Imprecise excision of the progenitor insertion, resulting in a 876bp deletion that eliminates the translational initiation codon, the first exon and part of the first intron of CG8677.
876 bp deletion resulting from the imprecise excision of P{SUPor-P}CG8677KG02636. The deletion extends upstream from the insertion site, removing part of the first intron, the first exon (which contains the ATG), and upstream sequences.
Homozygotes are viable, fertile and phenotypically normal, with only approximately 10% of the homozygotes dying in the pupal stage (these animals have a melanotic tumor phenotype).
The gross appearance of the polytene chromosomes appears normal in homozygous larvae and there is no change in the nucleosome repeat length of bulk chromatin isolated from mutant embryos compared to wild type.
The position effect variegation at the w locus caused by In(1)wm4h is significantly suppressed by CG86773602/+ and more strongly suppressed by CG86773602/CG86773602.
CG86773602 has suppressor of variegation | dominant phenotype, enhanceable by His2Av[+]/His2Av810
CG86773602 has suppressor of variegation | dominant phenotype, enhanceable by reptunspecified/rept[+]
CG8677[+]/CG86773602 is an enhancer of suppressor of variegation | dominant phenotype of His2Av810
CG8677[+]/CG86773602 is an enhancer of suppressor of variegation | dominant phenotype of reptunspecified
CG86773602/+ ; His2Av810/+ double heterozygotes show a synergistic effect on the position effect variegation at the w locus caused by In(1)wm4h, showing strong suppression of position effect variegation.
CG86773602/+ ; reptunspecified/+ double heterozygotes show a synergistic effect on the position effect variegation at the w locus caused by In(1)wm4h, showing strong suppression of position effect variegation.