Derivative of P{lacW}50C.x4 with six tandem copies of P{lacW} at 50C, with one inverted copy in the array.Does not show significant repression of P-induced dysgenic sterility when P{lacW}50C.x6 females are crossed to P males. Does show significant repression of P-induced dysgenic sterility when females carrying both P{lArB}A171.1F1 and P{lacW}50C.x6 are crossed to P males.
Derivative of P{lacW}50C.x4 with six tandem copies of P{lacW} at 50C, with one inverted copy in the array.Does not show significant repression of P-induced dysgenic sterility when P{lacW}50C.x6 females are crossed to P males. Does show significant repression of P-induced dysgenic sterility when females carrying both P{lArB}A171.1F1 and P{lacW}50C.x6 are crossed to P males.