Estimación de la aptitud combinatoria en poblaciones de tomate de cáscara

Montejo, Neymar Camposeco; Torres, Valentín Robledo; Aguilar, Luis Alonso Valdéz; Godina, Francisca Ramírez; Mendoza-Villarreal, Rosalinda; Mendoza, Adalberto Benavides

doi:10.29312/remexca.v6i3.630

Cited by 3 publications

(3 citation statements)

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“…Accordingly, De la Cruz et al (2007) stated that significant effects might result from differences between hybrids because of the sum of the additive effects of their parents, making it possible to select the best hybrids. However, there were no significant differences in NCB and Y, likely indicating that these traits are strongly influenced by the environment (Camposeco et al, 2015).…”

Section: Resultsmentioning

confidence: 84%

General and specific combining abilities in a lulo diallel cross (Solanum quitoense Lam.)

Duarte-Alvarado

Burbano

Santander

et al. 2021

Rev. Colomb. Cienc. Hortic.

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Lulo (Solanum quitoense) is a promising agro-industry fruit tree, not only because of its nutritional value, taste, and appearance but also because it provides an alternative production system in mild and moderately cold climate zones. Lulo crop yield and production in the Department of Nariño (Colombia) has decreased in recent years when compared to other producing regions in Colombia. Therefore, the objective of this study was to estimate the effects of the general combining ability (GCA) and the specific combining ability (SCA) in a diallel cross of 10 promising parents in four growing regions of the Department of Nariño for use in breeding programs. A total of 45 hybrid combinations were obtained and assessed with Griffing method 4. The following variables were assessed: days to flowering onset (DFO), number of clusters per branch (NCB), fruit weight (FW), polar axis (PA) of the fruit, and yield (Y). The analysis of variance showed statistical differences for most variables in response to single-cross hybrid effects and locations, except for NCB and Y. Moreover, significant differences were found for the interactions between the GCA and SCA and the hybrids and locations, respectively, meaning that environment must be considered when selecting parents with specific adaptability. The effects of the GCA and SCA promoted higher positive values for the FW and Y in parents 4, 6, and 8 and their combinations. Therefore, these parental genotypes are promising for lulo genetic improvement programs since their additive effects and genetic dominance favor fruit weight and yield.

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Section: Resultsmentioning

confidence: 84%

General and specific combining abilities in a lulo diallel cross (Solanum quitoense Lam.)

Duarte-Alvarado

Burbano

Santander

et al. 2021

Rev. Colomb. Cienc. Hortic.

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“…Las relaciones genéticas encontradas en los dos genotipos del grupo A, mostraron un coeficiente de similitud de 0,73 con respecto al resto de las líneas, por lo que, resultaría interesante analizar su uso como posibles progenitores de híbridos, con el fin de aprovechar una potencial heterosis, la cual se ha demostrado que en esta especie es posible (Peña-Lomelí et al, 1998;Camposeco et al, 2015). Con respecto al grupo B, al analizar los datos morfológicos (Cuadro 2), se encontró que difieren significativamente en caracteres como peso, diámetro de fruto y rendimiento total; es común observar este tipo de incongruencias entre los análisis basados en datos morfológicos y en datos moleculares (Hillis y Wiens, 2000), sin descartar que estos conflictos puedan deberse a problemas metodológicos en ambos análisis.…”

Section: Líneaunclassified

Caracterización genética, química y agronómica de líneas avanzadas de tomate de cáscara

et al. 2019

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Introducción. Conocer la diversidad a nivel genético, químico y morfológico que existe entre individuos y poblaciones, es de gran utilidad en los programas de mejoramiento genético, ya que facilita la organización del material y la selección adecuada de genotipos superiores para el desarrollo de una población mejorada. Objetivo. El objetivo del presente trabajo fue caracterizar genética, química y agronómicamente líneas avanzadas de tomate de cáscara (Physalis ixocarpa Brot.), del programa de mejoramiento de hortalizas del Campo Experimental Bajío (CE-Bajío) del Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), México. Materiales y métodos. Durante la temporada primavera-verano y otoño-invierno de 2017, se cuantificó la variabilidad genética con marcadores moleculares de ADN de tipo AFLP (Amplified Fragment Length Polymorphism); se determinaron los compuestos fenólicos y tomatidina en fruto, y en lo agronómico el porcentaje de germinación, número de frutos por planta, peso del fruto, diámetro ecuatorial y polar, y el rendimiento. Resultados. Se obtuvo un promedio general de similitud entre los genotipos de 0,86. De acuerdo con las relaciones genéticas, se detectaron las líneas 4 y 70 como posibles progenitores de híbridos y un patrón geográfico en los agrupamientos. La diversidad química indicó que el mayor contenido de flavonoides (51,1 mg EAG/100 g) se presentó en la L-86, de fenoles y antocianinas (396, 8 y 7,22 mg EAG/100 g, resp.) en la L-182, y de taninos (188,4 mg EAG/100 g) en la L-97, mientras que la tomatidina fue mayor en frutos verdes (2,23-3,81 mg EAG/100 g) que en morados. El intervalo de rendimiento de las líneas fue de 11,4 a 47,6 t/ha, donde el 20% de las líneas superaron la media de rendimiento nacional (40 t/ha). Se destacó la L-37 con 47,6 t/ha, que además produjo mayor número de frutos por planta, diámetro ecuatorial y polar, y una tasa de germinación de 93,3%. Conclusión. Las líneas 37, 25, 27 y 167, tienen potencial para ser validadas para uso comercial y como líneas parentales.

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“…Considering the low number of cultivars and/or hybrids with high fruit yield, the search for genotypes with high general combining ability (GCA) and speci c combining ability (SCA) is important for the development of superior genetic materials. (Camposeco-Montejo et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Partial diallel in Physalis ixocarpa Brot. to improve fruit production

Orella

Silva

Passos

2023

Preprint

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Tomate de cáscara (Physalis ixocarpa Brot.) has great potential to generate hybrids and cultivars that present high yields. The objective of this work was to estimate genetic parameters using the REML/BLUP methodology and investigate selection strategies for F1 populations from a partial diallel, to increase fruit production. The crosses were carried out in 2020 and the evaluation of the parents and hybrids were carried out in 2021, using a randomized block design with three replications, and an experimental plot of 10 plants. Combining ability, heterosis, phenotypic correlations, correlation networks, path analysis, and selection indexes were estimated. Genetic variability was found for the descriptors fruit production, number of fruits per plant, fruit transverse axis, and soluble solids. Additive effects were predominant over non-additive ones. The 92V and 173V parents were recommended to increase fruit production and the number of fruits per plant, due to their general combining ability values. PI02 and PI05 were the hybrids with the highest heterosis estimates for fruit production and number of fruits per plant. The negative correlation between fruit production and soluble solids stood out in the correlation study and trail analysis, assisting in the strategy regarding the selection direction. The selection indexes selected the progenies: PI02, PI04, PI05, 92V and 173V.

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Estimación de la aptitud combinatoria en poblaciones de tomate de cáscara

Cited by 3 publications

References 5 publications

General and specific combining abilities in a lulo diallel cross (Solanum quitoense Lam.)

General and specific combining abilities in a lulo diallel cross (Solanum quitoense Lam.)

Caracterización genética, química y agronómica de líneas avanzadas de tomate de cáscara

Partial diallel in Physalis ixocarpa Brot. to improve fruit production

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