Imprecise excision of the P{GawB} element. Scer\GAL4 sequences are not present. w sequences are still present but the size of the w fragment is altered compared to prosV1. A 2.9kb BamHI-PstI fragment ("pBSK") from the 3' end of the element appears to be intact. Surrounding genomic sequences are unaffected.
The median lifespan for prosV3 animals (the age after egg laying at which 50% of homozygotes have died) is 10.34 days at 25oC.
Homozygous second instar larvae show normal or nearly normal responses to 0.1M sucrose and to 0.3M NaCl in a taste response assay.
The courtship index of heterozygous males towards decapitated Canton-S males is significantly higher than that of wild-type males towards decapitated Canton-S males. The courtship index of heterozygous males towards decapitated Canton-S males is significantly lower than that of heterozygous prosV1 males towards decapitated Canton-S males. Homozygotes show high mortality during the first 2 days of adult life. Homozygous males are infertile, probably due to weakness.