Table 3. The genotype and genotype effect of marker and QTL for combining ability and heterosis with multiple alleles at each locus in BCRIL population.
| MM | mm | |||
| Genotype in BCRIL population | MMQQ | MMqq | mmQQ | mmqq |
| Genotype effect in BCRIL population |
|
|
|
|
| Genotype frequency in BCRIL population |
|
|
|
|
MM and mm denote the two different genotype of molecular marker M; Q and q denote two alleles of QTL in BCRIL population, Qi (i = 1∼k) represents the multiple alleles of QTL in tester; r represents the recombinant value between molecular marker M and QTL; μidenotes the overall mean value. a, a
1 and a
k denote the additive effect of different allele; gi and gi′ (1∼k) denote the genotypic value of the homozygote and heterozygote of QTL, respectively. 
, 
.
*When the genotype of QTL is Q 1 Q 1 in tester.
#
When the genotype of QTL is Q k Q k in tester.