The genotype and genotype effect of marker and QTL for combining ability and heterosis with two alleles at each locus in BCRIL population.

<p><i>MM</i> and <i>mm</i> denote the two genotype of molecular marker M; <i>QQ</i>, <i>Qq</i> and <i>qq</i> denote the three genotype of QTL; <i>r</i> represents the recombinant probability between molecular marker M and QTL; <i>μ</i>denote the overall mean value. <i>a</i> and <i>d</i> denote the additive effect and dominant effect, respectively; <i>q</i> and <i>p</i> denote the genotype frequency of QTL <i>QQ</i> and <i>qq</i> in tester, respectively (<i>p+q</i> = 1).</p><p>*When the genotype of QTL in tester is <i>QQ</i>,, and its genotype frequency is <i>q.</i></p>#<p>When the genotype of QTL in tester is <i>qq</i>,, and its genotype frequency is <i>p.</i></p>§<p>When the genotype of QTL in tester is a mixture of <i>QQ</i> and <i>qq</i>, the genotype frequency of <i>QQ</i> and <i>qq</i> are <i>q</i> and <i>p</i>, respectively.