Table 2.

Sex ratios and number of F1 males with motile and nonmotile sperm in (a) homotypic and (b) heterotypic crosses of Drosophila aldrichi. Statistically significant differences in sex ratio, as measured by Chi‐square tests, are indicated by an *

(a)
Cross		Reps	Progeny		χ2	Fertile males
F	M		F	M		N w/motile sperm	%
BAJ	BAJ	2	201	173	2.1	70/70	100%
OAX	OAX	2	75	85	0.62	70/70	100%
GUR	GUR	2	218	165	6.08	70/70	100%
HTL	HTL	1	175	158	0.86	70/70	100%
TEH	TEH	2	228	209	0.82	70/70	100%
SON	SON	1	126	140	0.737	35/35	100%

(b)
Cross		Reps	Progeny		χ2	Fertile F1 males
F	M		F	M		N w/motile sperm	%
BAJ	GUR	2	488	465	0.55	41/70	59%
BAJ	OAX	2	137	157	1.36	36/70	51%
BAJ	HTL	2	390	377	0.22	51/70	73%
BAJ	TEH	2	159	143	0.84	17/70	24%
BAJ	SON	1	106	104	0.019	7/31	23%
GUR	BAJ	2	393	358	1.6	15/70	21%
GUR	OAX	2	261	234	1.47	70/70	100%
GUR	HTL	2	275	240	2.4	70/70	100%
GUR	TEH	2	306	291	0.37	70/70	100%
GUR	SON	1	193	164	2.35	26/26	100%
OAX	BAJ	2	284	223	7.33*	0/70	0%
OAX	GUR	2	402	431	1.01	70/70	100%
OAX	HTL	2	224	183	4.1*	70/70	100%
OAX	TEH	2	263	276	0.31	70/70	100%
OAX	SON	2	251	223	1.6	35/35	100%
TEH	BAJ	2	245	287	3.31	0/70	0%
TEH	GUR	2	230	235	0.054	70/70	100%
TEH	OAX	2	371	285	11.27*	70/10	100%
TEH	HTL	2	206	188	0.82	70/70	100%
TEH	SON	1	119	68	13.9*	28/28	100%
HTL	BAJ	2	265	283	0.6	2/70	3%
HTL	GUR	2	353	343	0.02	70/70	100%
HTL	OAX	2	321	271	4.22*	70/70	100%
HTL	TEH	2	180	174	0.10	70/70	100%
HTL	SON	1	131	116	0.91	35/35	100%
SON	BAJ	2	280	186	18.96*	0/38	0%
SON	GUR	2	178	167	0.35	35/35	100%
SON	OAX	2	68	54	1.6	35/35	100%
SON	TEH	2	194	173	1.2	35/35	100%
SON	HTL	1	113	113	‐	35/35	100%