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Maize production in West and Central Africa (WCA) is constrained by a wide range of interacting stresses that keep productivity below potential yields. Among the many problems afflicting maize production in WCA, drought, foliar diseases, and parasitic weeds are the most critical. Several decades ...


Gedil, M.Menkir, A.[An integrated molecular and conventional breeding scheme for enhancing genetic gain in maize in Africa]An integrated molecular and conventional breeding scheme for enhancing genetic gain in maize in Africa

The study aimed at examining the associations between yield and other traits under drought stress and non-stress conditions. A total of 150 MARS testcrosses were evaluated under both conditions at the International Institute of Tropical Agriculture substation for two years under during the dry se...


Bankole, F.Menkir, A.Olaoye, G.Olakojo, O.Gedil, M.[Association studies between grain yield and agronomic traits of a MARS maize (Zea mays L.) population under drought and non-stress condition]Association studies between grain yield and agronomic traits of a MARS maize (Zea mays L.) population under drought and non-stress condition

Low soil nitrogen (low-N) level is responsible for yield reduction in maize (Zea mays L.) fields in sub-Saharan Africa. A clear understanding of the genetic diversity among early generation inbred lines selected from various elite low-N- tolerant populations offers an opportunity to obtain lines ...


Ajala, S.O.Olayiwola, M.O.Ilesanmi, O.J.Gedil, M.Job, A.O.Olaniyan, A.B.[Assessment of genetic diversity among low-nitrogen-tolerant early generation maize inbred lines using SNP markers]Assessment of genetic diversity among low-nitrogen-tolerant early generation maize inbred lines using SNP markers

Cowpea is a multipurpose pulse crop grown by poor farmers in marginal and drought prone areas of Ethiopia. Information on the extent of genetic variation in cowpea genotypes is crucial to identify diverse genotypes for crop improvement and for efficient utilization of the existing genetic resourc...


Walle, T.Mekbib, F.Amsalu, B.Gedil, M.[Genetic diversity of Ethiopian cowpea [Vigna unguiculata (L) Walp] genotypes using multivariate analyses]Genetic diversity of Ethiopian cowpea [Vigna unguiculata (L) Walp] genotypes using multivariate analyses

The high cost and supply shortage of seed yam propagules for planting are major constraints in yam production. In the water yam (Dioscorea alata L.), aerial tubers have potential as alternative sources of planting material. In this study, we investigated morphological, molecular and ploidy variat...


Tessema, G.Gedil, M.Spillane, Charles[Morphological, SSR and ploidy analysis of water yam (Dioscorea alata L.) accessions for utilization of aerial tubers as planting materials]Morphological, SSR and ploidy analysis of water yam (Dioscorea alata L.) accessions for utilization of aerial tubers as planting materials

Cassava mosaic disease (CMD), caused by different species of cassava mosaic geminiviruses (CMGs), is themost important disease of cassava in Africa and the Indian sub-continent. The cultivated cassava speciesis protected from CMD by polygenic resistance introgressed from the wild species Manihot ...


Rabbi, Ismail Y.Hamblin, M.Kumar, P.L.Gedil, M.Ikpan, A.Jannink, Jean-LucKulakow, P.A.[High-resolution mapping of resistance to cassava mosaic geminiviruses in cassava using genotypingbysequencing and its implications for breeding]High-resolution mapping of resistance to cassava mosaic geminiviruses in cassava using genotypingbysequencing and its implications for breeding

Key message Genotyping by sequencing (GBS) is used to understand the origin and domestication of guinea yams, including the contribution of wild relatives and polyploidy events to the cultivated guinea yams. Abstract Patterns of genetic diversity within and between two cultivated ...


Girma, G.Hyma, K.E.Asiedu, RobertMitchell, S.E.Gedil, M.Spillane, Charles[Next generation sequencing based genotyping, cytometry and phenotyping for understanding diversity and evolution of guinea yams]Next generation sequencing based genotyping, cytometry and phenotyping for understanding diversity and evolution of guinea yams

Badu-Apraku, B.Gedil, M.Fakorede, M.A.B.Akinwale, R.Fasanmade, Y.Annor, B.Talabi, A.O.Oyekunle, M.Akaogu, I.C.Aderounmu, M.[Gene action and heterotic groups of early white quality protein maize inbreds under multiple stress environments]Gene action and heterotic groups of early white quality protein maize inbreds under multiple stress environments

Micronutrient deficiency, also known as “hidden hunger,” is an increasingly serious global challenge to humankind. Among the mineral elements, Fe (Iron) and Zn (Zinc) have earned recognition as micronutrients of outstanding and diverse biological relevance, as well as of clinical importance to gl...


García Oliveira, A.L.Chander, S.Ortiz, R.Menkir, A.Gedil, M.[Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals]Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals

The International Institute of Tropical Agriculture maintains the world’s largest collection of cowpea germplasm of over 15,000 accessions. A sub-set of 298 lines from the loosely composed mini core collection of 370 landraces were genotyped based on genotyping by sequencing (GBS). Ward’s minimum...


Fatokun, C.Girma, G.Abberton, M.T.Gedil, M.Unachukwu, N.N.Oyatomi, O.Yusuf, M.Rabbi, Ismail Y.Boukar, O.[Genetic diversity and population structure of a mini-core subset from the world cowpea (Vigna unguiculata (L.) Walp.) germplasm collection]Genetic diversity and population structure of a mini-core subset from the world cowpea (Vigna unguiculata (L.) Walp.) germplasm collection

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