Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/19510
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dc.contributor.authorEsquivelzeta-Rabell, Ceciliaen
dc.contributor.authorMoghaddar, Nasiroddinen
dc.contributor.authorClark, Sam Aen
dc.contributor.authorVan Der Werf, Julius Hen
local.source.editorEditor(s): Kim Bunter, Tim Byrne, Hans Daetwyler, Susanne Hermesch, Kathryn Kemper, James Kijas, David Nation, Wayne Pitchford, Suzanne Rowe, Matt Shaffer, Alison van Eenennaamen
dc.date.accessioned2016-09-26T15:28:00Z-
dc.date.issued2015-
dc.identifier.citationProceedings of the Association for the Advancement of Animal Breeding and Genetics, v.21, p. 306-309en
dc.identifier.isbn9780646945545en
dc.identifier.issn1328-3227en
dc.identifier.urihttps://hdl.handle.net/1959.11/19510-
dc.description.abstractTo detect how much genetic variance is accounted for by different genomic regions one first step is to work at the chromosomal level. We used a half sib data structure for two growth traits in sheep as a potentially powerful design to partition the genetic variance across chromosomes. Records for post weaning weight (PW) and scan C site back fat (CF) were used from 5,239 merino sheep. The model of analysis accounted for population structure by fitting genetic group effects as well as the numerator relationship matrix (A) or the first five principal components (PC). Different approximations were compared fitting the genomic relationship matrix (0) based on 48,599 markers, or on single nucleotide polymorphisms of an individual chromosome. The correlation between chromosome length (L) and variance explained per chromosome (uJ) was 0.53 and 0.70 for PW and CF correspondingly, however significant differences in (uJ/L) were found between chromosomes, ranging from 0% to 17.5%. Some chromosomes explained more variance and covariance than expected, under the assumption that it is proportional to the chromosome size; suggesting that some chromosomes clearly harbor more QTL. Some chromosomes show a covariance of opposite sign indicating they could be used in selection to 'break' an unfavourable correlation (e.g. chromosome 8). These results represent a powerful source of information for genomic selection.en
dc.languageenen
dc.publisherAssociation for the Advancement of Animal Breeding and Genetics (AAABG)en
dc.relation.ispartofProceedings of the Association for the Advancement of Animal Breeding and Geneticsen
dc.titleEstimating the Genetic (Co)Variance Explained per Chromosome for Two Growth Traits using a Half Sib Data Structure in Sheepen
dc.typeConference Publicationen
dc.relation.conferenceAAABG 2015: 21st Conference of the Association for the Advancement of Animal Breeding and Geneticsen
dcterms.accessRightsGolden
dc.subject.keywordsAnimal Breedingen
local.contributor.firstnameCeciliaen
local.contributor.firstnameNasiroddinen
local.contributor.firstnameSam Aen
local.contributor.firstnameJulius Hen
local.subject.for2008070201 Animal Breedingen
local.subject.seo2008830311 Sheep - Woolen
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailcrabell2@une.edu.auen
local.profile.emailnmoghad4@une.edu.auen
local.profile.emailsclark37@une.edu.auen
local.profile.emailjvanderw@une.edu.auen
local.output.categoryE1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20160505-102059en
local.date.conference28th - 30th September, 2015en
local.conference.placeLorne, Australiaen
local.publisher.placeArmidale, Australiaen
local.format.startpage306en
local.format.endpage309en
local.url.openhttp://www.aaabg.org/aaabghome/AAABG21papers/EsquivelzetaRabell21306.pdfen
local.peerreviewedYesen
local.identifier.volume21en
local.access.fulltextYesen
local.contributor.lastnameEsquivelzeta-Rabellen
local.contributor.lastnameMoghaddaren
local.contributor.lastnameClarken
local.contributor.lastnameVan Der Werfen
dc.identifier.staffune-id:crabell2en
dc.identifier.staffune-id:nmoghad4en
dc.identifier.staffune-id:sclark37en
dc.identifier.staffune-id:jvanderwen
local.profile.orcid0000-0002-3600-7752en
local.profile.orcid0000-0001-8605-1738en
local.profile.orcid0000-0003-2512-1696en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:19701en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleEstimating the Genetic (Co)Variance Explained per Chromosome for Two Growth Traits using a Half Sib Data Structure in Sheepen
local.output.categorydescriptionE1 Refereed Scholarly Conference Publicationen
local.relation.urlhttp://www.aaabg.org/aaabghome/proceedings21.phpen
local.conference.detailsAAABG 2015: 21st Conference of the Association for the Advancement of Animal Breeding and Genetics, Lorne, Australia, 28th - 30th September, 2015en
local.search.authorEsquivelzeta-Rabell, Ceciliaen
local.search.authorMoghaddar, Nasiroddinen
local.search.authorClark, Sam Aen
local.search.authorVan Der Werf, Julius Hen
local.uneassociationUnknownen
local.year.published2015en
local.subject.for2020300305 Animal reproduction and breedingen
local.subject.seo2020100413 Sheep for woolen
local.date.start2015-09-28-
local.date.end2015-09-30-
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
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