Table 1. X chromosome nondisjunction in solo females.

	DJb	DJb	Hc	Sd	Sd	nullo
Genotypesa	B♀	B+♂	y+f+ ♀	y+f♀	y f+♀	y B♂	Ne	%NDJf	%Sg	P/Fh
soloZ2-0198/Df	238	230	97	16	9	165	755	55.1	20.5	7.2
soloZ2-3534/Df	203	214	116	9	17	171	730	60.0	18.3	6.1
soloZ2-0338/Df	185	218	96	11	22	176	708	60.2	25.6	6.2
Total solo	626	662	309	36	48	512	2193	58.4	21.4	6.4
solo/+	1210	1031	0	0	0	0	2241	0.0		72.3

^a Dp(1;1)sc^v1, y pn cv m f.y⁺/y females of the indicated chromosome 2 genotypes were crossed with YSX.YL, In(1)EN, y B/Y males (X∧Y/Y). Df = Df(2L)A267 that is deficient for solo.

^bDJ = normal (disjunctional) progeny.

^cH = Matriclinous daughters derived from homolog NDJ.

^dS = Matriclinous daughters derived from sister chromatid NDJ. See Figure S1 for classification of NDJ types.

^eN = total number of progeny.

Since there was no significant difference among the three controls, the numbers were summed for the analysis.

^f%NDJ = 100×2×NDJ flies/(N+NDJ flies) where NDJ flies = (H+S+nullo).

^g%S = 100×S/(S+H).

^hP/F = mean progeny per female.