Animals with the duplication are WT. Animals which have lost the duplications are DpyUncNcl. Maintain by picking WT. Males containing mnDp84 are not fertile.
Animals with mnDp89 are WT. Animals which have lost mnDp89 are Unc and Ncl. mnDp89 not transmitted by males. mnDp89 formed by fusing mnDp14 and mnDp84.