common bean

Identification of QTLs of resistance to white mold in common bean from multiple markers by using Bayesian analysis

L. A. C. Lara, Santos, J. B., Balestre, M., Lima, I. A., Pamplona, A. K. A., Veloso, J. S., and Silva, P. H., Identification of QTLs of resistance to white mold in common bean from multiple markers by using Bayesian analysis, vol. 14, pp. 1124-1135, 2015.

In this study, we identified simple sequence repeat, ampli­fied fragment length polymorphism, and sequence-related amplified poly­morphism markers linked to quantitative trait loci (QTLs) for resistance to white mold disease in common bean progenies derived from a cross between lines CNFC 9506 and RP-2, evaluated using the oxalic acid test and using Bayesian analysis. DNA was extracted from 186 F2 plants and their parental lines for molecular analysis.

Aggressiveness of Pseudocercospora griseola strains in common bean genotypes and implications for genetic improvement

R. Pereira, Souza, E. A., Barcelos, Q. L., Abreu, A. F. B., and Librelon, S. S., Aggressiveness of Pseudocercospora griseola strains in common bean genotypes and implications for genetic improvement, vol. 14, pp. 5044-5053, 2015.

The fungus Pseudocercospora griseola, the causal agent of angular leaf spot in the common bean (Phaseolus vulgaris L.), exhibits a broad pathogenic variability that complicates the development of resistant cultivars. For breeding programs to successfully obtain common bean cultivars with durable resistance, knowing the aggressiveness of different strains, as well as the mechanisms of genetic resistance, is important.

Sexual recombination in Colletotrichum lindemuthianum occurs on a fine scale

E. A. Souza, Camargo, Jr., O. A., and Pinto, J. M. A., Sexual recombination in Colletotrichum lindemuthianum occurs on a fine scale, vol. 9, pp. 1759-1769, 2010.

Glomerella cingulata f. sp phaseoli is the sexual phase of the fungus Colletotrichum lindemuthianum, the causal agent of common bean anthracnose. This fungus is of great concern, because it causes large economic losses in common bean crops. RAPD markers of five populations of G. cingulata f. sp phaseoli from two Brazilian states were analyzed to determine if this population possesses the sexual reproductive potential to generate the genetic variation that is observed in this phytopathogen.

Vegetative compatibility and genetic analysis of Colletotrichum lindemuthianum isolates from Brazil

Q. L. Barcelos, Souza, E. A., and Silva, K. J. Damasceno, Vegetative compatibility and genetic analysis of Colletotrichum lindemuthianum isolates from Brazil, vol. 10, pp. 230-242, 2011.

The causal agent of common bean anthracnose, Colletotrichum lindemuthianum, has considerable genetic and pathogenic variability, which makes the development of resistant cultivars difficult. We examined variability within and between Brazilian pathotypes of C. lindemuthianum through the identification of vegetative compatibility groups (VCGs) and by RAPD analysis. Two hundred and ninety-five nit mutants were obtained from 47 isolates of various pathotypes of the fungus collected from different regions, host cultivars and years.

Genetic mapping of a new set of microsatellite markers in a reference common bean (Phaseolus vulgaris) population BAT93 x Jalo EEP558

M. C. M. Grisi, Blair, M. W., Gepts, P., Brondani, C., Pereira, P. A. A., and Brondan, R. P. V., Genetic mapping of a new set of microsatellite markers in a reference common bean (Phaseolus vulgaris) population BAT93 x Jalo EEP558, vol. 6, pp. 691-706, 2007.

The present study describes a new set of 61 polymorphic microsatellite markers for beans and the construction of a genetic map using the BAT93 x Jalo EEP558 (BJ) population for the purpose of developing a reference linkage map for common bean (Phaseolus vulgaris). The main objectives were to integrate new microsatellites on the existing framework map of the BJ population, and to develop the first linkage map for the BJ population based exclusively on microsatellites.

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