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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
11/09/2014 |
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Actualizado : |
30/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
LOURENCO, D.A.L.; MISZTAL, I.; WANG, H.; AGUILAR, I.; TSURUTA, S.; BERTRAND, J.K. |
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Afiliación : |
IGNACIO AGUILAR GARCIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Prediction accuracy for a simulated maternally affected trait of beef cattle using different genomic evaluation models. |
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Fecha de publicación : |
2013 |
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Fuente / Imprenta : |
Journal of Animal Science, 2013, v.91, no.9, p.4090-4098. |
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ISSN : |
0021-8812 |
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DOI : |
10.2527/jas.2012-5826 |
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Idioma : |
Inglés |
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Notas : |
Article history: Published online July 26, 2013.
This study was partially funded by the American Angus Association (St. Joseph, MO) and the USDA Agriculture and Food Research Initiative (Grant no. 2009-65205-05665 from the USDA National Institute of Food and Agriculture Animal Genome Program). Helpful comments and suggestions from W. M. Snelling (U.S. Meat Animal Research Center, ARS, USDA, Clay Center, NE) and two anonymous reviewers are gratefully acknowledged. |
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Contenido : |
ABSTRACT.
Different methods for genomic evaluation were compared for accuracy and feasibility of evaluation using phenotypic, pedigree, and genomic information for a trait influenced by a maternal effect. A simulated population was constructed that included 15,800 animals in 5 generations. Genotypes from 45,000 SNP were available for 1,500 animals in the last 3 generations. Genotyped animals in the last generation had no phenotypes. Weaning weight data were simulated using an animal model with direct and maternal effects. Additive direct and maternal effects were considered either noncorrelated (Graphic) or negatively correlated (Graphic). Methods of analysis were traditional BLUP, BayesC using phenotypes and ignoring maternal effects (BayesCPR), BayesC using deregressed EBV (BayesCDEBV), and single-step genomic BLUP (ssGBLUP). Whereas BayesCPR can be used when phenotypes of only genotyped animals are available, BayesCDEBV can be used when BLUP EBV of genotyped animals are available, and ssGBLUP is suitable when genotypes, phenotypes, and pedigrees are jointly available. For all genotyped and young genotyped animals, mean accuracies from BayesCPR and BayesCDEBV were lower than accuracies from BLUP for direct and maternal effects. The differences in mean accuracy were greater when genetic correlation was negative. Gains in accuracy were observed when ssGBLUP was compared with BLUP; for the direct (maternal) effect the average gain was 0.01 (0.02) for all genotyped animals and 0.03 (0.02) for young genotyped animals without phenotypes. Similar gains were observed for 0 and negative genetic correlation. Accuracy with BayesCPR was affected by ignoring phenotypes of nongenotyped animals and maternal effect and by not accounting for parent average. Accuracy with BayesCDEBV was affected by approximations needed for deregression, not accounting for parent average, and sequential rather than simultaneous fitting of genomic and nongenomic information. Whereas BayesCDEBV presented a considerable bias, especially for maternal effect, ssGBLUP was unbiased for both effects. The computing time was 1 s for BLUP, 44 s for ssGBLUP, and over 2,000 s for BayesC. Greatest computational efficiency and accuracy of genomic prediction for a maternally affected trait was obtained when information from all nongenotyped but related individuals was included and phenotypes, pedigree, and genotypes were available and considered jointly. Increasing the gain in accuracy of genomic predictions obtained by ssGBLUP over BLUP may require an increase in the number of genotyped animals. MenosABSTRACT.
Different methods for genomic evaluation were compared for accuracy and feasibility of evaluation using phenotypic, pedigree, and genomic information for a trait influenced by a maternal effect. A simulated population was constructed that included 15,800 animals in 5 generations. Genotypes from 45,000 SNP were available for 1,500 animals in the last 3 generations. Genotyped animals in the last generation had no phenotypes. Weaning weight data were simulated using an animal model with direct and maternal effects. Additive direct and maternal effects were considered either noncorrelated (Graphic) or negatively correlated (Graphic). Methods of analysis were traditional BLUP, BayesC using phenotypes and ignoring maternal effects (BayesCPR), BayesC using deregressed EBV (BayesCDEBV), and single-step genomic BLUP (ssGBLUP). Whereas BayesCPR can be used when phenotypes of only genotyped animals are available, BayesCDEBV can be used when BLUP EBV of genotyped animals are available, and ssGBLUP is suitable when genotypes, phenotypes, and pedigrees are jointly available. For all genotyped and young genotyped animals, mean accuracies from BayesCPR and BayesCDEBV were lower than accuracies from BLUP for direct and maternal effects. The differences in mean accuracy were greater when genetic correlation was negative. Gains in accuracy were observed when ssGBLUP was compared with BLUP; for the direct (maternal) effect the average gain was 0.01 (0.02) for all genotyped animals an... Presentar Todo |
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Thesagro : |
GANADERÍA; GANADO DE CARNE; MEJORAMIENTO GENÉTICO ANIMAL; MODELOS DE SIMULACIÓN; SELECCIÓN GENÓMICA. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 03895naa a2200277 a 4500
001 1050147
005 2019-10-30
008 2013 bl uuuu u00u1 u #d
022 $a0021-8812
024 7 $a10.2527/jas.2012-5826$2DOI
100 1 $aLOURENCO, D.A.L.
