Table 2. Variation in percent fertility between lines of D. persimilis at the inversions.

For each cross, a different strain of D. persimilis was backcrossed to D. pseudoobscura bogotana ER white and the percent fertility at each genotype is listed. The p-value listed represents statistical significance of the difference between the percent fertilities of each cross, and was calculated using a G-test (see Methods). "bog": D. pseudoobscura bogotana allele, "per": D. persimilis allele, and "het": heterozygous for both D. pseudoobscura bogotana and D. persimilis alleles.

		BCbog (MSH1993)		BCbog (MSH1)		BCbog (MSH3)		BCbog (SCI)
Line	Genotype	% Fertility	Sample Size	% Fertility	Sample Size	% Fertility	Sample Size	% Fertility	Sample Size	p-value
1	XL=bog, XR=bog, 2=bog	67%	1184	61%	455	67%	246	71%	192	0.054
2	XL=bog, XR=bog, 2=het	18%	1042	21%	381	18%	214	22%	218	0.292
3	XL=bog, XR=per, 2=bog	79%	938	85%	311	86%	160	94%	156	<0.001
4	XL=bog, XR=per, 2=het	82%	1036	94%	293	86%	166	93%	181	<0.001