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 y2 locus. The fragment containing the jockey element and 1.8kb sc fragment is therefore duplicated - the original copy being present at the sc locus and the transposed copy being present in y. 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.
sc2#+9, y2#+9 has anterior notopleural bristle phenotype, suppressible | partially by zop6
sc2#+9, y2#+9 has anterior notopleural bristle phenotype, suppressible | partially by e(y)21
sc2#+9, y2#+9 has anterior notopleural bristle phenotype, non-suppressible by Taf91
sc2#+9, y2#+9 has anterior notopleural bristle phenotype, non-suppressible by e(y)34
sc2#+9, y2#+9 has anterior notopleural bristle phenotype