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.
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Dagne, K.
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Gedil, M.
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Boukar, O.
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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]
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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
Cowpea covers the largest area of any grain legume in Africa and is especially important in West Africa where Nigeria and Niger alone account for over 75% of the total cowpea production in the world. Despite successes of international and national cowpea improvement research in the development an...
Manda, J.
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Alene, A.
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Hirpa Tufa, A.
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Abdoulaye, Tahirou
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Kamara, A.
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Olufajo, O.
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Boukar, O.
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Manyong, Victor M.
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[Adoption and ex-post impacts of improved cowpea varieties on productivity and net returns in Nigeria]
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Adoption and ex-post impacts of improved cowpea varieties on productivity and net returns in Nigeria
Cowpea, Vigna unguiculata (L.) Walp., is an important grain legume grown in tropical and subtropical regions, primarily Africa. The parasitic weed Striga gesnerioides (Willd.) Vatke is one of the most important constraints to cowpea production. Host plant resistance is the only practical control ...
Boukar, O.
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Kong, L.
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Singh, B.B.
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Murdock, L.
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Ohm, H.W.
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[AFLP and AFLPderived SCAR markers associated with Striga gesnerioides resistance in cowpea]
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AFLP and AFLPderived SCAR markers associated with Striga gesnerioides resistance in cowpea
Flower bud thrips, Megalurothrips sjostedti is the most severe field pest of cowpea that causes massive flower abortion which eventually results to substantial yield reduction in Africa. There is paucity of information on the mode of gene actions controlling inheritance of resistance to flower bu...
Cowpea, an indigenous crop to sub-Saharan Africa, is found mainly in the dry savanna regions along with cereals such as millets and sorghum. Cowpea is grown primarily for human consumption of the grains, which are rich in protein, carbohydrates and contain some minerals. The development and deplo...
Boukar, O.
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Massawe, F.
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Muranaka, S.
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Franco, J.
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Maziya-Dixon, B.B.
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Singh, B.
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Fatokun, C.A.
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[Evaluation of cowpea germplasm lines for protein and mineral concentrations in grains]
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Evaluation of cowpea germplasm lines for protein and mineral concentrations in grains
Multi‐parent advanced generation inter‐cross (MAGIC) populations are an emerging type of resource for dissecting the genetic structure of traits and improving breeding populations. We developed a MAGIC population for cowpea (Vigna unguiculata L. Walp.) from eight founder parents. These founders w...
Huynh, B.L.
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Ehlers, J.D.
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Huang, B.E.
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Muñoz Amatriarin, M.
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Lonardi, S.
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Santos, J.R.P.
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Ndeve, A.
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Batieno, B.J.
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Boukar, O.
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Cisse, N.
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Drabo, I.
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Fatokun, C.A.
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Kusi, F.
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Agyare, R.Y.
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Guo, Y.N.
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Herniter, I.
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Lo, S.
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Wanamaker, S.I.
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Xu, S.
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Close, T.J.
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Roberts, P.A.
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[A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.)]
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A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.)
Cowpea (Vigna unguiculata L. Walp.) is an important cash, food and nutritional security grain legume crop in the semi-arid regions of sub-Saharan Africa. However, its productivity is hampered by several biotic stress factors including numerous insect pests that infest and damage the crop at all i...
Togola, A.
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Boukar, O.
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Belko, N.
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Chamarthi, S.K.
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Fatokun, C.A.
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Tamo, M.
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Oigiangbe, N.
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[Host plant resistance to insect pests of cowpea (Vigna unguiculata L. Walp.): achievements and future prospects]
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Host plant resistance to insect pests of cowpea (Vigna unguiculata L. Walp.): achievements and future prospects
The parasitic weed, Striga gesnerioides, is a major threat to cowpea productivity throughout the savannas of West and Central Africa. The identification of sources of S. gesnerioides resistance and their incorporation into breeding programs would be a beneficial strategy to combat the devastation...
Omoigui, L.O.
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Kamara, A.
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Alunyo, G.I.
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Bello, L.
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Oluoch, M.
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Timko, M.P.
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Boukar, O.
,
[Identification of new sources of resistance to Striga gesnerioides in cowpea Vigna unguiculata accessions]
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Identification of new sources of resistance to Striga gesnerioides in cowpea Vigna unguiculata accessions
Cowpea, Vigna unguiculata (L.), is an important grain legume grown in the tropics where it constitutes a valuable source of protein in the diets of millions of people. Some abiotic and biotic stresses adversely affect its productivity. A review of the genetics, genomics and breeding of cowpea is ...
Boukar, O.
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Belko, N.
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Chamarthi, S.
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Togola, A.
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Batieno, J.
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Owusu, E.
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Haruna, M.
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Diallo, S.
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Umar, M.L.
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Olufajo, O.
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Fatokun, C.A.
,
[Cowpea (Vigna unguiculata): Genetics, genomics and breeding]
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Cowpea (Vigna unguiculata): Genetics, genomics and breeding
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.
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Girma, G.
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Abberton, M.T.
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Gedil, M.
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Unachukwu, N.N.
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Oyatomi, O.
,
Yusuf, M.
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Rabbi, Ismail Y.
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Boukar, O.
,
[Genetic diversity and population structure of a mini-core subset from the world cowpea (Vigna unguiculata (L.) Walp.) germplasm collection]
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Genetic diversity and population structure of a mini-core subset from the world cowpea (Vigna unguiculata (L.) Walp.) germplasm collection