Comparison of GBLUP and WGBLUP in genomic selection for beef cattle under different LD patterns and mixed multi-population scenarios: a simulation study.

However, in structured populations such as multi-species or mixed populations, there may be significant differences in marker allele frequencies between subpopulations.

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The results showed that the prediction accuracy of both methods showed an increasing trend as the reference population size increased, but the prediction accuracy of WGBLUP was significantly higher than that of GBLUP at all reference population sizes. among them, the prediction accuracy of GBLUP showed a relatively gentle increasing trend with the increase of reference population size, especially when the reference population size increased from 1000 to 3000, its The prediction accuracy increased from 0.148 to 0.217 to 0.164–0.247, which is a small increase.

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