Transposition of jockey and 1.8kb of the sc gene (which contains an enhancer responsible for the development of anterior notopleural bristles) from scD1 into the gypsy element at the y locus. The duplicated enhancer in the y locus is not insulated by the su(Hw) binding region and can interact with the sc promoter in spite of the presence of two other promoters between them.
Anterior notopleural bristle formation is restored to wild type.
Revertant.
sc+2MC, y+2MC has anterior notopleural bristle phenotype, suppressible | partially by zop6
sc+2MC, y+2MC has anterior notopleural bristle phenotype, suppressible | partially by e(y)21
sc+2MC, y+2MC has anterior notopleural bristle phenotype, non-suppressible by Taf91
sc+2MC, y+2MC has anterior notopleural bristle phenotype, non-suppressible by e(y)34
sc+2MC, y+2MC has anterior notopleural bristle phenotype