Evaluation of prediction accuracy of the genomic breeding values of some economic traits in Iranian Holstein cattle using SNP markers and haplotype blocks

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RAJABI MARAND BEHZAD; MORADI SHAHRBABAK HOSEIN; SADEGHI MOSTAFA; ABDOLLAHI ARPANAHI ROSTAM

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Journal: Journal of Animal Production Year:2020 | Volume:21 | Issue:4 Page(s): 419-430

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Title

Evaluation of prediction accuracy of the genomic breeding values of some economic traits in Iranian Holstein cattle using SNP markers and haplotype blocks

Author(s)

RAJABI MARAND BEHZAD | MORADI SHAHRBABAK HOSEIN | SADEGHI MOSTAFA | ABDOLLAHI ARPANAHI ROSTAM | Issue Writer Certificate

Keywords

Genomic SelectionQ1

LD-based haplotype blocksQ1

Linkage DisequilibriumQ1

Prediction AccuracyQ1

SNP MarkersQ1

Abstract

The aim of current study was to evaluate the accuracy of genomic breeding values (GEBV) for two important economical traits of milk yield and somatic cell score using SNP Markers and LD-based haplotype blocks (haploblocks) by two statistical methods of GBULP and Bayes B. The data set consisted of 1654 bulls genotyped with different marker densities. When SNPs were used, the accuracy of breeding values obtained by Bayes B was better than GBLUP. In other words, for milk yield and somatic cell score traits, the Prediction Accuracy of GBLUP was 0. 54 and 0. 44 and by Bayes B was 0. 58 and 0. 44, respectively. For milk yield, the Prediction Accuracy of using haploblocks in both statistical methods was higher than the Prediction Accuracy using SNPs, while for the somatic cell score, this increase was more pronounced when GBLUP was used. However, when Bayes B was used this superiority was only obtained when the r 2 statistic used to build the haploblocks was higher than 0. 2. The results showed that the optimum level of r 2 for building haploblocks depends on the trait type and its heritability. As a result, using r 2 statistic more than 0. 2 for building haploblocks can increase the accuracy of breeding values foe both traits compared to SNP Markers.

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APA: Copy

RAJABI MARAND, BEHZAD, MORADI SHAHRBABAK, HOSEIN, SADEGHI, MOSTAFA, & ABDOLLAHI ARPANAHI, ROSTAM. (2020). Evaluation of prediction accuracy of the genomic breeding values of some economic traits in Iranian Holstein cattle using SNP markers and haplotype blocks. JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE), 21(4 ), 419-430. SID. https://sid.ir/paper/388826/en

Vancouver: Copy

RAJABI MARAND BEHZAD, MORADI SHAHRBABAK HOSEIN, SADEGHI MOSTAFA, ABDOLLAHI ARPANAHI ROSTAM. Evaluation of prediction accuracy of the genomic breeding values of some economic traits in Iranian Holstein cattle using SNP markers and haplotype blocks. JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE)[Internet]. 2020;21(4 ):419-430. Available from: https://sid.ir/paper/388826/en

IEEE: Copy

BEHZAD RAJABI MARAND, HOSEIN MORADI SHAHRBABAK, MOSTAFA SADEGHI, and ROSTAM ABDOLLAHI ARPANAHI, “Evaluation of prediction accuracy of the genomic breeding values of some economic traits in Iranian Holstein cattle using SNP markers and haplotype blocks,” JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE), vol. 21, no. 4 , pp. 419–430, 2020, [Online]. Available: https://sid.ir/paper/388826/en

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