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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
21/02/2014 |
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Actualizado : |
18/12/2018 |
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Tipo de producción científica : |
Artículos Indexados |
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Autor : |
MISZTAL, I.; TSURUTA, S.; AGUILAR, I.; LEGARRA, A.; LAWLOR, T. J. |
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Afiliación : |
IGNACIO AGUILAR GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Approximation of genomic accuracies in single-step genomic evaluation. |
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Fecha de publicación : |
2011 |
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Fuente / Imprenta : |
Interbull Bulletin, 2011, v. 44, p. 103-109. |
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Idioma : |
Inglés |
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Contenido : |
ABSTRACT.
Reliability of predictions from single-step genomic BLUP (ssGBLUP) can be calculated by inversion, but that is not feasible for large data sets. Two proposed approximations of reliability are based on decomposition of a function of reliability into contributions from records, pedigree, and genotypes. The first approximation involves inversion of a matrix that contains inverses of the genomic relationship matrix (G) and the pedigree relationship matrix for genotyped animals (A22). The second approximation involves only the diagonal elements of those inverses. The approximations were tested with a simulated data set. The correlations between exact and approximated contributions due to genomic information were 0.92 for the first approximation and 0.56 for the second approximation; contributions were inflated 60 and 260%, respectively. The respective correlations for reliabilities were 0.98 and 0.72. After correction for inflation, those correlations increased to 0.99 and 0.89. Approximations of reliabilities of predictions by ssGBLUP are accurate and computationally feasible. A critical part of the approximations is quality control of SNP information and proper scaling of G. |
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Palabras claves : |
ACCURACY; BLUP; GENOMIC PREDICTION; RELIABILITY; SINGLE-STEP EVALUATION. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12207/1/1199-2069-1-PB.pdf
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Marc : |
LEADER 01821naa a2200229 a 4500
001 1012454
005 2018-12-18
008 2011 bl uuuu u00u1 u #d
100 1 $aMISZTAL, I.
245 $aApproximation of genomic accuracies in single-step genomic evaluation.$h[electronic resource]
260 $c2011
520 $aABSTRACT. Reliability of predictions from single-step genomic BLUP (ssGBLUP) can be calculated by inversion, but that is not feasible for large data sets. Two proposed approximations of reliability are based on decomposition of a function of reliability into contributions from records, pedigree, and genotypes. The first approximation involves inversion of a matrix that contains inverses of the genomic relationship matrix (G) and the pedigree relationship matrix for genotyped animals (A22). The second approximation involves only the diagonal elements of those inverses. The approximations were tested with a simulated data set. The correlations between exact and approximated contributions due to genomic information were 0.92 for the first approximation and 0.56 for the second approximation; contributions were inflated 60 and 260%, respectively. The respective correlations for reliabilities were 0.98 and 0.72. After correction for inflation, those correlations increased to 0.99 and 0.89. Approximations of reliabilities of predictions by ssGBLUP are accurate and computationally feasible. A critical part of the approximations is quality control of SNP information and proper scaling of G.
653 $aACCURACY
653 $aBLUP
653 $aGENOMIC PREDICTION
653 $aRELIABILITY
653 $aSINGLE-STEP EVALUATION
700 1 $aTSURUTA, S.
700 1 $aAGUILAR, I.
700 1 $aLEGARRA, A.
700 1 $aLAWLOR, T. J.
773 $tInterbull Bulletin, 2011$gv. 44, p. 103-109.
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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. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
29/10/2015 |
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Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
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Autor : |
CARRIQUIRY, A.I.; RIOS, A. |
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Afiliación : |
ANA INÉS CARRIQUIRY, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; AMALIA RIOS GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Evaluación de herbicidas para la siembra directa de girasol: resumen. |
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Fecha de publicación : |
1997 |
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Fuente / Imprenta : |
ln: CONGRESO NACIONAL DE INGENIERÍA AGRONÓMICA, 7.; JORNADA DE SIEMBRA DIRECTA, 1997, MONTEVIDEO, UY. Compendio de trabajos presentados. Montevideo, UY: AIA, 1997. |
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Páginas : |
p. 53. |
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Idioma : |
Español |
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Palabras claves : |
CONTROL QUÍMICO DE MALEZAS; EVALUACIÓN DE HERBICIDAS. |
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Thesagro : |
GIRASOL; HELIANTHUS ANNUUS; SIEMBRA DIRECTA. |
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Asunto categoría : |
H60 Malezas y escardas |
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Marc : |
LEADER 00669naa a2200193 a 4500
001 1046490
005 2015-10-29
008 1997 bl uuuu u00u1 u #d
100 1 $aCARRIQUIRY, A.I.
245 $aEvaluación de herbicidas para la siembra directa de girasol$bresumen.
260 $c1997
300 $ap. 53.
650 $aGIRASOL
650 $aHELIANTHUS ANNUUS
650 $aSIEMBRA DIRECTA
653 $aCONTROL QUÍMICO DE MALEZAS
653 $aEVALUACIÓN DE HERBICIDAS
700 1 $aRIOS, A.
773 $tln: CONGRESO NACIONAL DE INGENIERÍA AGRONÓMICA, 7.; JORNADA DE SIEMBRA DIRECTA, 1997, MONTEVIDEO, UY. Compendio de trabajos presentados. Montevideo, UY: AIA, 1997.
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INIA La Estanzuela (LE) |
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