Replacement of the endogenous mating regulatory sequence (MRS) of y with attP-loxP-Disc\RFP3xP3.cUa-loxP.
Replacement of the endogenous mating regulatory sequence (MRS) from -292 to -134 of y with attP-loxP-Disc\RFP3xP3.cUa-loxP.
yΔMRS.3xP3::DsRed mutants do not show significant male mating defects, as compared to controls.