Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/19028
Title: Accuracy of Genomic Prediction for Merino Wool Traits Using High-Density Marker Genotypes
Contributor(s): Moghaddar, Nasiroddin  (author); Swan, Andrew  (author); Van Der Werf, Julius H  (author)orcid 
Publication Date: 2015
Open Access: Yes
Handle Link: https://hdl.handle.net/1959.11/19028
Open Access Link: http://www.aaabg.org/aaabghome/AAABG21papers/Moghaddar21165.pdfOpen Access Link
Abstract: High-density (HD) marker genotypes could increase the accuracy of genomic prediction by providing stronger linkage disequilibrium (LD) between markers and quantitative trait loci affecting a trait, especially in populations with a high genetic diversity such as Australian Merino sheep. The aim of this study was to compare the accuracy of genomic prediction for Merino yearling and adult wool traits based on observed and imputed 600K single nucleotide polymorphism (SNP) marker genotypes with the accuracy based on moderate-density (50K) marker genotypes. Genomic best linear unbiased prediction (GBLUP) and a Bayesian approach (BayesR) were used as prediction methods. Results showed a small relative increase in accuracy between 2 to 15% (of the previous accuracy) when using a HD marker set. The results of BayesR were on average similar to GBLUP. Considerably higher (up to 25% relative increase) in prediction accuracy was observed for animals with lower genomic relationship to the reference population.
Publication Type: Conference Publication
Conference Name: 21st Conference of the Association for the Advancement of Animal Breeding and Genetics conference, Lorne, Australia, 28th - 30th September, 2015
Conference Details: 21st Conference of the Association for the Advancement of Animal Breeding and Genetics conference, Lorne, Australia, 28th - 30th September, 2015
Source of Publication: Proceedings of the Twenty-first Conference of the Association for the Advancement of Animal Breeding and Genetics, p. 165-168
Publisher: AAABG: Association for the Advancement of Animal Breeding and Genetics
Place of Publication: Bundoora, Australia
Field of Research (FOR): 070201 Animal Breeding
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Other Links: http://www.aaabg.org/aaabghome/proceedings21.php
Series Name: Proceedings of the AAABG ... Conference
Series Number : 21
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Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication

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