective To analyze the genetic characteristics of deltamethrin resistant strain of Anopheles anthropophagus. Methods The study was performed with LC-P curve method for the genetic mode of deltamethrin resistant of An. anthropophagus. Results The resistant coefficient of F_1 generation from cross and reciprocal cross were 15.19 and 16. 66 respectively. The LC-P curve of F_1 generation got near to that of resistant parents (D=0.651). There were no obvious platforms in 50% mortality of BC generation and 25% - 75% mortality of F_2 generation.There were significant differences between the determining curve and theoretical cure in both BC and F_2 generations, P<0.01.Conclusion Deltamethrin resistance of An. anthropophagus is by two or more autosomal genes.The inherited resistant is shown as incompletely dominant.
出处
《中国血吸虫病防治杂志》
CAS
CSCD
2003年第5期367-369,共3页
Chinese Journal of Schistosomiasis Control
基金
江苏省科技厅科技储备项目(1999)
关键词
嗜人按蚊
溴氰菊酯抗性
不完全显性
多基因遗传
Anopheles anthropophagus
Deltamethrin resistance
Incomplete dominance
Multiple gene inheritance
