Inheritance of pyriproxyfen resistance in the whitefly, Bemisia tabaci (Q biotype).

摘要: The inheritance of resistance to pyriproxyfen, an insect growth regulator (a juvenoid, with ovicidal and larvicidal activities), was studied in the whitefly Bemisia tabaci (Gennadius). Two parental strains, both belonging Q biotype, were assayed pyriproxyfen; a susceptible strain (ALM-1) originating from Spain pyriproxyfen-resistant one (Pyri-R) Israel. ratio between two strains approximately 7,000-fold. Concentration-mortality lines for F(1) heterozygous females reciprocal crosses (SS female symbol X R male RR S ) derived by statistical modelling proved intermediate those parents. pooled degree dominance +0.26, indicating that incompletely or partially dominant. Mortality curves F(2) males produced virgin displayed broad plateau at 50% mortality, pyriproxyfen B. is conferred primarily mutant allele single locus. role arrhenotoky influencing mode resistance, its selection field populations, discussed.