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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
03/10/2022 |
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Data da última atualização: |
03/10/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COMIN, H.; CAMPOS, G. S.; DOMINGUES, R.; GASPAR, E. B.; SOLLERO, B. P.; CARDOSO, F. F. |
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Afiliação: |
HELENA B. COMIN, Universidade Federal de Pelotas; G. S. CAMPOS, Universidade Estadual Paulista; ROBERT DOMINGUES, CPPSUL; EMANUELLE BALDO GASPAR, CPPSUL; BRUNA PENA SOLLERO, GPM; FERNANDO FLORES CARDOSO, CPPSUL. |
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Título: |
Genetic parameters and accuracy of traditional and genomic breeding values for resistance to infectious bovine keratoconjunctivitis in Hereford. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Livestock Science, v. 264, 105078, Oct. 2022. |
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Idioma: |
Inglês |
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Conteúdo: |
A B S T R A C T The objectives of this research were to estimate genetic parameters using a threshold animal model by traditional (pedigree and phenotype), single-step genomic BLUP (ssGBLUP) and Weighted ssGBLUP (WssGBLUP) methods, and assess the relative increase in accuracy with the addition of genomic information on the estimation of breeding values for the incidence of infectious bovine keratoconjunctivitis (IBK) in Hereford cattle. The data used in this study were obtained from animals belonging to four farms of Delta G breeders association and genetically evaluated by the Delta G breeding program, born between 2015 and 2017, totaling 293,716 individuals in the pedigree data and 1,579 phenotypes for IBK (1 = absence of disease or 2 = presence of disease). The genotypic data, after quality control, retained 37,505 SNP markers and 1,401 samples. A Bayesian framework and a threshold animal model were used to estimate variance components and to predict breeding values. Animals with genotype and phenotype for the traits studied were divided into 3 groups by random and k-means clustering cross-validation strategies. The estimate of direct heritability for resistance to IBK was 0.12 ± 0.01 and 0.10 ± 0.01 through PBLUP and ssGBLUP methods. The mean realized prediction accuracies based on linear regression statistics were 0.36, 0.65 and 0.70, respectively for PBLUP, ssGBLUP and WssGBLUP; therefore, the use of the genomic relationship matrices was superior to the pedigree-based method. When using the WssGBLUP method, there was an additional increase in prediction accuracy when compared to the ssGBLUP method, which was already substantially better than PBLUP. The prediction of breeding values using genomic information by the single-step methods should result in more accurate selection decisions compared to traditional pedigree evaluations and, consequently, genomic selection can be readily applied with moderately high reliability to help reduce the incidence of IBK in Hereford cattle. MenosA B S T R A C T The objectives of this research were to estimate genetic parameters using a threshold animal model by traditional (pedigree and phenotype), single-step genomic BLUP (ssGBLUP) and Weighted ssGBLUP (WssGBLUP) methods, and assess the relative increase in accuracy with the addition of genomic information on the estimation of breeding values for the incidence of infectious bovine keratoconjunctivitis (IBK) in Hereford cattle. The data used in this study were obtained from animals belonging to four farms of Delta G breeders association and genetically evaluated by the Delta G breeding program, born between 2015 and 2017, totaling 293,716 individuals in the pedigree data and 1,579 phenotypes for IBK (1 = absence of disease or 2 = presence of disease). The genotypic data, after quality control, retained 37,505 SNP markers and 1,401 samples. A Bayesian framework and a threshold animal model were used to estimate variance components and to predict breeding values. Animals with genotype and phenotype for the traits studied were divided into 3 groups by random and k-means clustering cross-validation strategies. The estimate of direct heritability for resistance to IBK was 0.12 ± 0.01 and 0.10 ± 0.01 through PBLUP and ssGBLUP methods. The mean realized prediction accuracies based on linear regression statistics were 0.36, 0.65 and 0.70, respectively for PBLUP, ssGBLUP and WssGBLUP; therefore, the use of the genomic relationship matrices was superior to the pedigree-based ... Mostrar Tudo |
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Palavras-Chave: |
Resistência a doença; Seleção genômica. |
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Thesagro: |
Gado de Corte; Parâmetro Genético. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02742naa a2200229 a 4500
001 2147076
005 2022-10-03
008 2022 bl uuuu u00u1 u #d
100 1 $aCOMIN, H.