245 $aPrediction accuracy for a simulated maternally affected trait of beef cattle using different genomic evaluation models.$h[electronic resource]
260 $c2013
500 $aArticle history: Published online July 26, 2013. This study was partially funded by the American Angus Association (St. Joseph, MO) and the USDA Agriculture and Food Research Initiative (Grant no. 2009-65205-05665 from the USDA National Institute of Food and Agriculture Animal Genome Program). Helpful comments and suggestions from W. M. Snelling (U.S. Meat Animal Research Center, ARS, USDA, Clay Center, NE) and two anonymous reviewers are gratefully acknowledged.
520 $aABSTRACT. Different methods for genomic evaluation were compared for accuracy and feasibility of evaluation using phenotypic, pedigree, and genomic information for a trait influenced by a maternal effect. A simulated population was constructed that included 15,800 animals in 5 generations. Genotypes from 45,000 SNP were available for 1,500 animals in the last 3 generations. Genotyped animals in the last generation had no phenotypes. Weaning weight data were simulated using an animal model with direct and maternal effects. Additive direct and maternal effects were considered either noncorrelated (Graphic) or negatively correlated (Graphic). Methods of analysis were traditional BLUP, BayesC using phenotypes and ignoring maternal effects (BayesCPR), BayesC using deregressed EBV (BayesCDEBV), and single-step genomic BLUP (ssGBLUP). Whereas BayesCPR can be used when phenotypes of only genotyped animals are available, BayesCDEBV can be used when BLUP EBV of genotyped animals are available, and ssGBLUP is suitable when genotypes, phenotypes, and pedigrees are jointly available. For all genotyped and young genotyped animals, mean accuracies from BayesCPR and BayesCDEBV were lower than accuracies from BLUP for direct and maternal effects. The differences in mean accuracy were greater when genetic correlation was negative. Gains in accuracy were observed when ssGBLUP was compared with BLUP; for the direct (maternal) effect the average gain was 0.01 (0.02) for all genotyped animals and 0.03 (0.02) for young genotyped animals without phenotypes. Similar gains were observed for 0 and negative genetic correlation. Accuracy with BayesCPR was affected by ignoring phenotypes of nongenotyped animals and maternal effect and by not accounting for parent average. Accuracy with BayesCDEBV was affected by approximations needed for deregression, not accounting for parent average, and sequential rather than simultaneous fitting of genomic and nongenomic information. Whereas BayesCDEBV presented a considerable bias, especially for maternal effect, ssGBLUP was unbiased for both effects. The computing time was 1 s for BLUP, 44 s for ssGBLUP, and over 2,000 s for BayesC. Greatest computational efficiency and accuracy of genomic prediction for a maternally affected trait was obtained when information from all nongenotyped but related individuals was included and phenotypes, pedigree, and genotypes were available and considered jointly. Increasing the gain in accuracy of genomic predictions obtained by ssGBLUP over BLUP may require an increase in the number of genotyped animals.
650 $aGANADERÍA
650 $aGANADO DE CARNE
650 $aMEJORAMIENTO GENÉTICO ANIMAL
650 $aMODELOS DE SIMULACIÓN
650 $aSELECCIÓN GENÓMICA
700 1 $aMISZTAL, I.
700 1 $aWANG, H.
700 1 $aAGUILAR, I.
700 1 $aTSURUTA, S.
700 1 $aBERTRAND, J.K.
773 $tJournal of Animal Science, 2013$gv.91, no.9, p.4090-4098.
