Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/26918
Title: Accuracy of Genomic Prediction from Multi-Breed Sheep Reference Population
Contributor(s): Swan A A  (author)orcid ; Moghaddar, N  (author); van der Werf, J H J  (author)orcid 
Publication Date: 2013
Open Access: Yes
Handle Link: https://hdl.handle.net/1959.11/26918
Open Access Link: http://www.aaabg.org/aaabghome/AAABG20papers/moghaddar20220.pdfOpen Access Link
Abstract: Genomic estimated breeding values (GEBV) were calculated based on a combination of purebred and crossbred sheep for birth weight, weaning weight and post weaning weight using genomic best linear unbiased prediction (GBLUP). The genomic relationship matrix (G) was calculated based on population wide or breed of haplotype specific allele frequency using the 50k ovine Illumina SNP-chip. The accuracy of genomic prediction was estimated based on the correlation between genomic breeding value and an accurate breeding value based on progeny records. The result showed better genomic prediction accuracy for breeds with higher representation in the combined reference populations. Accuracies slightly decreased when the reference set contained a significant set of additional animals from another breed. This study showed no extra accuracy from across breed information using 50k SNP marker panel. The result showed a small but non-significant increase in accuracy when using breed specific allele frequencies in the calculation of G.
Publication Type: Conference Publication
Conference Name: 20th Association for the Advancement of Animal Breeding and Genetics (AAABG) Conference
Conference Details: Association for the Advancement of Animal Breeding and Genetics, Napier, NewZealand, 20-23 July, 2013
Source of Publication: Proceedings of the Twentieth Conference: Translating Science into Action, p. 220-223
Publisher: Association for the Advancement of Animal Breeding and Genetics
Place of Publication: Palmerston North, New Zealand
ISSN: 1328-3227
Field of Research (FOR): 070201 Animal Breeding
Socio-Economic Outcome Codes: 830310 Sheep - Meat
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Other Links: http://www.aaabg.org/aaabghome/proceedings20.php
Appears in Collections:Conference Publication
School of Environmental and Rural Science

Files in This Item:
2 files
File Description SizeFormat 
Show full item record
Google Media

Google ScholarTM

Check


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.