Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/28989
Title: Genome-Wide Association Study of Carcase and Eating Quality Traits in Australian Angus Beef Cattle
Contributor(s): Weerasinghe, W M S P (author); Crook, B J (author); Clark, S A  (author)orcid ; Moghaddar, N  (author)orcid ; Byrne, A I (author)
Publication Date: 2019
Open Access: Yes
Handle Link: https://hdl.handle.net/1959.11/28989
Open Access Link: http://www.aaabg.org/aaabghome/fullproc23.phpOpen Access Link
Abstract: Eating quality traits are important determinants of consumer satisfaction and are considered as traits of economic importance for genetic improvement in the Australian beef industry. In this study, the genotypic and phenotypic data of 3,454 Angus cattle were analysed to identify genomic regions that potentially influence carcase traits, especially those related to eating quality. A genome-wide association study revealed 3, 5, 1 and 13 significant SNPs associated with carcase weight (CWT), carcase eye muscle area (EMA), Meat Standards Australia Index (MSA_I) and ossification score (OSS) respectively. They were located across chromosomes 3, 7, 13 and 21 and accounted for 2%, 4%, 6% and 12% of the total genetic variance for CWT, EMA, MSA_I and OSS, respectively. No significant SNPs were evident for MSA marble score (MSA_M). Results of this study may have potential practical application in the design of marker SNP chips and improving the accuracy of genomic prediction for carcase and eating quality traits in Angus beef cattle.
Publication Type: Conference Publication
Conference Details: AAABG 2019: 23rd Conference of the Association for the Advancement of Animal Breeding and Genetics, Armidale, Australia, 27 October-1 November
Source of Publication: Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.23, p. 266-269
Publisher: Association for the Advancement of Animal Breeding and Genetics (AAABG)
Place of Publication: Armidale, Australia
ISSN: 1328-3227
Fields of Research (FoR) 2008: 070201 Animal Breeding
060412 Quantitative Genetics (incl. Disease and Trait Mapping Genetics)
060408 Genomics
Fields of Research (FoR) 2020: 300305 Animal reproduction and breeding
310506 Gene mapping
310509 Genomics
Socio-Economic Objective (SEO) 2008: 830301 Beef Cattle
Socio-Economic Objective (SEO) 2020: 100401 Beef cattle
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Publisher/associated links: http://www.aaabg.org/aaabghome/
Appears in Collections:Conference Publication
School of Environmental and Rural Science

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