Covariance between relatives in multibreed populations: additive model.
...As an alternative to CCPS, Dekkers  proposed to select purebreds for commercial crossbred performance using genomic selection....
...In addition, using CCPS increases the rate of inbreeding  and makes it difficult to accommodate non-additive gene action ....
...Genomic selection for crossbred performance has three main advantages over CCPS: 1) it does not require pedigree information on crossbreds, 2) after estimates of SNP effects are obtained using genotype and phenotype data, prediction can continue for several generations without additional phenotypes , 3) it reduces the rate of inbreeding , and 4) it makes accommodating nonadditive gene action easier ....
...In order to avoid these problems, it has been proposed to select purebred relatives based on crossbred performance using combined crossbred and purebred selection or CCPS [2-6]....
Cites background or methods from "Covariance between relatives in mul..."
...The additional variance in the F2 cross compared to the variance in the F1 cross is termed segregation variance (Lande 1981; Lo et al. 1993)....
...This is typically Metafounders in Pedigrees 461 ignored in a classical framework, although methods exist (Lo et al. 1993; Garcia-Cortes and Toro 2006)....