BLUP (Best Linear Unbiased Predictors) analysis for the selection of superior yellow diploid potato genotypes (Solanum tuberosum group Phureja)
One of the major challenges that breeders face is the differential response of genotypes from one environment to another, known as the genotype × environmental interaction (GxE). The optimal procedure with the restricted maximum likelihood/best linear unbiased predictor (REML/BLUP) allows simultaneo...
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| Format: | Online |
| Language: | eng |
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Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC
2020
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/8138 |
| _version_ | 1801706292253818880 |
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| author | Pacheco, José E. Urquijo, Johan Sebastian Darghan, Aquiles Enrique Rodríguez, Luis Ernesto |
| author_facet | Pacheco, José E. Urquijo, Johan Sebastian Darghan, Aquiles Enrique Rodríguez, Luis Ernesto |
| author_sort | Pacheco, José E. |
| collection | OJS |
| description | One of the major challenges that breeders face is the differential response of genotypes from one environment to another, known as the genotype × environmental interaction (GxE). The optimal procedure with the restricted maximum likelihood/best linear unbiased predictor (REML/BLUP) allows simultaneous estimation of genetic parameters and prediction of genotypic values. BLUP predictors are an alternative to the narrowing of biased values, which are based on variances of genotype to determine the response value, as a complement to the selection index (SI). The ESIM (Eigenvalue Selection Index) selects genotypes based on two or more variables or selection characters as long as the economic matrix possesses the appropriate values for highlighting the desired response variable. Three stages of selection were evaluated in an advanced diploid potato improvement program. BLUP values were obtained for the yield and specific gravity variables, used to determine the genetic parameters and the SI. The genetic gain for yield corresponded to 1.228 kg/plant with a heritability (H2) = 0.82, while the GA for GE was 0.02 with an H2 = 0.935. The SI from the BLUP values selected in the final stages of the three new cultivars (Criolla Dorada, Criolla Ocarina and Criolla Sua Pa) was registered at the Instituto Colombiano Agropecuario (ICA). Although BLUE and BLUP are highly correlated, the BLUP/ESIM analysis has an advantage as a predictor because it reduces responses to the environmental effect, efficiently selecting genotypes with a high agronomic potential. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-8138 |
| institution | Revista Colombiana de Ciencias Hortícolas |
| language | eng |
| publishDate | 2020 |
| publisher | Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-81382020-12-23T15:26:53Z BLUP (Best Linear Unbiased Predictors) analysis for the selection of superior yellow diploid potato genotypes (Solanum tuberosum group Phureja) Análisis BLUP (Best Linear Unbiased Predictors) en etapas avanzadas de selección en papa criolla (Solanum tuberosum Grupo Phureja) Pacheco, José E. Urquijo, Johan Sebastian Darghan, Aquiles Enrique Rodríguez, Luis Ernesto Potato breeding Selection index ESIM Genetic parameters Potato Mejoramiento de papa Índice de selección ESIM Parámetros genéticos Papa One of the major challenges that breeders face is the differential response of genotypes from one environment to another, known as the genotype × environmental interaction (GxE). The optimal procedure with the restricted maximum likelihood/best linear unbiased predictor (REML/BLUP) allows simultaneous estimation of genetic parameters and prediction of genotypic values. BLUP predictors are an alternative to the narrowing of biased values, which are based on variances of genotype to determine the response value, as a complement to the selection index (SI). The ESIM (Eigenvalue Selection Index) selects genotypes based on two or more variables or selection characters as long as the economic matrix possesses the appropriate values for highlighting the desired response variable. Three stages of selection were evaluated in an advanced diploid potato improvement program. BLUP values were obtained for the yield and specific gravity variables, used to determine the genetic parameters and the SI. The genetic gain for yield corresponded to 1.228 kg/plant with a heritability (H2) = 0.82, while the GA for GE was 0.02 with an H2 = 0.935. The SI from the BLUP values selected in the final stages of the three new cultivars (Criolla Dorada, Criolla Ocarina and Criolla Sua Pa) was registered