Number of females and males mating assortatively in reciprocal behavioural assays among the RbMM and RbSS recombinants strains.

Recombinant females (X-island genotypes MM or SS) were given a choice between recombinant males with X-chromosome speciation island matching their own or not (top half of table, see methods). The reciprocal experiments were also conducted with recombinant males (X-island genotype M or S) choosing recombinant females (bottom half of table). The number of replicates, mating combinations, numbers and percentages (in brackets) of mating, and level of significance (Chi-square Likelihood-ratios) are indicated. † For each mating combinations, 2 replicates were conducted using 5-day-old mosquitoes reared from independent mosquito cohorts. Number of females and males mating assortatively in reciprocal behavioural assays among the RbMM and RbSS recombinants strains.