Q&A: Methods for estimating genetic gain in sub-Saharan Africa and achieving improved gains

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cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.affiliationInternational Maize and Wheat Improvement Centeren
cg.contributor.donorCGIAR Trust Funden
cg.contributor.initiativeAccelerated Breeding
cg.creator.identifierTrushar Shah: 0000-0002-0091-7981en
cg.identifier.doihttps://doi.org/10.1002/tpg2.20471en
cg.isijournalISI Journalen
cg.issn1940-3372en
cg.issue2en
cg.journalThe Plant Genomeen
cg.reviewStatusPeer Reviewen
cg.volume17en
dc.contributor.authorDieng, Ibnouen
dc.contributor.authorGardunia, Brianen
dc.contributor.authorCovarrubias‐Pazaran, Giovannyen
dc.contributor.authorGemenet, Dorcus C.en
dc.contributor.authorTrognitz, Bodoen
dc.contributor.authorOfodile, Samen
dc.contributor.authorFowobaje, Kayodeen
dc.contributor.authorNtukidem, Solomonen
dc.contributor.authorShah, Trusharen
dc.contributor.authorImoro, Simonen
dc.contributor.authorTripathi, L.en
dc.contributor.authorMushoriwa, Hapsonen
dc.contributor.authorMbabazi, Ruthen
dc.contributor.authorSalvo, Stellaen
dc.contributor.authorDerera, Johnen
dc.date.accessioned2024-09-11T09:26:01Zen
dc.date.available2024-09-11T09:26:01Zen
dc.identifier.urihttps://hdl.handle.net/10568/152128
dc.titleQ&A: Methods for estimating genetic gain in sub-Saharan Africa and achieving improved gainsen
dcterms.abstractRegular measurement of realized genetic gain allows plant breeders to assess and review the effectiveness of their strategies, allocate resources efficiently, and make informed decisions throughout the breeding process. Realized genetic gain estimation requires separating genetic trends from nongenetic trends using the linear mixed model (LMM) on historical multi‐environment trial data. The LMM, accounting for the year effect, experimental designs, and heterogeneous residual variances, estimates best linear unbiased estimators of genotypes and regresses them on their years of origin. An illustrative example of estimating realized genetic gain was provided by analyzing historical data on fresh cassava (Manihot esculenta Crantz) yield in West Africa (https://github.com/Biometrics‐IITA/Estimating‐Realized‐Genetic‐Gain). This approach can serve as a model applicable to other crops and regions. Modernization of breeding programs is necessary to maximize the rate of genetic gain. This can be achieved by adopting genomics to enable faster breeding, accurate selection, and improved traits through genomic selection and gene editing. Tracking operational costs, establishing robust, digitalized data management and analytics systems, and developing effective varietal selection processes based on customer insights are also crucial for success. Capacity building and collaboration of breeding programs and institutions also play a significant role in accelerating genetic gains.en
dcterms.accessRightsOpen Access
dcterms.available2024-06-26en
dcterms.bibliographicCitationDieng, I., Gardunia, B., Covarrubias–Pazaran, G., Gemenet, D. C., Trognitz, B., Ofodile, S., Fowobaje, K., Ntukidem, S., Shah, T., Imoro, S., Tripathi, L., Mushoriwa, H., Mbabazi, R., Salvo, S., & Derera, J. (2024). Q&A: Methods for estimating genetic gain in sub–Saharan Africa and achieving improved gains. The Plant Genome, 17(2). Portico. https://doi.org/10.1002/tpg2.20471en
dcterms.issued2024-06en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherWileyen
dcterms.subjectsystemsen
dcterms.subjectmanihot esculentaen
dcterms.subjectcropsen
dcterms.subjectcassavaen
dcterms.subjectdataen
dcterms.subjectbreedingen
dcterms.subjectenvironmenten
dcterms.subjectgenotypesen
dcterms.subjectcapacity buildingen
dcterms.subjectinstitutionsen
dcterms.subjectcostsen
dcterms.subjectselectionen
dcterms.subjectstrategiesen
dcterms.subjectmeasurementen
dcterms.subjectresourcesen
dcterms.subjectgenomicsen
dcterms.subjectcollaborationen
dcterms.subjectyielden
dcterms.subjecttrendsen
dcterms.subjectmodelen
dcterms.subjectestimationen
dcterms.subjectgenetic gainen
dcterms.subjectdata managementen
dcterms.subjectmodernizationen
dcterms.subjectprocessesen
dcterms.subjectplanten
dcterms.subjectaccountingen
dcterms.subjectmanihot esculenta crantzen
dcterms.subjectgeneen
dcterms.subjectgene editingen
dcterms.subjectgeneticen
dcterms.subjecttrackingen
dcterms.subjectgenomic selectionen
dcterms.subjectcapacityen
dcterms.subjectplant breedersen
dcterms.subjecttraitsen
dcterms.typeJournal Article

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