3C2;20F
3C2;20D
bk1 << su(f) << bk2
Breakpoint reported to map between R5 cordinates X:2665094 and X:2666052 .
Left (3C1-2) breakpoint is at -21 kb of the restriction map of the w locus (0 point at site of the copia insertion in wa); right (20F) breakpoint is at a mobile element (Tartof et al., 1984).
Suppresses the In(2R)bwVDe2 pigmentation phenotype.
The position effect variegation of Sb caused by T(2;3)SbV is suppressed by In(1)wm51b. The T(2;3)SbV chromosome has no clear effect on the variegation of w caused by In(1)wm51b. In(2R)bwVDe2 and In(1)wm51b in combination show dominant suppression of variegation of one or both of w and bw, as measured by eye pigment levels.
In(1)wm51b/0 males show a marked reduction in viability.
Eyes have a "peppered" phenotype - flecks of dark brown pigmented ommatidia are scattered throughout the wild type surface of the eye.
Baker, 19th Feb. 1951.
Proximal breakpoint defines the proximal boundary of the bb locus.
Proximal breakpoint is approximate. The distal breakpoint is to the left of w and the proximal breakpoint is to the right of bb.
Limits of break 1 from polytene analysis (FBrf0018623) Limits of break 2 from polytene analysis (citation unavailable)