Determination of QTL genotypes of founder animals by the t-test or marker assisted segregation analysis in three experimental populations.

aWE, White Duroc × Erhualian F2 intercross; SU, Sutai pigs; ET, Erhualian × Tongcheng F2 intercross.bLeft or right chromosomes are defined arbitrarily for each sire. For left and right chromosomes of F0 animals in the two F2 intercross populations, q chromosomes are judged by the Mendelian inheritance and their significant difference from the average value of deduced Q chromosomes in F1 sires, or vice versa. Information is not available (ns) for some right chromosomes as no or few F2 animals inherit these chromosomes. Some F0 animals have identical haplotypes corresponding to Q or q chromosomes of F1 sires. Average values are shown for these chromosomes.cThe Z-test on 9 F1 sires in the White Duroc × Erhualian F2 intercross has been reported in our previous study [10].