Diallel analysis of the genetic variation in some quantitative traits in dry beans

Chung, Jai H.; Stevenson, E. E.

doi:10.1080/00288233.1973.10421139

Cited by 24 publications

(20 citation statements)

References 11 publications

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“…Several studies have reported the presence of genes with an additive effect, similar to those found in the present study (Takeda et al, 1991;Vizgarra et al, 1992;Silva et al, 2004;Moreto et al, 2007). However, there are reports that occurrence of dominance was also important in W (Chung and Stevenson, 1973;Foolad and Bassiri, 1983;Guilherme et al, 2014).…”

Section: Discussionsupporting

confidence: 43%

Research Article Genetic control of number of flowers and pod set in common bean.

Martins¹,

Júnior

Abreu

et al. 2017

Genet. Mol. Res.

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ABSTRACT. This article aimed to study the genetic control of some flowers and pod set of common bean and to verify if its estimate varies with environmental conditions and gene pool. A complete diallel was used among six lines, but no reciprocal ones. The treatments were evaluated in three harvests/generations -F 2 , F 3 , and F 4 -in 2015/2016, in a randomized complete block design with four replications. The plot consisted of 3 lines with 4 m. In the center line, a receptacle to collect the aborted flowers/pods was placed. The traits considered were the number of flowers/plant (N), the percentage of pod set (V), and the production of grain/plant (W). A joint diallel analysis was performed, and the correlations between N, V, and W were estimated. N was 31.9 on average, and V was 40.4%. The average of Mesoamerican parents, for N and V, was higher than for Andean. Specific combining ability explained most of the variation for N, evidencing predominance of dominance effect. For V, specific combining ability was slightly lower than general combining ability, indicating additive loci and also dominance effects. These two traits were very influenced by environment and should be considered a strategy for greater grain yield stability of common bean.

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Section: Discussionsupporting

confidence: 43%

Research Article Genetic control of number of flowers and pod set in common bean.

Martins¹,

Júnior

Abreu

et al. 2017

Genet. Mol. Res.

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“…A predominância dos efeitos aditivos no controle genético da produtividade de grãos tem sido relatada em várias oportunidades (ABREU, 1989;TAKEDA, 1990;VIZGARRA, 1991); contudo, há relatos também da ocorrência de dominância (CHUNG & STEVENSON, 1973;FOOLAD & BASSARI, 1983).…”

Section: Tabela 1 Estimativas Das Variâncias Fenotípicasunclassified

Estimação dos componentes da variância fenotípica em feijoeiro utilizando o método genealógico

et al. 2007

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RESUMOA obtenção de informações a respeito do controle genético dos caracteres por meio de variâncias com associação aos métodos de condução de populações de feijoeiro tem sido uma estratégia pouco empregada, porém pode ser de grande auxílio aos melhoristas na tomada de decisões. Com esse objetivo foi utilizada uma população segregante proveniente do cruzamento entre as cultivares BRS MG Talismã e BRS Valente. O avanço das gerações foi realizado de acordo com o preconizado pelo método genealógico. Em F 4:5 obtiveram-se 256 progênies que foram avaliadas na safra das águas 2004/2005. As sementes de cada progênie foram colhidas em bulk originando as progênies F 4:6 , as quais foram avaliadas na safra das secas 2005. Os caracteres avaliados foram produtividade de grãos e porte das plantas. Constatou-se que na produção de grãos por planta, a variância ambiental dentro da parcela foi o principal componente da variância fenotípica entre progênies. A variância genética aditiva foi predominante para a produção de grãos, enquanto que para o porte a variância genética de dominância foi expressiva. Termos para indexação:Phaseolus vulgaris, componentes de variância, método genealógico. ABSTRACTObtaining information referent to the genetic control of traits by the estimates of variance associated to breeding methods is not frequently used for bean crops, however these estimate can greatly help breeders to take decision. With this objective a segregating population derived from a cross between the cultivars BRS MG Talismã and BRS Valente was evaluated. The advance of generations was done according to the pedigree method. In the INTRODUÇÃOA obtenção de informações a respeito do controle genético dos caracteres auxilia os melhoristas na tomada de decisão. No caso dos caracteres quantitativos, essas informações podem ser obtidas utilizando componentes de média ou de variância (CRUZ et al., 2004). Os componentes da variância têm a vantagem de os efeitos genéticos não se anularem, como pode ocorrer com médias, e possibilitam também estimar a herdabilidade e o ganho esperado com a seleção.Há, na literatura, algumas informações sobre o controle genético de alguns caracteres do feijoeiro utilizando variâncias, sendo a maioria com a geração F 2 e retrocruzamentos (TEIXEIRA et al., 1999) e cruzamentos dialélicos (OTUBO et al., 1995;SANTOS, 1984). O ideal, contudo, é associar o programa de melhoramento com a obtenção de estimativas que auxiliem os melhoristas na tomada de decisões. Essa estratégia tem sido relativamente pouco empregada com a cultura do feijoeiro. Além do mais, a maioria dos trabalhos existentes utilizaram o método denominado de progênies derivadas de plantas F 2 (SOUZA & RAMALHO, 1995). A desvantagem desse procedimento é que as progênies são avaliadas em gerações diferentes, o que dificulta as estimativas dos componentes de média ou variância devido ao efeito da interação genótipos por ambientes. Acrescenta-se ainda que o coeficiente associado

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“…Because of the positive association between X and NG with W, the inferences of genetic control of this trait were very similar to those reported for X and NG (Table 6 and 7), indicating a larger contribution of the allelic interaction of dominance to expression of the trait. Previous studies reported that in the genetic control of W, dominance was also important (Chung and Stevenson, 1973;Foolad and Bassiri, 1983). However, numerous other studies indicated the predominance of additive effects (Abreu, 1989;Takeda et al, 1991;Vizgarra, 1991;Moreto et al, 2007).…”

Section: Genetic Control Of Inflorescence In Common Beanmentioning

confidence: 99%

Genetic control of inflorescence in common bean

Guilherme¹,

Ramalho²,

Abreu³

et al. 2014

Genet. Mol. Res.

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ABSTRACT. The number of pods per common bean plant is a primary component of grain yield, which depends on the number of flowers produced and on the flower set. Thus, a larger number of flowers per plant would increase yield. Lines with inflorescences that had a large number of flowers compared to common bean plants now under cultivation were identified. We analyzed the genetic control of this trait and its association with grain yield. The cultivar BRSMG Talismã was crossed with 2 lines, L.59583 and L.59692, which have a large number of flowers. The F 1 , F 2 , and F 3 generations were obtained. These generations were assessed together with the parents in a randomized block experimental design with 2 replications. The traits assessed included length of inflorescence, number of pods per inflorescence, number of pods per plant, number of grains per plant, 100-grain weight, and grain yield per plant. Mean genetic components and variance were estimated. The traits length of inflorescence and number of pods per inflorescence exhibited genetic control with predominance that showed an additive effect. In the 2 crosses, genetic control of grain yield and of its primary components showed that the allelic interaction of dominance was high. The wide variability in the traits assessed may be used to increase yield of the common bean plant by increasing the number of flowers on the plant.

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Diallel analysis of the genetic variation in some quantitative traits in dry beans

Cited by 24 publications

References 11 publications

Research Article Genetic control of number of flowers and pod set in common bean.

Research Article Genetic control of number of flowers and pod set in common bean.

Estimação dos componentes da variância fenotípica em feijoeiro utilizando o método genealógico

Genetic control of inflorescence in common bean

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