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Title: Evolving to the best SNP panel for Hanwoo breed proportion estimates
Contributor(s): Esquivelzeta-Rabell, Cecilia  (author); Al-Mamun, Hawlader A (author); Lee, S H (author); Lee, H K (author); Song, K D (author); Gondro, Cedric  (author)orcid 
Publication Date: 2015
Open Access: Yes
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Abstract: Hanwoo is highly prized for its marbling ability and is the most important cattle breed in Korea. In order to maintain the integrity of the breed and for product certification purposes it is important to develop tools to confirm the origin of the products. Breed composition estimates based on a large number of molecular markers (e.g. HD SNP arrays) are highly accurate but expensive for routine usage. The identification of a reliable panel with a small number of markers will reduce costs and can enable broader adoption of the technology by industry. In this work a heuristic optimization method was used to find the most reliable subset of markers, from the Illumina BovineHD array, to estimate breed proportion in Hanwoo. Accuracies of breed proportion estimates above 90% can be achieved using as little as 200 markers. The best balance between accuracy and number of SNP was obtained with 500 markers achieving 94% accuracy. Rapid and cost effective breed composition prediction in Hanwoo cattle based on a SNP panel with at least 200 markers will help to certify the products with an acceptable accuracy and ensure breed purity within the breeding program. The method described herein is directly applicable to other breeds.
Publication Type: Conference Publication
Conference Details: 21st Conference of the Association for the Advancement of Animal Breeding and Genetics, Lorne, Australia, 28th - 30th September, 2015
Grant Details: ARC/DP130100542
Source of Publication: Proceedings of the Twenty-first Conference of the Association for the Advancement of Animal Breeding and Genetics, p. 473-476
Publisher: AAABG: Association for the Advancement of Animal Breeding and Genetics
Place of Publication: Bundoora, Australia
Field of Research (FOR): 070201 Animal Breeding
Socio-Economic Objective (SEO): 830301 Beef Cattle
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
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Series Name: Proceedings of the AAABG ... Conference
Series Number : 21
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Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
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