Implementation of single-step genomic BREEDPLAN evaluations in Australian beef cattle

Title
Implementation of single-step genomic BREEDPLAN evaluations in Australian beef cattle
Publication Date
2018
Author(s)
Johnston, David
( author )
OrcID: https://orcid.org/0000-0002-4995-8311
Email: djohnsto@une.edu.au
UNE Id une-id:djohnsto
Ferdosi, Mohammad
( author )
OrcID: https://orcid.org/0000-0001-5385-4913
Email: mferdos3@une.edu.au
UNE Id une-id:mferdos3
Connors, Natalie
( author )
OrcID: https://orcid.org/0000-0003-4866-4757
Email: nconnor2@une.edu.au
UNE Id une-id:nconnor2
Boerner, Vinzent
Cook, Jim
( author )
OrcID: https://orcid.org/0000-0002-7405-500X
Email: jcook8@une.edu.au
UNE Id une-id:jcook8
Girard, Christian
( author )
OrcID: https://orcid.org/0000-0003-0542-7073
Email: cgirard@une.edu.au
UNE Id une-id:cgirard
Swan, Andrew
( author )
OrcID: https://orcid.org/0000-0001-8048-3169
Email: aswan@une.edu.au
UNE Id une-id:aswan
Tier, Bruce
Editor
Editor(s): Hugh Blair
Type of document
Conference Publication
Language
en
Entity Type
Publication
Publisher
Massey University
Place of publication
Palmerston North, New Zealand
UNE publication id
une:23180
Abstract
Single-step GBLUP (ssGBLUP) procedures have now been implemented into Australia's BREEDPLAN genetic evaluation system for beef cattle. This major remodelling required the development of many new features and modifications to existing procedures. The first requirement was the construction of a flexible but robust set of procedures for handling and processing of raw SNP genotypes to enable the construction of suitable genomic relationship matrices. The analytical processes were modified to replace with and for the explicit fitting of genetic groups. A new accuracy algorithm was developed and the solver was revised. Examples from Australian Angus and Brahman breeds comparing current BLUP evaluation with ssGBLUP are presented to show the resultant changes and effects of implementing the new genomic evaluations.
Link
Citation
Proceedings of the World Congress on Genetics Applied to Livestock Production, v.Theory to Application 1, p. 269-277
Start page
269
End page
277

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