Table 3.

Abnormal spermatids produced by mutant males carrying different allelic combination of asp

% spermatids with indicated numbers of nuclei
GenotypeNumber of spermatids analysed1 nucleus/cell2 nuclei/cell4 nuclei/cell
Oregon R181399.8 (0)0.2 (0)0 (0)
asp1 137555.7 (12.8)32.1 (14.4)12.2 (3.9)
aspdd4 129750.3 (16.9)35.7 (14.5)14.0 (5.1)
asp1/aspdd4 117648.8 (18.1)36.4 (15.1)14.7 (6.0)
asp1/Df(3R)Hδγ11 103354.7 (13.9)33.8 (12.2)11.5 (3.9)
aspdd4/Df(3R)Hδγ1 111252.2 (14.5)34.5 (13.9)13.3 (4.7)
Variation in the nuclear size of spermatids is indicative of non-disjunction and has been previously described. The presence of multiple nuceli is an indication of the failure of cytokinesis.