Exposure of mus207A1 mutant larvae to DDVP for 48 hours results in a significant increase in the migration of DNA in midgut cells at 0.15, 1.5 and 15ng/ml concentrations of DDVP as compared to controls.
mus207A1 mutants have an increased frequency of single-strand annealing repair (SSA) compared to controls in a P{wIw.FRT} hemizygous assay to study DNA double-stranded break repair when assayed at 38oC, but a similar similar SSA frequency to controls when assayed at 32oC.
Larval survival hypersensitive to exposure to methyl methanesulfonate, nitrogen mustard and ultraviolet light; weakly sensitive to formaldehyde and X rays. Hypermutability to alkylating agents; defective in alkylation repair pathway. Fecundity of homozygous females normal.
Homozygous larvae are sensitive to UV light, nitrogen mustard and methyl methanesulfonate, but not to X rays or formaldehyde.
Recovered as a methyl methanesulfonate sensitive mutant.