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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
13/08/2015 |
Data da última atualização: |
03/01/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
COSTA, E. V.; DINIZ, D. B.; VERONEZE, R.; RESENDE, M. D. V. de; AZEVEDO, C. F.; GUIMARÃES, S. E. F.; SILVA, F. F.; LOPES, P. S. |
Afiliação: |
UFV; UFV; UFV; MARCOS DEON VILELA DE RESENDE, CNPF; UFV; UFV; UFV; UFV. |
Título: |
Estimating additive and dominance variances for complex traits in pigs combining genomic and pedigree information. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Genetics and Molecular Research, v. 14, n. 2, p. 6303-6311, June 2015. |
DOI: |
DOI http://dx.doi.org/10.4238/2015.June.11.4 |
Idioma: |
Inglês |
Conteúdo: |
Knowledge of dominance effects should improve genetic evaluations, provide the accurate selection of purebred animals, and enable better breeding strategies, including the exploitation of heterosis in crossbreeds. In this study, we combined genomic and pedigree data to study the relative importance of additive and dominance genetic variation in growth and carcass traits in an F2 pig population. Two GBLUP models were used, a model without a polygenic effect (ADM) and a model with a polygenic effect (ADMP). Additive effects played a greater role in the control of growth and carcass traits than did dominance effects. However, dominance effects were important for all traits, particularly in backfat thickness. The narrow-sense and broad-sense heritability estimates for growth (0.06 to 0.42, and 0.10 to 0.51, respectively) and carcass traits (0.07 to 0.37, and 0.10 to 0.76, respectively) exhibited a wide variation. The inclusion of a polygenic effect in the ADMP model changed the broad-sense heritability estimates only for birth weight and weight at 21 days of age. |
Palavras-Chave: |
Dominance; Genetic parameters; Herdabilidade; Melhoramento genético; Métodos de seleção; Piau pigs; Polygenic effect; Seleção genômica ampla. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/127885/1/2015-Deon-GWS-Estimating.pdf
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Marc: |
LEADER 02061naa a2200313 a 4500 001 2021860 005 2018-01-03 008 2015 bl uuuu u00u1 u #d 024 7 $aDOI http://dx.doi.org/10.4238/2015.June.11.4$2DOI 100 1 $aCOSTA, E. V. 245 $aEstimating additive and dominance variances for complex traits in pigs combining genomic and pedigree information.$h[electronic resource] 260 $c2015 520 $aKnowledge of dominance effects should improve genetic evaluations, provide the accurate selection of purebred animals, and enable better breeding strategies, including the exploitation of heterosis in crossbreeds. In this study, we combined genomic and pedigree data to study the relative importance of additive and dominance genetic variation in growth and carcass traits in an F2 pig population. Two GBLUP models were used, a model without a polygenic effect (ADM) and a model with a polygenic effect (ADMP). Additive effects played a greater role in the control of growth and carcass traits than did dominance effects. However, dominance effects were important for all traits, particularly in backfat thickness. The narrow-sense and broad-sense heritability estimates for growth (0.06 to 0.42, and 0.10 to 0.51, respectively) and carcass traits (0.07 to 0.37, and 0.10 to 0.76, respectively) exhibited a wide variation. The inclusion of a polygenic effect in the ADMP model changed the broad-sense heritability estimates only for birth weight and weight at 21 days of age. 653 $aDominance 653 $aGenetic parameters 653 $aHerdabilidade 653 $aMelhoramento genético 653 $aMétodos de seleção 653 $aPiau pigs 653 $aPolygenic effect 653 $aSeleção genômica ampla 700 1 $aDINIZ, D. B. 700 1 $aVERONEZE, R. 700 1 $aRESENDE, M. D. V. de 700 1 $aAZEVEDO, C. F. 700 1 $aGUIMARÃES, S. E. F. 700 1 $aSILVA, F. F. 700 1 $aLOPES, P. S. 773 $tGenetics and Molecular Research$gv. 14, n. 2, p. 6303-6311, June 2015.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
28/01/2022 |
Data da última atualização: |
11/07/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 5 |
Autoria: |
CARRARA, E. R.; PEIXOTO, M. G. C. D.; VERONEZE, R.; SILVA, F. F. e; RAMOS, P. V. B.; BRUNELI, F. A. T.; ZADRA, L. E. F.; VENTURA, H. T.; JOSAHKIAN, L. A.; LOPES, P. S. |
Afiliação: |
EULA REGINA CARRARA, Universidade Federal de Viçosa; MARIA GABRIELA CAMPOLINA D PEIXOTO, CNPGL; RENATA VERONEZE, Universidade Federal de Viçosa; FABYANO FONSECA E SILVA, Universidade Federal de Viçosa; PEDRO VITAL BRASIL RAMOS, Universidade Federal de Viçosa; FRANK ANGELO TOMITA BRUNELI, CNPGL; LENIRA EL FARO ZADRA, Centro Brasileiro de Melhoramento do Guzerá; HENRIQUE TORRES VENTURA, Associação Brasileira dos Criadores de Zebu; LUIZ ANTÔNIO JOSAHKIAN, Associação Brasileira dos Criadores de Zebu; PAULO SÁVIO LOPES, Universidade Federal de Viçosa. |
Título: |
Genetic study of quantitative traits supports the use of Guzerá as dual-purpose cattle. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Animal Bioscience, v. 35, n. 7, p. 955-963, 2022. |
DOI: |
https://doi.org/10.5713/ab.21.0458 |
Idioma: |
Inglês |
Conteúdo: |
