Common bean breeding for resistance to anthracnose and angular leaf spot assisted by SCAR molecular markers

Rocha, Gilmar Silvério da; Pereira, Luis Paulo Lelis; Carneiro, Pedro Crescêncio Souza; Júnior, Trazilbo José de Paula; Carneiro, José Eustáquio de Souza

doi:10.1590/s1984-70332012000100005

Cited by 9 publications

(6 citation statements)

References 14 publications

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“…However, other agronomic traits should be taken into consideration. In bean breeding, a decisive characteristic is the upright growth habit, which has been the focus of a number of studies (Cunha et al 2005, Menezes Júnior et al 2008, Rocha et al 2012). An improved growth habit facilitates management practices and allows mechanical harvesting.…”

Section: Introductionmentioning

confidence: 99%

Effect of environments on the estimated genetic potential of segregating common bean populations

Rocha

Carneiro

Júnior

et al. 2013

Crop Breed. Appl. Biotechnol.

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Section: Introductionmentioning

confidence: 99%

Effect of environments on the estimated genetic potential of segregating common bean populations

Rocha

Carneiro

Júnior

et al. 2013

Crop Breed. Appl. Biotechnol.

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“…The selection made early, at F 3 populations, chose the best plants according to grain appearance, resulting in less genetic variability among the genes controlling this trait. Furthermore, grain appearance is less environmentally influenced (Baldoni, Santos, & Abreu, 2006; Rocha, Pereira, Carneiro, Paula Júnior, & Carneiro, 2012). Concerning angular leaf spot severity, the main reason for a mild P × G interaction is the fact that the same races of pathogens should be present in the experimental area between sowing times, making the interaction with the environment less significant.…”

Section: Discussionmentioning

confidence: 99%

Multipopulation recurrent selection: An approach with generation and population effects in selection of self‐pollinated progenies

et al. 2020

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Correlated information from different genetic sources is absent in most of annual self-pollinated crops using the recurrent selection strategy, which is a breeding strategy that improves crop traits consistently over years. In common bean (Phaseolus vulgaris L.) breeding programs, progenies coming from multiple biparental populations are evaluated across generations of inbred plants with the assumption that the data are not correlated. In this paper, in addition to the effects of progeny, we evaluate the effects of populations and generations and provide information for the selection process in a self-pollinated recurrent selection breeding program. Nineteen progenies were extracted from 20 breeding populations and evaluated at different sowing times across F 3:4 and F 3:5 generations. The evaluated traits were plant architecture, angular leaf spot resistance, grain appearance, and grain yield. Progenies were selected using three methods: means of progenies regardless of generation and population effects; the multigeneration index (MI), which considered the generation effect; and the selection index with parents, populations, progenies, and generations (SIPPPG). We showed that adding variation among progenies correctly weighted for different generations as well as variation among populations yield for an increase in genetic gain. Therefore, selection accuracies of the SIPPPG were the highest for all traits compared with those of MI and when generation and population effects were not considered.

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“…With regard to selecting more erect plants, Moura et al (2013) reported that hypocotyl diameter is highly correlated with architecture and provided higher precision and greater ease in the assessment. Silva et al (2013) and Rocha et al (2012) found a predominance of additive effects on the genetic control of hypocotyl diameter and architecture of common bean plants. Rocha et al (2012) additionally reported that the correlation between hypocotyl diameter and architectural grade is due to the additive effects of pleiotropic genes.…”

Section: Discussionmentioning

confidence: 99%

“…Silva et al (2013) and Rocha et al (2012) found a predominance of additive effects on the genetic control of hypocotyl diameter and architecture of common bean plants. Rocha et al (2012) additionally reported that the correlation between hypocotyl diameter and architectural grade is due to the additive effects of pleiotropic genes.…”

Section: Discussionmentioning

confidence: 99%

Morphoagronomic characterization and genetic diversity of a common bean RIL mapping population derived from the cross Rudá x AND 277

et al. 2016

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ABSTRACT. Recombinant inbred lines (RILs) are a valuable resource for building genetic linkage maps. The presence of genetic variability in the RILs is essential for detecting associations between molecular markers and loci controlling agronomic traits of interest. The main goal of this study was to quantify the genetic diversity of a common bean 2 L.C. Silva et al. Genetics and Molecular Research 15 (3): gmr.15038112 RIL population derived from a cross between Rudá (Mesoamerican gene pool) and AND 277 (Andean gene pool). This population was developed by the single seed descent method from 500 F 2 plants until the F 10 generation. Seven quantitative traits were evaluated in the field in 393 RILs, the parental lines, and five control cultivars. The plants were grown using a randomized block design with additional controls and three replicates. Significant differences were observed among the RILs for all evaluated traits (P < 0.01). A comparison of the RILs and parental lines showed significant differences (P < 0.01) for the number of days to flowering (DFL) and to harvest (DH), productivity (PROD) and mass of 100 beans (M100); however, there were no significant differences for plant architecture, degree of seed flatness, or seed shape. These results indicate the occurrence of additive x additive epistatic interactions for DFL, DH, PROD, and M100. The 393 RILs were shown to fall into 10 clusters using Tocher's method. This RIL population clearly contained genetic variability for the evaluated traits, and this variability will be crucial for future studies involving genetic mapping and quantitative trait locus identification and analysis.

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Common bean breeding for resistance to anthracnose and angular leaf spot assisted by SCAR molecular markers

Abstract: Abstract

Cited by 9 publications

References 14 publications

Effect of environments on the estimated genetic potential of segregating common bean populations

Effect of environments on the estimated genetic potential of segregating common bean populations

Multipopulation recurrent selection: An approach with generation and population effects in selection of self‐pollinated progenies

Morphoagronomic characterization and genetic diversity of a common bean RIL mapping population derived from the cross Rudá x AND 277

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