Contributions of the Bean/Cowpea CRSP to management of bean diseases

Coyne, Dermot P.; Steadman, J.R.; Godoy‐Lutz, G.; Gilbertson, R. L.; Arnaud-Santana, E.; Beaver, James S.; Myers, James R.

doi:10.1016/s0378-4290(03)00035-2

Cited by 44 publications

(25 citation statements)

References 42 publications

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“…The degree of virulence among isolates of some fungal pathogens can also vary between regions and over time. This has been observed for many bean pathogens such as rust Sandlin et al (1999); Mmbaga et al 1996a), anthracnose (Ansari et al 2004;Balardin et al 1997), web blight caused by Thanatephorus cucumeris (Godoy-Lutz et al 2003), angular leaf spot caused by Phaeoisariopsis griseola (Mahuku et al 2002;Pastor-Corrales et al 1998) and ashy stem blight caused by Macrophomina phaseolina (Tassi) Goid. (Reyes-Franco et al 2006).…”

Section: A Few Examples Of Conventional Bean Breeding Achievements Inmentioning

confidence: 73%

“…Disease and pests can cause significant losses to common bean production (Schwartz et al 2005;Coyne et al 2003;Wortman et al 1998). Control of these biotic constraints using agrochemicals can increase production costs and create the potential for contamination of the environment.…”

Section: Resistance To Biotic Constraintsmentioning

confidence: 99%

“…The mobile nurseries are returned to the greenhouse where the disease reactions are noted after infection has developed. Molecular techniques have been used successfully to describe the genetic variability of pathogen populations of many bean diseases (Balardin et al 1997;Ansari et al 2004;Pastor-Corrales et al 1998;Mahuku et al 2002;Godoy-Lutz et al 2003;Araya et al 2004). However, more research needs to be conducted in the development of molecular markers to detect specific virulence patterns in plant pathogens.…”

Section: Transgenic Beansmentioning

confidence: 99%

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Achievements and limitations of contemporary common bean breeding using conventional and molecular approaches

Beaver

Osorno

2009

Euphytica

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Common bean (Phaseolus vulgaris L.) improvement programs have been successful using conventional breeding methods to accomplish a wide array of important objectives. Specific achievements include the extension of range of adaptation of the crop, the development of cultivars with enhanced levels of disease and pest resistance and breeding lines that possess greater tolerance to drought. The most effective breeding method depends on the expression and inheritance of the trait to be selected and the target environment. Many bean improvement programs use molecular markers to facilitate cultivar development. In fact, several recent germplasm releases have used molecular markers to introgress and or pyramid major genes and QTL for disease resistance. Related species (P. coccineus and P. acultifolius) via interspecific hybridizations remain an important albeit long-term source for resistance to economically important diseases. Slow progress has been made in the improvement of traits such as adaptation to low soil fertility and tolerance to high levels of soluble Al in the soil using conventional breeding methods. The inability to directly measure root traits and the importance of genotype 9 environment interaction complicate the selection of these traits. In addition, symbiotic relationships with Rhizobium and mycorrhiza need to be taken into consideration when selecting for enhanced biological N fixation and greater or more efficient acquisition of soil P. Genomic examination of complex traits such as these should help bean breeders devise more effective selection strategies. As integration of genomics in plant breeding advances, the challenge will be to develop molecular tools that also benefit breeding programs in developing countries. Transgenic breeding methods for bean improvement are not well defined, nor efficient, as beans are recalcitrant to regeneration from cell cultures. Moreover, if issues related to consumer acceptance of GMOs cannot be resolved, traits such as herbicide tolerance in transgenic bean cultivars which would help farmers reduce production costs and decrease soil erosion will remain unrealized.

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Section: A Few Examples Of Conventional Bean Breeding Achievements Inmentioning

confidence: 73%

Section: Resistance To Biotic Constraintsmentioning

confidence: 99%

Section: Transgenic Beansmentioning

confidence: 99%

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Achievements and limitations of contemporary common bean breeding using conventional and molecular approaches

Beaver

Osorno

2009

Euphytica

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“…Bean diseases are the principal causes of low yield (Coyne et al, 2003), particularly those caused by fungi such as anthracnose, white mold, angular leaf spot, rust, and fusarium wilt. The use of resistant cultivars is one of the most efficient strategies to control these diseases (Miklas et al, 2006).…”

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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“…Among the numerous bean diseases, common bacterial blight (CBB) is one of the most economically important and widespread and is a major constraint to the realization of high yields all over the world (Opio et al 1993;Coyne et al 2003).…”

mentioning

confidence: 99%

Occurrence of Xanthomonas axonopodis pv. phaseoli, the causal agent of common bacterial blight disease, on seeds of common bean (Phaseolus vulgaris L.) in upper Egypt

2010

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Common bean seed lots collected from different seed dealers and Malawii agriculture station were screened for the presence of Xanthomonas axonopodis pv. phaseoli. In the laboratory the pathogen was isolated following the routine laboratory assay method, i.e. direct plating method using yeast extract-dextrose-calcium carbonate agar medium (YDC). Yellow, convex, mucoid colonies of Xanthomonas were consistently isolated on YDC from seed samples. The presumptive pathogen was confirmed by isolation on semiselective medium, such as mTBM and MD5A. Further, the pathogen was confirmed by biochemical, physiological and, finally, the pathogenicity tests. Five samples out of seven were positive for Xanthomonas. The isolates were found to cause common blight of 3-week-old common bean plants by 7 d after inoculation. Bacteria with the same characteristics as those inoculated were re-isolated from the infected plants.

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Contributions of the Bean/Cowpea CRSP to management of bean diseases

Cited by 44 publications

References 42 publications

Achievements and limitations of contemporary common bean breeding using conventional and molecular approaches

Achievements and limitations of contemporary common bean breeding using conventional and molecular approaches

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

Occurrence of Xanthomonas axonopodis pv. phaseoli, the causal agent of common bacterial blight disease, on seeds of common bean (Phaseolus vulgaris L.) in upper Egypt

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