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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
13/09/2021 |
Actualizado : |
14/09/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
CRUZ, M.; ARBELAEZ, J. D.; LOAIZA, K.; CUASQUER, J.; ROSAS, J.E.; GRATEROL, E. |
Afiliación : |
MARIBEL CRUZ, FLAR (Fondo Latinoamericano para Arroz de Riego); CIAT (International Center for Tropical Agriculture), Colombia.; JUAN DAVID ARBELAEZ, Dep. of Crop Sciences, Univ. of Illinois, USA.; KATHERINE LOAIZA, FLAR (Fondo Latinoamericano para Arroz de Riego) ; CIAT (International Center for Tropical Agriculture), Colombia.; JUAN CUASQUER, CIAT (International Center for Tropical Agriculture), Colombia.; JUAN EDUARDO ROSAS CAISSIOLS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EDUARDO GRATEROL, FLAR (Fondo Latinoamericano para Arroz de Riego); CIAT (International Center for Tropical Agriculture), Colombia. |
Título : |
Genetic and phenotypic characterization of rice grain quality traits to define research strategies for improving rice milling, appearance, and cooking qualities in Latin America and the Caribbean. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
The Plant Genome, September, 2021 OPEN ACCESS, e20134. Doi: https://doi.org/10.1002/tpg2.20134 |
Páginas : |
16 p. |
DOI : |
10.1002/tpg2.20134 |
Idioma : |
Inglés |
Notas : |
Article history: Received: 24 February 2021; Accepted: 23 June 2021; Corresponding author Juan David Arbelaez arbelaez@illinois.edu |
Contenido : |
Abstract
Rice (Oryza sativa L.)grain quality is a set of complex interrelated traits that include grain milling, appearance, cooking, and edible properties. As consumer preferences in Latin America and the Caribbean evolve, determining what traits best capture regional grain quality preferences is fundamental for breeding and cultivar release.
In this study, a genome-wide association study (GWAS), marker-assisted selection (MAS), and genomic selection (GS) were evaluated to help guide the development of new breeding strategies for rice grain quality improvement. For this purpose, 284 rice lines representing over 20 yr of breeding in Latin America and the Caribbean were genotyped and phenotyped for 10 different traits including grain milling, appearance, cooking, and edible quality traits. Genetic correlations among the 10 traits ranged from ?0.83 to 0.85. A GWAS identified 19 significant marker/trait combinations associated with eight grain quality traits. Four functional markers, three located in the Waxy and one in the starch synthase IIa genes, were significantly associated with six grain-quality traits. These markers individually explained 51?75% of the phenotypic variance depending on the trait, clearly indicating their potential utility for MAS.
Cross-validation studies to evaluate predictive abilities of four different GS models for each of the 10 quality traits were conducted and predictive abilities ranged from 0.3 to 0.72. Overall, the machine learning model random forest had the highest predictive abilities and was especially effective for traits where large effect quantitative trait loci were identified. This study provides the foundation for deploying effective molecular breeding strategies for grain quality in Latin American rice breeding programs. MenosAbstract
Rice (Oryza sativa L.)grain quality is a set of complex interrelated traits that include grain milling, appearance, cooking, and edible properties. As consumer preferences in Latin America and the Caribbean evolve, determining what traits best capture regional grain quality preferences is fundamental for breeding and cultivar release.
In this study, a genome-wide association study (GWAS), marker-assisted selection (MAS), and genomic selection (GS) were evaluated to help guide the development of new breeding strategies for rice grain quality improvement. For this purpose, 284 rice lines representing over 20 yr of breeding in Latin America and the Caribbean were genotyped and phenotyped for 10 different traits including grain milling, appearance, cooking, and edible quality traits. Genetic correlations among the 10 traits ranged from ?0.83 to 0.85. A GWAS identified 19 significant marker/trait combinations associated with eight grain quality traits. Four functional markers, three located in the Waxy and one in the starch synthase IIa genes, were significantly associated with six grain-quality traits. These markers individually explained 51?75% of the phenotypic variance depending on the trait, clearly indicating their potential utility for MAS.
