Recurrent mass selection for upright plant architecture in common bean

Pires, Luíz Paulo Miranda; Ramalho, Magno Antônio Patto; Abreu, Ângela de Fátima Barbosa; Ferreira, Mônica

doi:10.1590/s0103-90162014000300009

Cited by 20 publications

(27 citation statements)

References 5 publications

(6 reference statements)

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“…The number of progenies assessed varies widely, but normally, in each segregating population, it is <100 progenies (Ferreira et al, 2000). The values of 35% used in F 2:3 and 50% in the other generations, on a family means across replication levels, are within the limits normally reported in the literature (Ramalho et al, 2012;Borel et al, 2013;Pires et al, 2014). Therefore, 100 progenies is the number that allows good genetic sampling in a segregating population.…”

Section: Simulations Resultsmentioning

confidence: 82%

Multigeneration Index in the Within‐Progenies Bulk Method for Breeding of Self‐pollinated Plants

et al. 2015

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This study proposes a strategy for improving the bulk method within progenies in self‐pollinated plants. The proposal focuses on the use of a multigeneration index, which considers the whole information across generations and the covariance among successive generations with a view toward identification of the best progenies. The results of the simulation and analysis of field data from common bean (Phaseolus vulgaris L.) were concordant and showed that the estimates of the accuracies were near 85% using the multigeneration index and 70% for the traditional methodology based on comparisons among progeny means of the generation F3:6 or of the last generation evaluated. Another advantage of the index is mitigation of the effect of the genotype × environment interaction, because it considers all the generations of assessment, thus involving interaction of the progenies with the sowing times. When selection is performed using only the information from the last generation assessed, performance of the progenies is inflated by this interaction. The efficiency of the strategy proposed leads to a 12% gain in relation to that which is normally used. This gain is considerable and equivalent in most cases to that which would be obtained through one additional selection cycle. It should be highlighted that this increase is obtained without any additional cost on experimentation, but simply through changing the procedure of identification of the best progenies after successive generations.

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Section: Simulations Resultsmentioning

confidence: 82%

Multigeneration Index in the Within‐Progenies Bulk Method for Breeding of Self‐pollinated Plants

et al. 2015

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“…This procedure was repeated for CVIII and CXII. Further details about the use of RS in these cycles are reported in Pires et al (2014).…”

Section: Methodsmentioning

confidence: 99%

Genetic progress estimation strategy for upright common bean plants using recurrent selection

et al. 2017

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ABSTRACT. Common bean producers in Brazil tend to grow plants as upright as possible. Because the control of this trait involves a large number of genes, recurrent selection (RS) is the best approach for successful plant improvement. Because plant architecture (PA) is evaluated using scores and usually has high heritability, RS for PA is performed through visual selection in generation S 0 . The aim of the present study was to evaluate selection progress and investigate whether this progress varies with the number of selected progenies or the generation evaluated. In addition, the effect of RS for the upright (PA) trait on progeny grain yield (GY) was investigated. Data of progenies S 0:3 and S 0:4 of the fifth, eighth, and twelfth cycles were used. A combined analysis of variance was performed using the adjusted means of the 47 best progenies from each generation and cycle, using two control cultivars as reference. A joint analysis of the two generations used during the evaluation of progenies for the different cycles was also performed. The genetic progress (GP) was estimated by fitting a linear regression equation to the relationship between the adjusted mean of each cycle and the number of cycles. We found that RS was efficient and the estimated GP of the evaluated progenies was 4.5%. Based on the GY heritability estimates, in more advanced generation selection for GY can be successfully performed on progenies. Thus, the selection already done for PA in F 2 could be associated to the most productive progenies.

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“…When breeding complex inheritance traits, some breeders have successfully used the recurrent selection strategy in bean breeding, such as in the cases of precocity , resistance to angular leaf spot (Amaro et al, 2007), PAG (Pires et al, 2014), and carioca-type YIELD (Ramalho et al, 2005). In the case of resistance to angular leaf spot, Amaro et al (2007) obtained genetic progress of 6.4% per cycle in four cycles of recurrent phenotypic selection using this strategy.…”

Section: Estimates Of Gca and Sca In Relation To Alsmentioning

confidence: 99%

“…Plants with an erect architecture suffer fewer losses during mechanical harvesting; this facilitates crop management, provides a better quality of grains harvested, and results in a lower incidence of pathogens (Pires et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Diallel analysis to choose parents for black bean (Phaseolus vulgaris L.) breeding

Moura¹,

Carneiro²,

Vale

et al. 2016

Genet. Mol. Res.

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ABSTRACT. In this study, conducted in two different seasons, we aimed to choose parents to obtain promising segregating populations for the extraction of black bean (Phaseolus vulgaris L.) lines that are superior in terms of disease resistance, plant architecture, and grain yield. Twelve parents were arranged in two groups to compose a partial diallel in a 5 x 7 scheme. Group 1 was composed of parents with black grains and erect plant architecture, while group 2 was composed of parents that had carioca grains and were resistant to the main fungal diseases that occur in the common bean. The following traits were evaluated: severity of angular leaf spot (ALS), plant architecture (PAG), and grain yield (YIELD). The data were analyzed according to a partial diallel model using parents and F 1 hybrids. In the genetic control of ALS and PAG, additive effects were predominant, while for YIELD, additive effects were predominant in one season and dominance effects were in another season, because it is a more complex trait than ALS and PAG. For YIELD, we observed an interaction between general combining ability and specific combining ability between seasons. The genes that control ALS, PAG, and YIELD were in eight of the 12 parents evaluated in the diallel. The cultivar 'BRS Estilo' is suitable to use as a parent in common bean breeding in terms of ALS, PAG and YIELD. Recurrent selection is the most recommended option for simultaneously breeding for PAG, YIELD, and resistance to angular leaf spot in bean culture.

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Recurrent mass selection for upright plant architecture in common bean

Cited by 20 publications

References 5 publications

Multigeneration Index in the Within‐Progenies Bulk Method for Breeding of Self‐pollinated Plants

Multigeneration Index in the Within‐Progenies Bulk Method for Breeding of Self‐pollinated Plants

Genetic progress estimation strategy for upright common bean plants using recurrent selection

Diallel analysis to choose parents for black bean (Phaseolus vulgaris L.) breeding

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