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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Salto Grande; INIA Treinta y Tres. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
30/06/2022 |
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Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
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Autor : |
CABALLERO DELPINO, H.; DIAZ, R. (Ed.). |
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Afiliación : |
ROBERTO MIGUEL DIAZ ROSSELLO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Seminario Labranza Reducida en el Cono Sur. |
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Fecha de publicación : |
1982 |
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Fuente / Imprenta : |
Montevideo (Uruguay): IICA; CIAAB, Mayo 1982. |
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Páginas : |
192p. |
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Serie : |
(Serie Ponencias, Resultados y Recomendaciones de Eventos Tecnicos; 262). |
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ISSN : |
0301-5378 |
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Idioma : |
Español |
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Contenido : |
Resumen:
Contiene los trabajos y conferencias presentados durante el desarrollo del Seminario: Labranza Reducida en el Cono Sur, realizado en Uruguay del 4 al 7 de mayo de 1982 y donde estuvieron representantes de: Argentina, Bolivia, Brasil, Chile y Uruguay. Los trabajos presentados en este seminario destacan las técnicas de labranza reducida como una de las mejores posibilidades de control del tapiz protector del suelo, que al ser incorporada a los sistemas de producción, establecerían una nueva aproximación a la solución del problema de la erosión de las tierras agrícolas. Incluye además este documento, cuatro Anexos que describen detalles de las principales investigaciones en labranza reducida realizadas en Argentina, Brasil, Chile y Uruguay. Un quinto Anexo, proporciona información bibliográfica sobre el tema central del Seminario. |
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Thesagro : |
ARGENTINA; BOLIVIA; BRASIL; CERO-LABRANZA; CHILE; CONSERVACION DE SUELOS; CONTROL DE LA EROSION; EROSION; ESCARDA; EVALUACION; INSTITUCIONES DE INVESTIGACION; INVESTIGACION; LABRANZA DE CONSERVACION; LABRANZA MINIMA; LUCHA INTEGRADA; MALEZAS; MANEJO DEL SUELO; PROYECTOS DE DESARROLLO; RESIDUOS DE COSECHAS; SIEMBRA; SIEMBRA DIRECTA; SOJA; URUGUAY. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16373/1/RBI-LE.-Seminario-labranza-reducida-en-el-cono-sur.-IICA-CIAAB.1982.pdf
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Marc : |
LEADER 02020nam a2200433 a 4500
001 1013698
005 2022-06-30
008 1982 bl uuuu u00u1 u #d
022 $a0301-5378
100 1 $aCABALLERO DELPINO, H.
245 $aSeminario Labranza Reducida en el Cono Sur.
260 $aMontevideo (Uruguay): IICA; CIAAB, Mayo 1982.$c1982
300 $a192p.
490 $a(Serie Ponencias, Resultados y Recomendaciones de Eventos Tecnicos; 262).
520 $aResumen: Contiene los trabajos y conferencias presentados durante el desarrollo del Seminario: Labranza Reducida en el Cono Sur, realizado en Uruguay del 4 al 7 de mayo de 1982 y donde estuvieron representantes de: Argentina, Bolivia, Brasil, Chile y Uruguay. Los trabajos presentados en este seminario destacan las técnicas de labranza reducida como una de las mejores posibilidades de control del tapiz protector del suelo, que al ser incorporada a los sistemas de producción, establecerían una nueva aproximación a la solución del problema de la erosión de las tierras agrícolas. Incluye además este documento, cuatro Anexos que describen detalles de las principales investigaciones en labranza reducida realizadas en Argentina, Brasil, Chile y Uruguay. Un quinto Anexo, proporciona información bibliográfica sobre el tema central del Seminario.
650 $aARGENTINA
650 $aBOLIVIA
650 $aBRASIL
650 $aCERO-LABRANZA
650 $aCHILE
650 $aCONSERVACION DE SUELOS
650 $aCONTROL DE LA EROSION
650 $aEROSION
650 $aESCARDA
650 $aEVALUACION
650 $aINSTITUCIONES DE INVESTIGACION
650 $aINVESTIGACION
650 $aLABRANZA DE CONSERVACION
650 $aLABRANZA MINIMA
650 $aLUCHA INTEGRADA
650 $aMALEZAS
650 $aMANEJO DEL SUELO
650 $aPROYECTOS DE DESARROLLO
650 $aRESIDUOS DE COSECHAS
650 $aSIEMBRA
650 $aSIEMBRA DIRECTA
650 $aSOJA
650 $aURUGUAY
700 1 $aDIAZ, R.
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