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Nutritionally enhanced beans (NEB) with more Fe and Zn than conventional beans (CB) and nutritionally enhanced maize (NEM) with more tryptophan and lysine than conventional maize (CM) were developed as part of a crop-biofortification strategy to improve human nutrition. Proxy measures were used t...


Pachón, HelenaOrtiz, D.A.Araújo, CBlair, Matthew W.Restrepo, J.[Iron, zinc, and protein bioavailability proxy measures of meals prepared with nutritionally enhanced beans and maize]Iron, zinc, and protein bioavailability proxy measures of meals prepared with nutritionally enhanced beans and maize

El mejoramiento del fríjol en Colombia ha producido un amplio número de variedades para diferentes zonas agroecológicas y con diferentes rangos de adaptación. Los objetivos de esta investigación fueron determinar la calidad nutricional del fríjol en Colombia en cuanto al contenido de hierro y cin...


Astudillo, CarolinaBlair, Matthew W.[Contenido de hierro y cinc en la semilla y su respuesta a nivel de fertilización con fósforo en 40 variedades de frijol colombianas = Seed iron and zinc content and their response to phosphorus fertilization in 40 colombian bean varieties]Contenido de hierro y cinc en la semilla y su respuesta a nivel de fertilización con fósforo en 40 variedades de frijol colombianas = Seed iron and zinc content and their response to phosphorus fertilization in 40 colombian bean varieties

Se utilizó la información generada por 29 microsatélites en 63 accesiones del acervo andino de P. vulgaris para elaborar agrupamientos y calcular índices de prevalencia. Las accesiones formaron grupos que correspondieron a las razas Nueva Granada, Chile y Perú. Se determinó la existencia de notor...


Blair, Matthew W.Díaz, J.M.Duque E., Myriam CristinaHidalgo, R.[Evidencia molecular de diferenciación genética e introgresión entre razas de frijol común del acervo andino = Molecular evidence for race structure and introgression among Andean races of common bean]Evidencia molecular de diferenciación genética e introgresión entre razas de frijol común del acervo andino = Molecular evidence for race structure and introgression among Andean races of common bean

Background: An interesting seed protein family with a role in preventing insect herbivory is the multi-gene, APA family encoding the ?-amylase inhibitor, phytohemagglutinin and arcelin proteins of common bean (Phaseolus vulgaris). Variability for this gene family exists and has been exploited to ...


Blair, Matthew W.Prieto, SDíaz, Lucy MilenaBuendía Castellanos, Hector F.Cardona Mejía, César[Linkage disequilibrium at the APA insecticidal seed protein locus of common bean (Phaseolus vulgaris L.)]Linkage disequilibrium at the APA insecticidal seed protein locus of common bean (Phaseolus vulgaris L.)
Caldas, GVBlair, Matthew W.[Inheritance of seed condensed tannins and their relationship with seed-coat color and pattern genes in common bean (Phaseolus vulgaris L.)]Inheritance of seed condensed tannins and their relationship with seed-coat color and pattern genes in common bean (Phaseolus vulgaris L.)

Micronutrients are essential elements needed in small amounts for adequate human nutrition and include the elements iron and zinc. Both of these minerals are essential to human well-being and an adequate supply of iron and zinc help to prevent iron deficiency anemia and zinc deficiency, two preva...


Blair, Matthew W.Astudillo, CarolinaGrusak, M.A.Graham, RBeebe, Stephen E.[Inheritance of seed iron and zinc concentrations in common bean (Phaseolus vulgaris L.)]Inheritance of seed iron and zinc concentrations in common bean (Phaseolus vulgaris L.)
Beebe, Stephen E.Rao, Idupulapati M.Blair, Matthew W.Acosta Gallegos, Jorge Alberto[Phenotyping common beans for adaptation to drought]Phenotyping common beans for adaptation to drought

Climbing common bean (Phaseolus vulgaris L.) genotypes have among the highest yield potential of all accessions found in the species. Genetic improvement of climbing beans would benefit from an understanding of the inheritance of climbing capacity (made up of plant height [PH] and internode lengt...


Checa Coral, Oscar E.Ceballos, H.Blair, Matthew W.[Generation means analysis of climbing ability in common bean (Phaseolus vulgaris L.)]Generation means analysis of climbing ability in common bean (Phaseolus vulgaris L.)

Tolerance to low P soils is a desirable trait in common bean (Phaseolus vulgaris L.) cultivars grown in acid-weathered soils. Genetic variability in response to P-deficient soils exists in the Andean gene pool. G19833, a low P–tolerant indeterminate Andean landrace, has been evaluated for quantit...


Cichy, Karen AnnBlair, Matthew W.Galeano Mendoza, CHSnapp, Sieglinde S.Kelly, James D.[QTL analysis of root architecture traits and low phosphorus tolerance in an andean bean population]QTL analysis of root architecture traits and low phosphorus tolerance in an andean bean population

In many low input agricultural systems, phosphorus (P) is one of the most limiting mineral nutrients for plant production. Although applying P fertilizer, if available, is the most performing practice, this should be accompanied by other measures. The use of genetically enhanced plants with impro...


Ramaekers, LRemans, RRao, Idupulapati M.Blair, Matthew W.Vanderleyden, J[Strategies for improving phosphorus acquisition efficiency of crop plants]Strategies for improving phosphorus acquisition efficiency of crop plants

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