Associations between Variation in X Chromosome Male Reproductive Genes and Sperm Competitive Ability in Drosophila melanogaster

Table 2

Reproductive phenotype statistics. P1′ is the proportion of progeny sired by the first male in defense crosses (arcsine transformed). P2′ is the proportion of progeny sired by the second male in offense crosses (arcsine transformed). Summary of the reproductive phenotypes statistics using linear models, a total of 57,919 progeny were counted for the defense experiment, and 92,467 progeny were counted for the offense experiment.

Phenotype	Mean across lines	Range of line means	D.F.	Test statistic	P value
Fecundity-D	80.69	52–103.583	56	𝐹=0.98	.5265
P1′	0.8666	0.53088–1.5708	56	𝐹=2.25	1.38 × 10^-6
Fecundity-O	110.79	76.125–153.75	56	𝐹=2.53	1.98 × 10^-8
P2′	1.01	0.27237–1.49932	56	𝐹=7.12	2.20 × 10^-16