Objective: The aim of this study was to estimate genetic parameters for 305-day cumulative milk yield and components, growth, and reproductive traits in Guzerá cattle. Methods: The evaluated traits were 305-day first-lactation cumulative yields (kg) of milk (MY305), fat (FY305), protein (PY305), lactose (LY305), and total solids (SY305); age at first calving (AFC) in days; adjusted scrotal perimeter (cm) at the ages of 365 (SP365) and 450 (SP450) days; and adjusted body weight (kg) at the ages of 210 (W210), 365 (W365) and 450 (W450) days. The (co)variance components were estimated using the restricted maximum likelihood method for single-trait, bi-trait and tri-trait analyses. Contemporary groups and additive genetic effects were included in the general mixed model. Maternal genetic and permanent environmental effects were also included for W210. Results: The direct heritability estimates ranged from 0.16 (W210) to 0.32 (MY305). The maternal heritability estimate for W210 was 0.03. Genetic correlation estimates among milk production traits and growth traits ranged from 0.92 to 0.99 and from 0.92 to 0.99, respectively. For milk production and growth traits, the genetic correlations ranged from 0.33 to 0.56. The genetic correlations among AFC and all other traits were negative ( 0.43 to 0.27). Scrotal perimeter traits and body weights showed genetic correlations ranging from 0.41 to 0.46, and scrotal perimeter and milk production traits showed genetic correlations ranging from 0.11 to 0.30. The phenotypic correlations were similar in direction (same sign) and lower than the corresponding genetic correlations. Conclusion: These results suggest the viability and potential of joint selection for dairy and beef traits in Guzerá cattle, taking into account reproductive traits. MenosObjective: The aim of this study was to estimate genetic parameters for 305-day cumulative milk yield and components, growth, and reproductive traits in Guzerá cattle. Methods: The evaluated traits were 305-day first-lactation cumulative yields (kg) of milk (MY305), fat (FY305), protein (PY305), lactose (LY305), and total solids (SY305); age at first calving (AFC) in days; adjusted scrotal perimeter (cm) at the ages of 365 (SP365) and 450 (SP450) days; and adjusted body weight (kg) at the ages of 210 (W210), 365 (W365) and 450 (W450) days. The (co)variance components were estimated using the restricted maximum likelihood method for single-trait, bi-trait and tri-trait analyses. Contemporary groups and additive genetic effects were included in the general mixed model. Maternal genetic and permanent environmental effects were also included for W210. Results: The direct heritability estimates ranged from 0.16 (W210) to 0.32 (MY305). The maternal heritability estimate for W210 was 0.03. Genetic correlation estimates among milk production traits and growth traits ranged from 0.92 to 0.99 and from 0.92 to 0.99, respectively. For milk production and growth traits, the genetic correlations ranged from 0.33 to 0.56. The genetic correlations among AFC and all other traits were negative ( 0.43 to 0.27). Scrotal perimeter traits and body weights showed genetic correlations ranging from 0.41 to 0.46, and scrotal perimeter and milk production traits showed genetic correlations ranging fro... Mostrar Tudo |
Palavras-Chave: |
Precocidade sexual. |
Thesagro: |
Bovino; Gado de Corte; Gado Leiteiro; Parâmetro Genético. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/236988/1/Genetic-study-of-quantitative-traits-supports-the-use-of-Guzera.pdf
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Marc: |
LEADER 02687naa a2200301 a 4500 001 2139427 005 2022-07-11 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.5713/ab.21.0458$2DOI 100 1 $aCARRARA, E. R. 245 $aGenetic study of quantitative traits supports the use of Guzerá as dual-purpose cattle.$h[electronic resource] 260 $c2022 520 $aObjective: The aim of this study was to estimate genetic parameters for 305-day cumulative milk yield and components, growth, and reproductive traits in Guzerá cattle. Methods: The evaluated traits were 305-day first-lactation cumulative yields (kg) of milk (MY305), fat (FY305), protein (PY305), lactose (LY305), and total solids (SY305); age at first calving (AFC) in days; adjusted scrotal perimeter (cm) at the ages of 365 (SP365) and 450 (SP450) days; and adjusted body weight (kg) at the ages of 210 (W210), 365 (W365) and 450 (W450) days. The (co)variance components were estimated using the restricted maximum likelihood method for single-trait, bi-trait and tri-trait analyses. Contemporary groups and additive genetic effects were included in the general mixed model. Maternal genetic and permanent environmental effects were also included for W210. Results: The direct heritability estimates ranged from 0.16 (W210) to 0.32 (MY305). The maternal heritability estimate for W210 was 0.03. Genetic correlation estimates among milk production traits and growth traits ranged from 0.92 to 0.99 and from 0.92 to 0.99, respectively. For milk production and growth traits, the genetic correlations ranged from 0.33 to 0.56. The genetic correlations among AFC and all other traits were negative ( 0.43 to 0.27). Scrotal perimeter traits and body weights showed genetic correlations ranging from 0.41 to 0.46, and scrotal perimeter and milk production traits showed genetic correlations ranging from 0.11 to 0.30. The phenotypic correlations were similar in direction (same sign) and lower than the corresponding genetic correlations. Conclusion: These results suggest the viability and potential of joint selection for dairy and beef traits in Guzerá cattle, taking into account reproductive traits. 650 $aBovino 650 $aGado de Corte 650 $aGado Leiteiro 650 $aParâmetro Genético 653 $aPrecocidade sexual 700 1 $aPEIXOTO, M. G. C. D. 700 1 $aVERONEZE, R. 700 1 $aSILVA, F. F. e 700 1 $aRAMOS, P. V. B. 700 1 $aBRUNELI, F. A. T. 700 1 $aZADRA, L. E. F. 700 1 $aVENTURA, H. T. 700 1 $aJOSAHKIAN, L. A. 700 1 $aLOPES, P. S. 773 $tAnimal Bioscience$gv. 35, n. 7, p. 955-963, 2022.
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