P{GSV6} insertion within the 5' untranslated region.
Homozygous and Pp1α-96AGS11179/Df(3R)crb87-5 flies have no obvious mutant phenotype.
Pp1α-96AGS11179/Df(3R)crb87-5, flw1 has lethal phenotype, suppressible by zip1
Pp1α-96AGS11179/Pp1α-96A[+], flw1 has viable phenotype
Pp1α-96AGS11179/Df(3R)crb87-5, flw1 has lethal phenotype
Separable from: a secondary lethal mutation on the same chromosome.