Genetics of common bean resistance to white mold

Carneiro, Flávia Fernandes; Santos, João Bosco dos; Gonçalves, Paulo Roberto Carvalho; Antônio, Rafaela Priscila; Souza, Thaís Paula de

doi:10.1590/s1984-70332011000200009

Cited by 10 publications

(16 citation statements)

References 19 publications

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“…G122 is a well-known source of resistance to white mold abroad (Griffiths, 2009;Miklas et al, 2014;Singh et al, 2014;Viteri and Singh, 2015) and recently has been used in breeding programs in Brazil (Carneiro et al, 2011;Carvalho et al, 2013). The physiological resistance present in G122 is controlled by one gene with a predominance of additive effects, which facilitates the use of this line in breeding programs (Carneiro et al, 2011).…”

Section: Resultsmentioning

confidence: 99%

“…The physiological resistance present in G122 is controlled by one gene with a predominance of additive effects, which facilitates the use of this line in breeding programs (Carneiro et al, 2011). Common bean lines exhibiting good levels of physiological resistance to white mold and commercially favorable grain type were recently obtained from backcrossing between G122 and an elite cultivar of "carioca" grain type (Carvalho et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

“…Recent studies concerning white mold resistance have been conducted in Brazil to identify sources of resistance (Carvalho et al, 2013;Souza et al, 2014;Lehner et al, 2015b) or understand the genetic control of resistance (Antonio et al, 2008;Carneiro et al, 2011). In a previous study (Lehner et al, 2015b), the physiological resistance of 20 putative sources of white mold resistance from the Bean White Mold Nursery (University of Nebraska, USA) was assessed.…”

Section: Introductionmentioning

confidence: 99%

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Reaction of sources of resistance to white mold to microsatellite haplotypes of Sclerotinia sclerotiorum

Lehner

Júnior

Vieira

et al. 2016

Sci. agric. (Piracicaba, Braz.)

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White mold caused by the fungus Sclerotinia sclerotiorum is the most yield-limiting disease of common bean in Brazil. To date, there has been no commercial cultivar resistant to this disease. In a greenhouse we evaluated white mold resistance sources (Cornell 605, A195 and G122) against eight isolates of S. sclerotiorum from five Brazilian states. A Brazilian cultivar (BRSMG Madrepérola) and a susceptible check (Beryl) were used as control. Treatments were arranged in factorial combinations (5 × 8) in a completely random design with four replicates.Disease severity was assessed on a rating scale of 1-to-9 together with lesion length, which was used to determine an area under the disease progress curve (AUDPC). Polymorphisms detected in ten microsatellite loci were used to assess variability between the isolates. Each isolate was a distinct haplotype; they formed a genetic tree with two clusters. One cluster was formed by three isolates collected from the states of Minas Gerais and São Paulo (southeastern); the others, by isolates from Paraná, Santa Catarina (southern), Goiás (Mid-western), and again, Minas Gerais.Genotype × isolate interaction was significant. In general, Beryl was more susceptible than BRSMG Madrepérola. Considering the AUDPC and/or the white mold reaction score, Cornell 605 exhibited more physiological resistance than BRSMG Madrepérola to seven isolates, A195 to five isolates, and G122 to two isolates. Our results suggest that Cornell 605 is the best source of resistance to white mold for the southern region, whereas Cornell 605 and A195 are somewhat superior to G122 for the southeastern and mid-western regions.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reaction of sources of resistance to white mold to microsatellite haplotypes of Sclerotinia sclerotiorum

Lehner

Júnior

Vieira

et al. 2016

Sci. agric. (Piracicaba, Braz.)

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“…In the experiment with all the cycles in the greenhouse, around five plants per plot in two main branches of each plant were inoculated. In the inoculations, the most ag- gressive isolate identified in the evaluation by Carneiro et al, (2011) was used.…”

Section: Evaluation Of Resistance To White Mold Growth Habit and Gramentioning

confidence: 99%

“…moderate levels of resistance, equivalent to non-adapted sources used (Carneiro et al, 2011;Carvalho et al, 2013;Gonçalves and Santos, 2010;Silva et al, 2014).…”

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confidence: 99%

Increasing the resistance of common bean to white mold through recurrent selection

Leite

Dias

Souza

et al. 2016

Sci. agric. (Piracicaba, Braz.)

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White mold, caused by Sclerotinea sclerotiorum (Lib.) de Bary is one of the most important diseases of the common bean (Phaseolus vulgaris L.) worldwide. Physiological resistance and traits related to disease avoidance such as architecture contribute to field resistance. The aim of this study was to verify the efficiency of recurrent selection in physiological resistance to white mold, "Carioca" grain type and upright habit in common bean. Thirteen common bean lines with partial resistance to white mold were intercrossed by means of a circulant diallel table, and seven recurrent selection cycles were obtained. Of these cycles, progenies of the S 0:1 , S 0:2 and S 0:3 generations of cycles III, IV, V and VI were evaluated. The best (8 to 10) progenies of the seven cycles were also evaluated, in two experiments, one in the greenhouse and one in the field. Lattice and/or randomized block experimental designs were used. The traits evaluated were: resistance to white mold by the straw test method, growth habit and grain type. The most resistant progenies were selected based on the average score of resistance to white mold. Subsequently, they were evaluated with regard to grain type and growth habit. Recurrent selection allowed for genetic progress of about 11 % per year for white mold resistance and about 15 % per year for the plant architecture.There was no gain among cycles for grain type. Progeny selection and recurrent selection were efficient for obtaining progenies with a high level of resistance to white mold with "Carioca" grain type and upright habit.

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New genomic regions associated with white mold resistance in dry bean using a MAGIC population

et al. 2022

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Dry bean (Phaseolus vulgaris L.) production in many regions is threatened by white mold (WM) [Sclerotinia sclerotiorum (Lib.) de Bary]. Seed yield losses can be up to 100% under conditions favorable for the pathogen. The low heritability, polygenic inheritance, and cumbersome screening protocols make it difficult to breed for improved genetic resistance. Some progress in understanding genetic resistance and germplasm improvement has been accomplished, but cultivars with high levels of resistance are yet to be released. A WM multiparent advanced generation inter‐cross (MAGIC) population (n = 1060) was developed to facilitate mapping and breeding efforts. A seedling straw test screening method provided a quick assay to phenotype the population for response to WM isolate 1980. Nineteen MAGIC lines were identified with improved resistance. For genome‐wide association studies (GWAS), the data was transformed into three phenotypic distributions—quantitative, polynomial, and binomial—and coupled with ∼52,000 single‐nucleotide polymorphisms (SNPs). The three phenotypic distributions identified 30 significant genomic intervals [−log10 (P value) ≥ 3.0]. However, across distributions, four new genomic regions as well as two regions previously reported were found to be associated with resistance. Cumulative R2 values were 57% for binomial distribution using 13 genomic intervals, 41% for polynomial using eight intervals, and 40% for quantitative using 11 intervals. New resistant germplasm as well as new genomic regions associated with resistance are now available for further investigation.

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Genetics of common bean resistance to white mold

Abstract: -

Cited by 10 publications

References 19 publications

Reaction of sources of resistance to white mold to microsatellite haplotypes of Sclerotinia sclerotiorum

Reaction of sources of resistance to white mold to microsatellite haplotypes of Sclerotinia sclerotiorum

Increasing the resistance of common bean to white mold through recurrent selection

New genomic regions associated with white mold resistance in dry bean using a MAGIC population

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