Animals show increased tolerance to methylmercury (assayed by increased eclosion of adult flies).
Mutant flies are more resistant to imidacloprid and to thiamethoxam compared to Canton-S flies. Mutant flies are more susceptible to diafenthiuron compared to Canton-S flies.
Both homozygous and heterozygous Cyp6g1DDT-R mutant flies lay an increased number of eggs compared to controls.
Cyp6g1DDT-R/+ flies whose Cyp6g1DDT-R allele is maternally inherited (RS) significantly outperform flies Cyp6g1DDT-R/+ whose Cyp6g1DDT-R allele is paternally inherited (SR) in counts of egg and larval viability at both 20 degrees C and 25 degrees C. However, this advantage disappears during the pupal stage and adult egg production. Both the larval and pupal development of the RS genotype is significantly faster than that of SR at 20 degrees C, however this advantage is obscured during faster development at 25 degrees C.
Cyp6g1DDT-R adults show increased resistance to DDT compared to Canton-S flies. Cyp6g1DDT-R larvae show increased resistance to imidacloprid and to malathion compared to Canton-S larvae.
Cyp6g1DDT-R animals show increased resistance to DDT and imidacloprid relative to Canton-S animals.
Cyp6g1 is a major dominant gene responsible for the phenotype of a line selected for resistance to DDT. Median lethal dose of DDT for Cyp6g1 lines is about 4000 mug/cc of medium; that for sensitive lines is 50-100 mug/cc. Also resistant to BHC (benzene hexachloride) and organophosphorus insecticides such as parathion and malathion. Median lethal dose of parathion is 2 ppm for resistant line and 0.08 ppm for sensitive. Shows maternal effect in that progeny of Cyp6g1/+ female crossed to +/+ male are more resistant that those of reciprocal cross. Larva more resistant than adult. RK3.
Sensitive to phenylthiocarbamide.
Sensitive to phenylthiourea.
Isolated from: a Hikone-R population.
Linkage between DDT resistance and the presence of the accord insertion in the 5' end of the Cyp6g1 gene is complete in naturally occurring strains, but the causal relation between the accord element and overtranscription of the Cyp6g1 gene seen in the resistant strains remains to be proven.