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The extent of genetic diversity and relatedness of cowpea germplasm from East Africa are poorly understood. A set of 13 microsatellites (SSR) and 151 single nucleotide polymorphisms (SNPs) markers were applied to assess the levels of genetic diversity in a sample of 95 accessions of local cowpea ...


Desalegne, B.A.Dagne, K.Gedil, M.Boukar, O.Fatokun, C.A.[Efficiency of SNP and SSR-based analysis of genetic diversity, population structure, and relationships among cowpea (Vigna unguiculata (L.) Walp.) germplasm from east Africa and IITA inbred lines]Efficiency of SNP and SSR-based analysis of genetic diversity, population structure, and relationships among cowpea (Vigna unguiculata (L.) Walp.) germplasm from east Africa and IITA inbred lines

Cross contamination arising from random natural processes and breeding errors is one of the prominent challenges to breeding in many crops including cassava (Manihot esculenta). This study attempts to identify molecular marker tools suitable for verifying the genetic purity of putative progenies ...


Otti, G.Fakoya, A.Andrew, I.Gedil, M.[Development of genomic tools for verification of hybrids and selfed progenies in cassava (Manihot esculenta)]Development of genomic tools for verification of hybrids and selfed progenies in cassava (Manihot esculenta)

The persistent challenge of insufficient food, unbalanced nutrition, and deteriorating natural resources in the most vulnerable nations, characterized by fast population growth, calls for utilization of innovative technologies to curb constraints of crop production. Enhancing genetic gain by usin...


Gedil, M.Ferguson, M.Girma Tessema, G.Gisel, A.Stavolone, L.Rabbi, Ismail Y.[perspectives on the application of next generation sequencing to the improvement of Africa's staple food crops]perspectives on the application of next generation sequencing to the improvement of Africa's staple food crops

Marker-assisted recurrent selection (MARS) is a breeding method used to accumulate favorable alleles that for example confer tolerance to drought in inbred lines from several genomic regions within a single population. A bi-parental cross formed from two parents that combine resistance to Striga ...


Abdulmalik, R.O.Menkir, A.Meseka, S.K.Unachukwu, N.N.Ado, S.G.Olarewaju, J.D.Aba, D.A.Hearne, S.Crossa, J.Gedil, M.[Genetic gains in grain yield of a maize population improved through marker assisted recurrent selection under stress and non-stress conditions in west Africa]Genetic gains in grain yield of a maize population improved through marker assisted recurrent selection under stress and non-stress conditions in west Africa

The objective of marker assisted recurrent selection (MARS) is to increase the frequency of favorable marker alleles in a population before inbred line extraction. This approach was used to improve drought tolerance and grain yield (GY) in a biparental cross of two elite drought tolerant lines. T...


Bankole, F.Menkir, A.Olaoye, G.Crossa, J.Hearne, S.Unachukwu, N.N.Gedil, M.[Genetic gains in yield and yield related traits under drought stress and favorable environments in a maize population improved using marker assisted recurrent selection]Genetic gains in yield and yield related traits under drought stress and favorable environments in a maize population improved using marker assisted recurrent selection

Striga hermonthica and drought are the major stresses limiting maize yields in sub-Saharan Africa. The search for diverse maize lines’ tolerance to drought and resistance to S. hermonthica (DTSTHR) is very crucial for yield improvement in areas affected by the two stresses. Understanding the gene...


Mengesha, W.Menkir, A.Unachukwu, N.N.Meseka, S.K.Farinola, A.Girma Tessema, G.Gedil, M.[Genetic diversity of tropical maize inbred lines combining resistance to Striga hermonthica with drought tolerance using SNP markers]Genetic diversity of tropical maize inbred lines combining resistance to Striga hermonthica with drought tolerance using SNP markers

Distinguishing yam species based on morphological traits is extremely difficult and unreliable, posing a challenge to breeders and genebank curators. Development of a molecular assay based on DNA barcoding can facilitate rapid and accurate identification of important Dioscorea species. To develop...


Girma, G.Spillane, CharlesGedil, M.[DNA barcoding of the main cultivated yams and selected wild species in the genus Dioscorea]DNA barcoding of the main cultivated yams and selected wild species in the genus Dioscorea

Cassava (Manihot esculenta L.) is one of the most important food crops in the tropics, but yields are far below their potential. The gene pool of cassava contains natural genetic diversity relevant to many important breeding goals, but breeding progress has been slow, partly because of insuf-fici...


Rabbi, Ismail Y.Hamblin, M.Gedil, M.Kulakow, P.A.Ferguson, M.Ikpan, A.Ly, D.Jannink, Jean-Luc[Genetic mapping using genotypingbysequencing in the clonally propagated cassava]Genetic mapping using genotypingbysequencing in the clonally propagated cassava

In a bid to fast-track the process of selection of cassava (Manihot esculenta Crantz) genotypes resistant to the cassava mosaic disease (CMD), caused by whitefly-transmitted begomoviruses, a number of molecular markers have been developed to map resistance genes. The simple sequence repeat (SSR) ...


Gedil, M.Otti, G.Enok, L.Kumar, L.[Development and validation of genomic tools for marker-assisted breeding of cassava mosaic disease resistance in cassava (Manihot esculenta)]Development and validation of genomic tools for marker-assisted breeding of cassava mosaic disease resistance in cassava (Manihot esculenta)

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

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