@article{oai:rakuno.repo.nii.ac.jp:02000226,
 author = {Osawa, T. and Baba, T. and Masuda, Y. and Kawahara, T. and Goto, Y.},
 journal = {Proceedings of the 12th World Congress of Genetics Applied to Livestock Production},
 month = {},
 note = {journal article, This study proposed an alternative method to consider a reference population in the mixed model equations (MME) of single-step SNP BLUP (ssSNP-BLUP) model without separating genomic terms to estimate SNP effects. We adopted the preconditioned biconjugate gradient stabilized method to solve MME because this model was a nonsymmetric linear system. Overall conformation score in the first lactation for Japanese Holsteins was used to compare the original and modified ssSNP-BLUP models. Genotyped animals included in the dataset were 37,197 cows, 5,352 sires, 3,973 young bulls and 88,058 heifers. Three reference populations were defined as sires, cows and both. Our method can consider the reference population in the ssSNP-BLUP without separating genomic terms. The contribution of young animals to genomic predictions was small, and predictions varied when only sires or cows were considered in a reference population. On the other hand, considering the reference population may reduce the overestimation of the predictions.},
 pages = {1306--1309},
 title = {An alternative method to consider a reference population in Single-Step SNP BLUP model without separating genomic terms},
 year = {2022}
}