Table 2. Strength of segregation distortion in recombinants of SD-ZI125.

	Genotype	Markers	N	n	±SE	k	±SE	k*	±SE	p-value (k* = 0.5)
1	Sd In(2R)Mal	+ + + and b + +	112	90.3	6.03	0.99	0.00	0.98	0.00	<0.0001
2	Sd In(2R)Mal	+ + px	71	118.8	9.48	0.97	0.01	0.96	0.01	<0.0001
3	Sd In(2R)Mal+	+ c px	19	147.6	14.39	0.54	0.01	0.51	0.01	0.3082
4	Sd+ In(2R)Mal	b + +	24	124.8	10.31	0.68	0.02	0.55	0.03	0.0572
5	Sd+ In(2R)Mal+	+ c px	65	120.4	8.32	0.53	0.01	0.51	0.01	0.3586

Chromosome 2 markers are black (b), curved (c), and plexus (px). N, number of crosses; n, average number of progeny from the crosses; SE, standard error; k, average proportion of progeny inheriting the recombinant SD_r chromosome from SD_r/b c px males; k*, average proportion of progeny inheriting the partial SD_r chromosome from SD_r/b c px males, corrected for viability. p-values reported by a single sample t-test with a null hypothesis of k* = 0.5, as expected for Mendelian segregation. b + + flies were PCR-genotyped for the presence (row 1) or absence (row 4) of Sd-RanGAP.