Cross-validation studies to evaluate predictive abilities of four different GS models for each of the 10 quality traits were conducted and predictive abilities ranged from 0.3 to 0.72. Overall, the machine learning model random... Presentar Todo |
Palabras claves : |
CALIDAD CULINARIA; CALIDAD DE GRANO; CALIDAD DE LA SEMILLA; FITOMEJORAMIENTO; RICE. |
Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15974/1/The-Plant-Genome-2021-Cruz.pdf
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Marc : |
LEADER 02841naa a2200277 a 4500 001 1062397 005 2021-09-14 008 2021 bl uuuu u00u1 u #d 024 7 $a10.1002/tpg2.20134$2DOI 100 1 $aCRUZ, M. 245 $aGenetic and phenotypic characterization of rice grain quality traits to define research strategies for improving rice milling, appearance, and cooking qualities in Latin America and the Caribbean.$h[electronic resource] 260 $c2021 300 $a16 p. 500 $aArticle history: Received: 24 February 2021; Accepted: 23 June 2021; Corresponding author Juan David Arbelaez arbelaez@illinois.edu 520 $aAbstract Rice (Oryza sativa L.)grain quality is a set of complex interrelated traits that include grain milling, appearance, cooking, and edible properties. As consumer preferences in Latin America and the Caribbean evolve, determining what traits best capture regional grain quality preferences is fundamental for breeding and cultivar release. In this study, a genome-wide association study (GWAS), marker-assisted selection (MAS), and genomic selection (GS) were evaluated to help guide the development of new breeding strategies for rice grain quality improvement. For this purpose, 284 rice lines representing over 20 yr of breeding in Latin America and the Caribbean were genotyped and phenotyped for 10 different traits including grain milling, appearance, cooking, and edible quality traits. Genetic correlations among the 10 traits ranged from ?0.83 to 0.85. A GWAS identified 19 significant marker/trait combinations associated with eight grain quality traits. Four functional markers, three located in the Waxy and one in the starch synthase IIa genes, were significantly associated with six grain-quality traits. These markers individually explained 51?75% of the phenotypic variance depending on the trait, clearly indicating their potential utility for MAS. Cross-validation studies to evaluate predictive abilities of four different GS models for each of the 10 quality traits were conducted and predictive abilities ranged from 0.3 to 0.72. Overall, the machine learning model random forest had the highest predictive abilities and was especially effective for traits where large effect quantitative trait loci were identified. This study provides the foundation for deploying effective molecular breeding strategies for grain quality in Latin American rice breeding programs. 653 $aCALIDAD CULINARIA 653 $aCALIDAD DE GRANO 653 $aCALIDAD DE LA SEMILLA 653 $aFITOMEJORAMIENTO 653 $aRICE 700 1 $aARBELAEZ, J. D. 700 1 $aLOAIZA, K. 700 1 $aCUASQUER, J. 700 1 $aROSAS, J.E. 700 1 $aGRATEROL, E. 773 $tThe Plant Genome, September, 2021 OPEN ACCESS, e20134. Doi: https://doi.org/10.1002/tpg2.20134
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INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha actual : |
14/09/2017 |
Actualizado : |
06/03/2020 |
Tipo de producción científica : |
Abstracts/Resúmenes |
Autor : |
MACEDO, I.; TERRA, J.A. |
Afiliación : |
IGNACIO MACEDO YAPOR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Rice-pastures rotations conversion to more intensive soil use systems: soil organic carbon dynamics impacts.[Abstract]. |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
In: INTERNATIONAL SYMPOSIUM ON SOIL ORGANIC MATTER (6., 3-7 Sep. 2017, HARPENDER, UK9. Proceedings. Harpender, UK: BSSS, 2017. |
Páginas : |
p. 410. |
Idioma : |
Inglés |
Notas : |
Sessin 6c: SOM in rice paddy systems |
Palabras claves : |
CARBONO ORGÁNICO DEL SUELO; EXPERIMENTOS DE LARGO PLAZO; INTENSIFICACIÓN SOSTENIBLE; LONG TERM EXPERIMENT; RICE ROTATIONS; ROTACIONES ARROCERAS; SISTEMA ARROZ-PASTURAS; SISTEMA ARROZ-SOJA; SOIL ORGANIC CARBON; SUSTAINABLE INTENSIFICATION. |
Thesagro : |
Arroz; SISTEMAS DE PRODUCCIÓN. |
Asunto categoría : |
P36 Erosión conservación y recuperación del suelo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/7263/1/Congreso-2017-Macedo-1.pdf
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Marc : |
LEADER 01008nam a2200277 a 4500 001 1057570 005 2020-03-06 008 2017 bl uuuu u01u1 u #d 100 1 $aMACEDO, I. 245 $aRice-pastures rotations conversion to more intensive soil use systems$bsoil organic carbon dynamics impacts.[Abstract].$h[electronic resource] 260 $aIn: INTERNATIONAL SYMPOSIUM ON SOIL ORGANIC MATTER (6., 3-7 Sep. 2017, HARPENDER, UK9. Proceedings. Harpender, UK: BSSS$c2017 300 $ap. 410. 500 $aSessin 6c: SOM in rice paddy systems 650 $aArroz 650 $aSISTEMAS DE PRODUCCIÓN 653 $aCARBONO ORGÁNICO DEL SUELO 653 $aEXPERIMENTOS DE LARGO PLAZO 653 $aINTENSIFICACIÓN SOSTENIBLE 653 $aLONG TERM EXPERIMENT 653 $aRICE ROTATIONS 653 $aROTACIONES ARROCERAS 653 $aSISTEMA ARROZ-PASTURAS 653 $aSISTEMA ARROZ-SOJA 653 $aSOIL ORGANIC CARBON 653 $aSUSTAINABLE INTENSIFICATION 700 1 $aTERRA, J.A.
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