at the Instituto Colombiano Agropecuario (ICA). Although BLUE and BLUP are highly correlated, the BLUP/ESIM analysis has an advantage as a predictor because it reduces responses to the environmental effect, efficiently selecting genotypes with a high agronomic potential. Uno de los principales desafíos que enfrentan los mejoradores es la respuesta diferencial de los genotipos de un entorno a otro, conocida como la interacción genotipo × ambiente (GxE). El procedimiento óptimo restringido de máxima verosimilitud/mejor predictor imparcial lineal (REML / BLUP) permite la estimación simultánea de parámetros genéticos y la predicción de valores genotípicos. Los predictores BLUP se presentan como una alternativa al estrechamiento de los valores sesgados. Se basa en las variaciones por genotipo para determinar su valor de respuesta como complemento al índice de selección (SI). El índice de selección (IS) ESIM (Eigenvalue Selection Index) permite seleccionar genotipos basados en dos o más variables o caracteres de selección siempre y cuando la matriz económica posea los valores adecuados para resaltar la variable respuesta deseada. Se evaluaron tres etapas de selección en un programa avanzado de mejoramiento de papa diploide, se obtuvieron los valores BLUP para las variables rendimiento y gravedad específica (GE), y a partir de ellos los parámetros genéticos y el IS. La ganancia genética para rendimiento correspondió a 1.228 kg/planta con una heredabilidad (H2)=0,82, mientras que la GA para GE fue 0,02 con una H2 = 0,935. El IS a partir de los valores BLUP seleccionó en las etapas finales tres nuevos cultivares (Criolla Dorada, Criolla Ocarina y Criolla Sua Pa) que fueron registradas ante el Instituto Colombiano Agropecuario (ICA). Aunque BLUE y BLUP están altamente correlacionadas, el análisis BLUP/ESIM da ventaja al predictor pues reduce las respuestas con efecto ambiental, seleccionando eficientemente genotipos con alto potencial varietal. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2020-06-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Text Texto application/pdf https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/8138 10.17584/rcch.2020v14i1.8138 Revista Colombiana de Ciencias Hortícolas; Vol. 14 No. 1 (2020); 125-134 Revista Colombiana de Ciencias Hortícolas; Vol. 14 Núm. 1 (2020); 125-134 Revista Colombiana de Ciencias Hortícolas; Vol. 14 No 1 (2020); 125-134 Revista Colombiana de Ciencias Hortícolas; V. 14 N. 1 (2020); 125-134 Revista Colombiana de Ciencias Hortícolas; v. 14 n. 1 (2020); 125-134 2422-3719 2011-2173 eng https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/8138/9376 Colombia; Cundinamarca Colombia; Cundinamarca Copyright (c) 2020 Revista Colombiana de Ciencias Hortícolas |
| spellingShingle | Potato breeding Selection index ESIM Genetic parameters Potato Mejoramiento de papa Índice de selección ESIM Parámetros genéticos Papa Pacheco, José E. Urquijo, Johan Sebastian Darghan, Aquiles Enrique Rodríguez, Luis Ernesto BLUP (Best Linear Unbiased Predictors) analysis for the selection of superior yellow diploid potato genotypes (Solanum tuberosum group Phureja) |
| title | BLUP (Best Linear Unbiased Predictors) analysis for the selection of superior yellow diploid potato genotypes (Solanum tuberosum group Phureja) |
| title_alt | Análisis BLUP (Best Linear Unbiased Predictors) en etapas avanzadas de selección en papa criolla (Solanum tuberosum Grupo Phureja) |
| title_full | BLUP (Best Linear Unbiased Predictors) analysis for the selection of superior yellow diploid potato genotypes (Solanum tuberosum group Phureja) |
| title_fullStr | BLUP (Best Linear Unbiased Predictors) analysis for the selection of superior yellow diploid potato genotypes (Solanum tuberosum group Phureja) |
| title_full_unstemmed | BLUP (Best Linear Unbiased Predictors) analysis for the selection of superior yellow diploid potato genotypes (Solanum tuberosum group Phureja) |
| title_short | BLUP (Best Linear Unbiased Predictors) analysis for the selection of superior yellow diploid potato genotypes (Solanum tuberosum group Phureja) |
| title_sort | blup best linear unbiased predictors analysis for the selection of superior yellow diploid potato genotypes solanum tuberosum group phureja |
| topic | Potato breeding Selection index ESIM Genetic parameters Potato Mejoramiento de papa Índice de selección ESIM Parámetros genéticos Papa |
| topic_facet | Potato breeding Selection index ESIM Genetic parameters Potato Mejoramiento de papa Índice de selección ESIM Parámetros genéticos Papa |
| url | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/8138 |
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