245 $aGenetic parameters and accuracy of traditional and genomic breeding values for resistance to infectious bovine keratoconjunctivitis in Hereford.$h[electronic resource]
260 $c2022
520 $aA B S T R A C T The objectives of this research were to estimate genetic parameters using a threshold animal model by traditional (pedigree and phenotype), single-step genomic BLUP (ssGBLUP) and Weighted ssGBLUP (WssGBLUP) methods, and assess the relative increase in accuracy with the addition of genomic information on the estimation of breeding values for the incidence of infectious bovine keratoconjunctivitis (IBK) in Hereford cattle. The data used in this study were obtained from animals belonging to four farms of Delta G breeders association and genetically evaluated by the Delta G breeding program, born between 2015 and 2017, totaling 293,716 individuals in the pedigree data and 1,579 phenotypes for IBK (1 = absence of disease or 2 = presence of disease). The genotypic data, after quality control, retained 37,505 SNP markers and 1,401 samples. A Bayesian framework and a threshold animal model were used to estimate variance components and to predict breeding values. Animals with genotype and phenotype for the traits studied were divided into 3 groups by random and k-means clustering cross-validation strategies. The estimate of direct heritability for resistance to IBK was 0.12 ± 0.01 and 0.10 ± 0.01 through PBLUP and ssGBLUP methods. The mean realized prediction accuracies based on linear regression statistics were 0.36, 0.65 and 0.70, respectively for PBLUP, ssGBLUP and WssGBLUP; therefore, the use of the genomic relationship matrices was superior to the pedigree-based method. When using the WssGBLUP method, there was an additional increase in prediction accuracy when compared to the ssGBLUP method, which was already substantially better than PBLUP. The prediction of breeding values using genomic information by the single-step methods should result in more accurate selection decisions compared to traditional pedigree evaluations and, consequently, genomic selection can be readily applied with moderately high reliability to help reduce the incidence of IBK in Hereford cattle.
650 $aGado de Corte
650 $aParâmetro Genético
653 $aResistência a doença
653 $aSeleção genômica
700 1 $aCAMPOS, G. S.
700 1 $aDOMINGUES, R.
700 1 $aGASPAR, E. B.
700 1 $aSOLLERO, B. P.
700 1 $aCARDOSO, F. F.
773 $tLivestock Science$gv. 264, 105078, Oct. 2022.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
20/10/2009 |
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Data da última atualização: |
15/02/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CARVALHO, E. J. M.; OLIVEIRA JUNIOR, M. C. M. de; FREITAS, L. de S.; SILVEIRA FILHO, A.; VELOSO, C. A. C.; SILVA, A. R. |
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Afiliação: |
EDUARDO JORGE MAKLOUF CARVALHO, CPATU; MOISES CORDEIRO MORAO DE O JUNIOR, CPATU; LUIS DE SOUZA FREITAS, UFRA; AUSTRELINO SILVEIRA FILHO, CPATU; CARLOS ALBERTO COSTA VELOSO, CPATU; ARYSTIDES RESENDE SILVA, CPATU. |
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Título: |
Análise multivariada aplicada a avaliação da dinâmica física do solo em sistema de plantio direto e monocultivo na região do sudeste paraense, II. Cultivo da soja. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios: resumos. Fortaleza: SBCS, 2009. |
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Páginas: |
p. 392. |
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Idioma: |
Português |
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Notas: |
Trabalho 2118. |
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Conteúdo: |
O presente trabalho teve como objetivo avaliar a dinâmica física do solo em sistemas de plantio direto e monocultivo, na região sudeste paraense, da soja... |
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Palavras-Chave: |
Bioma Amazônia; Bioma Cerrado; Manejo ecológico do solo. |
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Thesagro: |
Física do Solo; Plantio Direto. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/172627/1/doc80.pdf
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Marc: |
LEADER 01116naa a2200265 a 4500
001 1572770
005 2018-02-15
008 2009 bl uuuu u00u1 u #d
100 1 $aCARVALHO, E. J. M.
245 $aAnálise multivariada aplicada a avaliação da dinâmica física do solo em sistema de plantio direto e monocultivo na região do sudeste paraense, II. Cultivo da soja.
260 $c2009
300 $ap. 392.
500 $aTrabalho 2118.
520 $aO presente trabalho teve como objetivo avaliar a dinâmica física do solo em sistemas de plantio direto e monocultivo, na região sudeste paraense, da soja...
650 $aFísica do Solo
650 $aPlantio Direto
653 $aBioma Amazônia
653 $aBioma Cerrado
653 $aManejo ecológico do solo
700 1 $aOLIVEIRA JUNIOR, M. C. M. de
700 1 $aFREITAS, L. de S.
700 1 $aSILVEIRA FILHO, A.
700 1 $aVELOSO, C. A. C.
700 1 $aSILVA, A. R.
773 $tIn: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios: resumos. Fortaleza: SBCS, 2009.
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Embrapa Amazônia Oriental (CPATU) |
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