4D7-4E1;11F2-11F4
4D7-4E1;11F2-11F4
rb << bk1 << cv << wy << bk2 << g
The 5' (distal) end of this breakpoint corresponds to X:4 ,897,260 and the 3' (proximal) end corresponds to X:4 ,897,262 (release 6 coordinates). This breakpoint is associated with a small (3 bp) duplication. (FlyBase curator comment: coordinates updated from release 5 coordinates of X:4 ,791,293..4,791,295 given in paper.)
Measures of recombination vary from 5.5% (Grell, 1962, Genetics 47: 1737-54) to about 15% (Sturtevant and Beadle, 1936); secondary exceptions from 33% (Grell, 1962) to 44% (Sturtevant and Beadle, 1936).
Muller, Nov. 1926.
Used as a balancer either with markers y Hw m2 g4 or y w lzs with Hw and lzs sterilizing homozygous female.
The middle third of the X euchromatin is inverted.
All limits from polytene analysis (FBrf0089934)