5D;9D;20;40;51D;56F
1Lt - 5D | 40 - 51D | 9D - 5D | 40 - 2Lt ; 1Rt - 20 | 56F - 51D | 9D - 20 | 56F - 2Rt
5D;9D;20;40;51D;56F
male viable male sterile crossing-over reduced in X, 2R
Roberts, 1964, 1965.
selected on the basis of reduced recombination in one chromosome arm.
Recombination reduced on chromosome 1 and arm 2R.
All limits from polytene analysis (FBrf0021565)