Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/28761
Title: | Impact of an Approximate Inverse of the Genomic Relationship Matrix for Single-Step Evaluation of Australian Meat Sheep | Contributor(s): | Meyer, K (author) ; Swan, A A (author) | Publication Date: | 2019-11 | Open Access: | Yes | Handle Link: | https://hdl.handle.net/1959.11/28761 | Open Access Link: | http://www.aaabg.org/aaabghome/fullproc23.php | Abstract: | Common implementations of single-step genomic evaluation require the inverse of the genomic relationship matrix. Obtaining the inverse can become computationally prohibitive as its size increases. Stimulated by rapidly increasing numbers of genotyped animals, several procedures to approximate this inverse have been proposed. We examine the impact of two methods of approximation on predicted breeding values for a multi-breed population of Australian sheep. Results show that very high correlations with predictions using the full inverse can be achieved whilst reducing computational requirements. However, current levels of genotyping in our data were relatively low and results need to be validated as larger number of genotypes become available. | 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. 242-245 | 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 | Fields of Research (FoR) 2020: | 300305 Animal reproduction and breeding | Socio-Economic Objective (SEO) 2008: | 830310 Sheep - Meat | Socio-Economic Objective (SEO) 2020: | 100412 Sheep for meat | Peer Reviewed: | Yes | HERDC Category Description: | E1 Refereed Scholarly Conference Publication | Publisher/associated links: | http://www.aaabg.org/aaabghome/ |
---|---|
Appears in Collections: | Animal Genetics and Breeding Unit (AGBU) Conference Publication |
Files in This Item:
File | Description | Size | Format |
---|
Page view(s)
2,234
checked on Feb 25, 2024
Download(s)
4
checked on Feb 25, 2024
Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.