33A1;33B1-33B2
33A1-33A2;33B1-33B2
33A1-33A2;33E
bk1 << Agi << bk2 << prd
Distal breakpoint mapped to the DNA at about -476 to -442 kb (Frei et al., 1985).
Homozygous embryos do not complete head involution or differentiation of the tracheae.
Heterozygosity for this deletion has no effect on the mutant ovarian phenotype of ovoD2.
Struhl.
The Df(2L)esc-P2-0 chromosome may act as a dominant suppressor of telomeric silencing (assayed using the effect of the chromosome on the eye colour phenotype of flies carrying "P{wvar}KR3-2", a stable "brown-red" variant of the P{3'WP-2,wvar}2Lt insertion), but the eye colour phenotype in the presence of Df(2L)esc-P2-0 overlaps the eye colour phenotype in a wild-type background so it cannot be unequivocally demonstrated that the deficiency chromosome uncovers a suppressor of telomeric silencing.
Left limit of break 1 from polytene analysis (FBrf0076124) Right limit of break 1 from inclusion of sala (FBrf0047929) Left limit of break 2 from inclusion of esc (FBrf0047928) Right limit of break 2 from polytene analysis (FBrf0076124)