Table 1.

The experimental set-up and sample sizes for the genotyping and phenotyping for sex ratio and clutch size. Two hundred and ninety-nine clonal sibships of recombinant males were generated across two sets of crosses. Recombinant F2 males were derived from virgin F1 females, and sibships were created by crossing these F2 males to females from the high and low sex ratio lines. The F3 clonal sibships of these crosses were then phenotyped for single foundress sex ratio and clutch size.

	Recombinant F2 males
Cross	Genotyped	Phenotyped	F3 broods analysed
1	276	156	2057
2	143	143	1657
Total	419	299	3714