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Introgression from exotic maize (Zea mays L.) into adapted breeding pools can broaden and diversify the genetic base of adapted germplasm. The first objective of this study was to determine the agronomic performance of white maize lines derived from adapted × exotic backcrosses in tropical enviro...


Menkir, A.Ingelbrecht, I.L.The, C.[Testcross performance and diversity analysis of white maize lines derived from backcrosses containing exotic germplasm]Testcross performance and diversity analysis of white maize lines derived from backcrosses containing exotic germplasm

Knowledge of the heterotic responses of elite adapted and exotic maize inbred lines can facilitate their utilization for population improvement and hybrid development. In the present study, a line x tester mating design was used to determine the combining ability of 20 elite drought-tolerant maiz...


Adebayo, A.Menkir, A.Blay, E.Gracen, V.E.Danquah, E.Y.[Performance based grouping of adapted and exotic drought tolerant maize (Zea mays L) inbred lines under stressed and nonstressed conditions]Performance based grouping of adapted and exotic drought tolerant maize (Zea mays L) inbred lines under stressed and nonstressed conditions

Background: Biofortification of staple crops is a cost effective and sustainable approach that can help combatvitamin A and other micronutrient deficiencies in developing countries. PCR -based DNA markers distinguishingalleles of three key genes of maize endosperm carotenoid biosynthesis (PSY1, l...


Azmach, G.Gedil, M.Menkir, A.Spillane, Charles[Markertrait association analysis of functional gene markers for provitamin A levels across diverse tropical yellow maize inbred lines]Markertrait association analysis of functional gene markers for provitamin A levels across diverse tropical yellow maize inbred lines

Two tropical maize composites were subjected to four cycles of reciprocal recurrent selection to develop divergent inbred lines with good combining ability. This study was conducted to examine the extent of genetic diversity, changes in allele composition and genetic structure, of 100 randomly se...


Kolawole, A.O.Menkir, A.Gedil, M.Blay, E.Ofori, K.Kling, J.G.[Genetic divergence in two tropical maize composites after four cycles of reciprocal recurrent selection]Genetic divergence in two tropical maize composites after four cycles of reciprocal recurrent selection

The major mycotoxins studied at the Consultative Group on International Agricultural Re-search (CGIAR) institutes are aflatoxins in maize, groundnut, sorghum and cassava, Fusa-rium toxins in maize, wheat and sorghum, and ochratoxin in cocoa and cashew. Genetic en-hancement (both through plant bre...


Ortiz, R.Ban, T.Bandyopadhyay, RanajitBänziger, MarianneBergvinson, DavidHell, K.James, B.Jeffers, D.Kumar, L.Menkir, A.Murakami, J.Nigam, S.Upadhyaya, Hari D.Waliyar, F.[CGIAR researchfordevelopment program on mycotoxins]CGIAR researchfordevelopment program on mycotoxins

Genotype × environment interactions complicate selection of superior genotypes for narrow and wide adaptation. Eighteen tropically-adapted maize cultivars were evaluated at six locations in Nigeria for 2 yr to (i) identify superior and stable cultivars across environments and (ii) assess relation...


Oyekunle, M.Menkir, A.Mani, H.Olaoye, G.Usman, I.S.Ado, S.G.Abdullahi, U.S.Ahmed, H.O.Hassan, L.B.Abdulmalik, R.O.Abubakar, H.[Stability analysis of maize cultivars adapted to tropical environments using AMMI analysis]Stability analysis of maize cultivars adapted to tropical environments using AMMI analysis
Menkir, A.Pixley, K.Maziya-Dixon, B.B.Gedil, M.[Recent advances in breeding maize for enhanced pro-vitamin A content]Recent advances in breeding maize for enhanced pro-vitamin A content

Adoption of improved maize (Zea mays L.) varieties in the rainforest agro-ecology of Nigeria largely depends on yielding potential and resistance to common foliar diseases. The present study aims at assessing the combining ability of a set of adapted and exotic drought-tolerant maize inbred lines...


Adebayo, M.A.Menkir, A.[Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria]Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria

Aflatoxins, produced by the fungus Aspergillus flavus, contaminate maize grain and threaten human food and feed safety. Plant resistance is considered the best strategy for reducing aflatoxin accumulation. Six maize germplasm lines, TZAR101–TZAR106, were released by the International Institute of...


Brown, R.L.Williams, W.P.Windham, G.L.Menkir, A.Chen, Z.Y.[Evaluation of African-bred maize germplasm lines for resistance to aflatoxin accumulation]Evaluation of African-bred maize germplasm lines for resistance to aflatoxin accumulation

Background: An in vitro digestion and Caco-2 cell model may predict iron bioavailability to humans; however, direct comparisons are lacking. Objective: The objective was to test the differences in iron bioavailability between 2 maize varieties and 2 bean varieties (white beans and colored beans)...


Beiseigel, J.M.Hunt, J.R.Glahn, Raymond P.Welch, R.M.Menkir, A.Maziya-Dixon, B.B.[Iron bioavailability from maize and beans: a comparison of human measurements with Caco-2 cell and algorithm predictions]Iron bioavailability from maize and beans: a comparison of human measurements with Caco-2 cell and algorithm predictions

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