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Title: The importance of population structure on the accuracy of genomic prediction in a multi-breed sheep population
Contributor(s): Daetwyler, H D (author); Kemper, K E (author); Van Der Werf, Julius H  (author)orcid ; Hayes, B J (author)
Publication Date: 2011
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Abstract: Population structure, due to breed, strains and sire family, influences the accuracy of genomic prediction. We investigated principle component analysis as a way to account for population structure in within and across breed genomic prediction of greasy fleece weight and eye muscle depth in multi-breed sheep data. Population structure (including for example half sib family relationships) is responsible for a large proportion of the accuracy of genomic prediction. Correcting for it increased accuracy of greasy fleece weight across breed prediction, but reduced accuracy of across breed prediction for eye muscle depth for breeds not in the reference set. However, the correction reduced within breed accuracy.
Publication Type: Conference Publication
Conference Details: 19th Conference of the Association for the Advancement of Animal Breeding and Genetics, Perth, Australia, 19th - 21st July, 2011
Source of Publication: Breeding Objectives: A New Paradigm, p. 327-330
Publisher: AAABG: Association for the Advancement of Animal Breeding and Genetics
Place of Publication: Perth, Australia
Field of Research (FoR) 2008: 070201 Animal Breeding
Socio-Economic Objective (SEO) 2008: 830310 Sheep - Meat
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
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Series Name: Proceedings of the AAABG ... Conference
Series Number : 19
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Appears in Collections:Conference Publication
School of Environmental and Rural Science

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