Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/17213
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dc.contributor.authorBoerner, Vinzenten
dc.contributor.authorJohnston, Daviden
dc.contributor.authorTier, Bruceen
dc.date.accessioned2015-05-07T14:46:00Z-
dc.date.issued2014-
dc.identifier.citationGenetics Selection Evolution, 46(1), p. 1-11en
dc.identifier.issn1297-9686en
dc.identifier.issn0999-193Xen
dc.identifier.urihttps://hdl.handle.net/1959.11/17213-
dc.description.abstractBackground: The major obstacles for the implementation of genomic selection in Australian beef cattle are the variety of breeds and in general, small numbers of genotyped and phenotyped individuals per breed. The Australian Beef Cooperative Research Center (Beef CRC) investigated these issues by deriving genomic prediction equations (PE) from a training set of animals that covers a range of breeds and crosses including Angus, Murray Grey, Shorthorn, Hereford, Brahman, Belmont Red, Santa Gertrudis and Tropical Composite. This paper presents accuracies of genomically estimated breeding values (GEBV) that were calculated from these PE in the commercial pure-breed beef cattle seed stock sector. Methods: PE derived by the Beef CRC from multi-breed and pure-breed training populations were applied to genotyped Angus, Limousin and Brahman sires and young animals, but with no pure-breed Limousin in the training population. The accuracy of the resulting GEBV was assessed by their genetic correlation to their phenotypic target trait in a bi-variate REML approach that models GEBV as trait observations. Results: Accuracies of most GEBV for Angus and Brahman were between 0.1 and 0.4, with accuracies for abattoir carcass traits generally greater than for live animal body composition traits and reproduction traits. Estimated accuracies greater than 0.5 were only observed for Brahman abattoir carcass traits and for Angus carcass rib fat. Averaged across traits within breeds, accuracies of GEBV were highest when PE from the pooled across-breed training population were used. However, for the Angus and Brahman breeds the difference in accuracy from using pure-breed PE was small. For the Limousin breed no reasonable results could be achieved for any trait. Conclusion: Although accuracies were generally low compared to published accuracies estimated within breeds, they are in line with those derived in other multi-breed populations. Thus PE developed by the Beef CRC can contribute to the implementation of genomic selection in Australian beef cattle breeding.en
dc.languageenen
dc.publisherBioMed Central Ltden
dc.relation.ispartofGenetics Selection Evolutionen
dc.titleAccuracies of genomically estimated breeding values from pure-breed and across-breed predictions in Australian beef cattleen
dc.typeJournal Articleen
dc.identifier.doi10.1186/s12711-014-0061-9en
dcterms.accessRightsGolden
dc.subject.keywordsAnimal Breedingen
dc.subject.keywordsGenomicsen
local.contributor.firstnameVinzenten
local.contributor.firstnameDaviden
local.contributor.firstnameBruceen
local.subject.for2008070201 Animal Breedingen
local.subject.for2008060408 Genomicsen
local.subject.seo2008830301 Beef Cattleen
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.emailvboerner@une.edu.auen
local.profile.emaildjohnsto@une.edu.auen
local.profile.emailbtier@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20150227-151451en
local.publisher.placeUnited Kingdomen
local.identifier.runningnumberArticle: 61en
local.format.startpage1en
local.format.endpage11en
local.identifier.scopusid84964314984en
local.peerreviewedYesen
local.identifier.volume46en
local.identifier.issue1en
local.access.fulltextYesen
local.contributor.lastnameBoerneren
local.contributor.lastnameJohnstonen
local.contributor.lastnameTieren
dc.identifier.staffune-id:vboerneren
dc.identifier.staffune-id:djohnstoen
dc.identifier.staffune-id:btieren
local.profile.orcid0000-0002-4995-8311en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:17426en
local.identifier.handlehttps://hdl.handle.net/1959.11/17213en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleAccuracies of genomically estimated breeding values from pure-breed and across-breed predictions in Australian beef cattleen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorBoerner, Vinzenten
local.search.authorJohnston, Daviden
local.search.authorTier, Bruceen
local.uneassociationUnknownen
local.identifier.wosid000344224600001en
local.year.published2014en
local.subject.for2020300305 Animal reproduction and breedingen
local.subject.for2020310509 Genomicsen
local.subject.seo2020100401 Beef cattleen
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
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