From: Maximizing crossbred performance through purebred genomic selection
Population structure | Â |
---|---|
Step 1: Historical generations (HG) | Â |
Number of generations(size) - phase 1 | 1000 (2000) |
Number of generations(size) - phase 2 | 1000 (gradual decrease) |
Selection and mating | Random |
Step 2: Breed formation (BF) | Â |
Number of founder males from HG | 50 |
Number of founder females from HG | 50 |
Number of generations | 100 |
Number of offspring per dam | 5 |
Selection and mating | Random |
Step 3*: Expanded generations (EG) | Â |
Number of founder males from BF | 100 |
Number of founder females from BF | 100 |
Number of generations | 8 |
Number of offspring per dam | 10 |
Selection and mating | Random |
Step 4: Purebred A0 and B0 | Â |
Number of founder males/females from EG breed A | 100/200 |
Number of founder males/females from EG breed B | 100/200 |
Number of offspring per dam | 5 |
Mating system | Random |
Selection and mating | Random |
Step 5: Purebred A and B | Â |
Number of males/females from A0 | 100/200 |
Number of males/females from B0 | 100/200 |
Number of offspring per dam | 5 |
Selection | GEBV |
Mating system | Random |
Heritability of the trait | 0.3 |
Phenotypic variance | 1 |
Genome | Â |
Number of chromosomes | 1 |
Number of SNPs | 1000 |
SNP distribution | Random |
Number of QTL | 100 |
QTL distribution | Random |
MAF of SNPs | 0.05 |
MAF of QTL | 0.05 |
Additive allelic effects for SNPs | Neutral |
Additive allelic effects for QTL | Gamma |
Rate of recurrent mutation | 2.5 × 10−4 |