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An integrated molecular and conventional breeding scheme for enhancing genetic gain in maize in Africa

dc.contributor.authorGedil, M.
dc.contributor.authorMenkir, A.
dc.date.accessioned2020-08-06T14:47:31Z
dc.date.available2020-08-06T14:47:31Z
dc.date.issued2019
dc.identifier.citationGedil, M. & Menkir, A. (2019). An integrated molecular and conventional breeding scheme for enhancing genetic gain in maize in Africa. Frontiers in Plant Science, 10, 1-17.
dc.identifier.issn1664-462X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/6918
dc.description.abstractMaize 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 of efforts devoted to the genetic improvement of maize have resulted in remarkable genetic gain, leading to increased yields of maize on farmers’ fields. The revolution unfolding in the areas of genomics, bioinformatics, and phenomics is generating innovative tools, resources, and technologies for transforming crop breeding programs. It is envisaged that such tools will be integrated within maize breeding programs, thereby advancing these programs and addressing current and future challenges. Accordingly, the maize improvement program within International Institute of Tropical Agriculture (IITA) is undergoing a process of modernization through the introduction of innovative tools and new schemes that are expected to enhance genetic gains and impact on smallholder farmers in the region. Genomic tools enable genetic dissections of complex traits and promote an understanding of the physiological basis of key agronomic and nutritional quality traits. Marker-aided selection and genome-wide selection schemes are being implemented to accelerate genetic gain relating to yield, resilience, and nutritional quality. Therefore, strategies that effectively combine genotypic information with data from field phenotyping and laboratory-based analysis are currently being optimized. Molecular breeding, guided by methodically defined product profiles tailored to different agroecological zones and conditions of climate change, supported by state-of-the-art decision-making tools, is pivotal for the advancement of modern, genomics-aided maize improvement programs. Accelerated genetic gain, in turn, catalyzes a faster variety replacement rate. It is critical to forge and strengthen partnerships for enhancing the impacts of breeding products on farmers’ livelihood. IITA has well-established channels for delivering its research products/technologies to partner organizations for further testing, multiplication, and dissemination across various countries within the subregion. Capacity building of national agricultural research system (NARS) will facilitate the smooth transfer of technologies and best practices from IITA and its partners.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.description.sponsorshipGovernment of Australia
dc.description.sponsorshipGovernment of Belgium
dc.description.sponsorshipGovernment of Canada
dc.description.sponsorshipGovernment of China
dc.description.sponsorshipGovernment of France
dc.description.sponsorshipGovernment of India
dc.description.sponsorshipGovernment of Japan
dc.description.sponsorshipGovernment of Korea
dc.description.sponsorshipGovernment of Mexico
dc.description.sponsorshipGovernment of the Netherlands
dc.description.sponsorshipGovernment of New Zealand
dc.description.sponsorshipGovernment of Norway
dc.description.sponsorshipGovernment of Sweden
dc.description.sponsorshipGovernment of Switzerland
dc.description.sponsorshipGovernment of the United Kingdom
dc.description.sponsorshipGovernment of the United States of America
dc.description.sponsorshipWorld Bank
dc.format.extent1-17
dc.language.isoen
dc.subjectMaize
dc.subjectHybrids
dc.subjectBreeding
dc.subjectDrought
dc.subjectStriga
dc.subjectGenetic Gain
dc.subjectFoliar Diseases
dc.subjectGenomics
dc.subjectMolecular Genetics
dc.titleAn integrated molecular and conventional breeding scheme for enhancing genetic gain in maize in Africa
dc.typeJournal Article
cg.contributor.crpMaize
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest and Central Africa
cg.coverage.countryBenin (Dahomey)
cg.coverage.countryBurkina Faso (Upper Volta)
cg.coverage.countryCameroon
cg.coverage.countryGhana
cg.coverage.countryMali
cg.coverage.countryNigeria
cg.coverage.countrySenegal
cg.coverage.countryThe Gambia
cg.coverage.countryTogo
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidGEDIL:2019
cg.isijournalISI Journal
cg.authorship.typesCGIAR Single Centre
cg.iitasubjectAgronomy
cg.iitasubjectGenetic Improvement
cg.iitasubjectMaize
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPlant Production
cg.journalFrontiers in Plant Science
cg.notesOpen Access Journal; Published online: 06 Nov 2019
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.3389/fpls.2019.01430
cg.iitaauthor.identifierMelaku Gedil: 0000-0002-6258-6014
cg.iitaauthor.identifierAbebe Menkir: 0000-0002-5907-9177


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