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dc.contributor.authorEhlers, J.D.en_US
dc.contributor.authorDiop, N.N.en_US
dc.contributor.authorOusmane, B.en_US
dc.contributor.authorMuranaka, S.en_US
dc.contributor.authorWanamaker, S.en_US
dc.contributor.authorIssa, D.en_US
dc.contributor.authorMuchero, W.en_US
dc.contributor.authorPottorff, M.en_US
dc.contributor.authorCisse, N.en_US
dc.contributor.authorRoberts, P.A.en_US
dc.contributor.authorClose, T.J.en_US
dc.date.accessioned2018-01-16T12:03:29Zen_US
dc.date.available2018-01-16T12:03:29Zen_US
dc.date.issued2012-9en_US
dc.identifier.citationEhlers, J.D., Diop, N.N., Ousmane, B., Muranaka, S., Wanamaker, S., Issa, D., ... & Close, T.J. (2012). Modern approaches for cowpea breeding: how high throughput genotyping and a high density map change everything. In: Innovative research along the cowpea value chain: proceedings of the Fifth World Cowpea Conference on Improving livelihoods in the cowpea value chain through advancement in science, (p. 5-18), IITA, 27 Sept. to 1 Oct. 2010, Ibadan: International Institute of Tropical Agriculture.en_US
dc.identifier.urihttps://hdl.handle.net/10568/90311en_US
dc.description.abstractThe genomics revolution has enabled rapid advances in genotyping capabilities and construction of high-density genetic linkage maps that enable new plant breeding strategies which have the potential to expedite delivery of improved crop varieties. These breeding strategies utilize molecular marker information at hundreds to thousands of points in the genome, encompassing selection for multiple traits and/or multigenic traits. This chapter summarizes the opportunities and challenges for the cowpea breeding community in adopting modern breeding given the recent development of enabling genomic resources. These resources include high-throughput SNP genotyping platforms, high-density consensus genetic map with more than 1000 markers, and QTL(s) linked to important biotic and abiotic resistance traits, including resistance to foliar and flower thrips, Fusarium wilt, root-knot nematode, bacterial blight, ashy stem blight (Macrophomina), Striga, and components of drought tolerance. Initial work in evaluating and optimizing marker-assisted backcross (MABC), marker-assisted pedigree breeding (MAPB), and marker-assisted recurrent selection (MARS) in cowpea breeding is described. We also report on the successful completion of tests evaluating the feasibility of outsourced SNP genotyping by African NARS breeders. Cost of genotyping, while much reduced compared to the recent past, is still a major constraint to widespread adoption of modern breeding by developing country NARS. High throughput precision phenotyping methods are needed to properly complement the recent advances in genomic resources. New resources and tools to help overcome these challenges have recently become available to breeders within the cowpea community, particularly in the areas of improving information management capability, decision making tools for marker-assisted breeding, and experimental design for precision phenotyping. Comprehensive training of breeders in the use of these tools is urgently needed.en_US
dc.description.sponsorshipCGIAR Generation Challenge Programen_US
dc.description.sponsorshipUnited States Agency for International Developmenten_US
dc.format.extent05-018en_US
dc.language.isoenen_US
dc.subjectGENOMIC RESOURCESen_US
dc.subjectCOWPEA BREEDINGen_US
dc.subjectGENOTYPINGen_US
dc.subjectMARKER-ASSISTEDen_US
dc.subjectPHENOTYPINGen_US
dc.subjectROOT-KNOT NEMATODEen_US
dc.subjectMOLECULAR MARKERSen_US
dc.titleModern approaches for cowpea breeding: how highthroughput genotyping and a highdensity map change everythingen_US
dc.typeConference Proceedingsen_US
cg.authorship.typesCGIAR and developing country instituteen_US
cg.subject.iitaCOWPEAen_US
cg.subject.iitaPLANT BREEDINGen_US
cg.subject.iitaGENETIC IMPROVEMENTen_US
cg.subject.iitaCLIMATE CHANGEen_US
cg.subject.iitaDISEASE CONTROLen_US
cg.subject.iitaPLANT GENETIC RESOURCESen_US
cg.subject.iitaPESTS OF PLANTSen_US
cg.identifier.statusLimited Accessen_US
cg.contributor.affiliationUniversity of Californiaen_US
cg.contributor.affiliationInternational Institute of Tropical Agricultureen_US
cg.contributor.affiliationInstitut de l'Environnement et de Recherches Agricoles, Burkina Fasoen_US
cg.contributor.affiliationInstitut Sénégalais de Recherches Agricolesen_US
cg.contributor.affiliationOak Ridge National Laboratory, USAen_US
cg.targetaudienceSCIENTISTSen_US
cg.coverage.regionACPen_US
cg.coverage.regionNORTH AMERICAen_US
cg.coverage.regionAFRICAen_US
cg.coverage.regionCENTRAL AMERICAen_US
cg.coverage.regionWEST AFRICAen_US
cg.coverage.countryUNITED STATESen_US
cg.coverage.countryNIGERIAen_US
cg.coverage.countryBURKINA FASOen_US
cg.coverage.countrySENEGALen_US
cg.contributor.crpGrain Legumesen_US


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