This study assessed the efficiency of Genomic selection (GS) or genome‐wide selection (GWS), based on Regularized Quantile Regression (RQR), in the selection of genotypes to breed autogamous plant populations with oligogenic traits. To this end, simulated data of an F2 population were used, with traits with different heritability levels (0.10, 0.20 and 0.40), controlled by four genes. The generations were advanced (up to F6) at two selection intensities (10% and 20%). The genomic genetic value was computed by RQR for different quantiles (0.10, 0.50 and 0.90), and by the traditional GWS methods, specifically RR-BLUP and BLASSO. A second objective was to find the statistical methodology that allows the fastest fixation of favorable alleles. In general, the results of the RQR model were better than or equal to those of traditional GWS methodologies, achieving the fixation of favorable alleles in most of the evaluated scenarios. At a heritability level of 0.40 and a selection intensity of 10%, RQR (0.50) was the only methodology that fixed the alleles quickly, i.e., in the fourth generation. Thus, it was concluded that the application of RQR in plant breeding, to simulated autogamous plant populations with oligogenic traits, could reduce time and consequently costs, due to the reduction of selfing generations to fix alleles in the evaluated scenarios.
Esta cartilla está dirigida a productores, técnicos e interesados en el cultivo de papa, con la intención de presentar los resultados relacionados con la caracterización del sistema productivo de papa en el departamento de Nariño. Se presentan cuatro ambientes o zonas de producción, delimitadas por la homogeneidad de sus características edafoclimáticas, dentro del área de influencia del proyecto. También se presentan las principales propiedades químicas de los suelos en el área productora de papa y un ejercicio de tipo lúdico y formativo que pretende familiarizar a los productores con algunos conceptos importantes relacionados con la fertilidad de los suelos, con el fin de generar criterios iniciales en cuanto a la interpretación de análisis de suelos y la nutrición del cultivo desde un punto de vista cualitativo. Igualmente, pretende aportar al conocimiento de la zona productora de papa de Nariño teniendo en cuenta las múltiples características asociadas al cultivo que se complementan con los demás ejes abordados por el proyecto, lo cual permitirá generar alternativas con enfoque territorial, no solo de tipo técnico, sino también socioeconómico y cultural, asociadas a los productores de papa del departamento.
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