Genomic selection in multi-breed dairy cattle populations

Detalhes bibliográficos
Autor(a) principal: Cole,John Bruce
Data de Publicação: 2016
Outros Autores: Silva,Marcos Vinicius Gualberto Barbosa da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000400195
Resumo: ABSTRACT Genomic selection has been a valuable tool for increasing the rate of genetic improvement in purebred dairy cattle populations. However, there also are many large populations of crossbred dairy cattle in the world, and multi-breed genomic evaluations may be a valuable tool for improving rates of genetic gain in those populations. Multi-breed models are an extension of single-breed genomic models in which a genomic relationship matrix is used to account for the breed origin of alleles in the population, as well as allele frequency differences between breeds. Most studies have found little benefit from multi-breed evaluations for pure breeds that have large reference populations. However, breeds with small reference populations may benefit from inclusion in a multi-breed evaluation without adversely affecting evaluations for purebred performance. Most research has been conducted in taurine breeds, so additional research is needed to determine the value of multi-breed reference populations for composite and synthetic breeds that include both indicine and taurine cattle adapted to tropical climates.
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spelling Genomic selection in multi-breed dairy cattle populationscrossbred cattlecrossbreedinggenomic evaluationmulti-breed populationsABSTRACT Genomic selection has been a valuable tool for increasing the rate of genetic improvement in purebred dairy cattle populations. However, there also are many large populations of crossbred dairy cattle in the world, and multi-breed genomic evaluations may be a valuable tool for improving rates of genetic gain in those populations. Multi-breed models are an extension of single-breed genomic models in which a genomic relationship matrix is used to account for the breed origin of alleles in the population, as well as allele frequency differences between breeds. Most studies have found little benefit from multi-breed evaluations for pure breeds that have large reference populations. However, breeds with small reference populations may benefit from inclusion in a multi-breed evaluation without adversely affecting evaluations for purebred performance. Most research has been conducted in taurine breeds, so additional research is needed to determine the value of multi-breed reference populations for composite and synthetic breeds that include both indicine and taurine cattle adapted to tropical climates.Sociedade Brasileira de Zootecnia2016-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000400195Revista Brasileira de Zootecnia v.45 n.4 2016reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1806-92902016000400008info:eu-repo/semantics/openAccessCole,John BruceSilva,Marcos Vinicius Gualberto Barbosa daeng2016-05-09T00:00:00Zoai:scielo:S1516-35982016000400195Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2016-05-09T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Genomic selection in multi-breed dairy cattle populations
title Genomic selection in multi-breed dairy cattle populations
spellingShingle Genomic selection in multi-breed dairy cattle populations
Cole,John Bruce
crossbred cattle
crossbreeding
genomic evaluation
multi-breed populations
title_short Genomic selection in multi-breed dairy cattle populations
title_full Genomic selection in multi-breed dairy cattle populations
title_fullStr Genomic selection in multi-breed dairy cattle populations
title_full_unstemmed Genomic selection in multi-breed dairy cattle populations
title_sort Genomic selection in multi-breed dairy cattle populations
author Cole,John Bruce
author_facet Cole,John Bruce
Silva,Marcos Vinicius Gualberto Barbosa da
author_role author
author2 Silva,Marcos Vinicius Gualberto Barbosa da
author2_role author
dc.contributor.author.fl_str_mv Cole,John Bruce
Silva,Marcos Vinicius Gualberto Barbosa da
dc.subject.por.fl_str_mv crossbred cattle
crossbreeding
genomic evaluation
multi-breed populations
topic crossbred cattle
crossbreeding
genomic evaluation
multi-breed populations
description ABSTRACT Genomic selection has been a valuable tool for increasing the rate of genetic improvement in purebred dairy cattle populations. However, there also are many large populations of crossbred dairy cattle in the world, and multi-breed genomic evaluations may be a valuable tool for improving rates of genetic gain in those populations. Multi-breed models are an extension of single-breed genomic models in which a genomic relationship matrix is used to account for the breed origin of alleles in the population, as well as allele frequency differences between breeds. Most studies have found little benefit from multi-breed evaluations for pure breeds that have large reference populations. However, breeds with small reference populations may benefit from inclusion in a multi-breed evaluation without adversely affecting evaluations for purebred performance. Most research has been conducted in taurine breeds, so additional research is needed to determine the value of multi-breed reference populations for composite and synthetic breeds that include both indicine and taurine cattle adapted to tropical climates.
publishDate 2016
dc.date.none.fl_str_mv 2016-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000400195
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000400195
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1806-92902016000400008
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
dc.source.none.fl_str_mv Revista Brasileira de Zootecnia v.45 n.4 2016
reponame:Revista Brasileira de Zootecnia (Online)
instname:Sociedade Brasileira de Zootecnia (SBZ)
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instname_str Sociedade Brasileira de Zootecnia (SBZ)
instacron_str SBZ
institution SBZ
reponame_str Revista Brasileira de Zootecnia (Online)
collection Revista Brasileira de Zootecnia (Online)
repository.name.fl_str_mv Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)
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