The model most suitable for the breeding plan depends on the accuracy of the breeding value of selected candidates and available data. Some models avoid the prediction of marker effect by constructing a genome relationship matrix based on SNP genotype. The most prominent method is GBLUP. The G matrix based on marker calculation replaces the matrix based on pedigree calculation, which is faster in calculation and more truly reflects the difference in genetic information between individuals. Due to the interaction between genotype and environment, the presence of incomplete LD, dominance, epistasis and imprinting, and the incomplete correlation between pure race and hybridization performance, it is necessary to select an appropriate genomic model in breeding plans to achieve GEBV prediction.

• Ashley Hutt
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