Show simple item record

Genetic progress in cowpea [Vigna unguiculata (L.) Walp.] stemming from breeding modernization efforts at the International Institute of Tropical Agriculture

dc.contributor.authorOngom, P.O.
dc.contributor.authorFatokun, C.
dc.contributor.authorTogola, A.
dc.contributor.authorDieng, I.
dc.contributor.authorSalvo, S.
dc.contributor.authorGardunia, B.
dc.contributor.authorMohammed, S.B.
dc.contributor.authorBoukar, O.
dc.date.accessioned2024-10-17T07:55:27Z
dc.date.available2024-10-17T07:55:27Z
dc.date.issued2024-05-22
dc.identifier.citationOngom, P.O., Fatokun, C., Togola, A., Dieng, I., Salvo, S., Gardunia, B., ... & Boukar, O. (2024). Genetic progress in cowpea [Vigna unguiculata (L.) Walp.] stemming from breeding modernization efforts at the International Institute of Tropical Agriculture. Plant Genome, 17(2): e20462, 1-16.
dc.identifier.issn1940-3372
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8607
dc.description.abstractGenetic gain has been proposed as a quantifiable key performance indicator that can be used to monitor breeding programs’ effectiveness. The cowpea breeding program at the International Institute of Tropical Agriculture (IITA) has developed and released improved varieties in 70 countries globally. To quantify the genetic changes to grain yield and related traits, we exploited IITA cowpea historical multi environment trials (METs) advanced yield trial (AYT) data from 2010 to 2022. The genetic gain assessment targeted short duration (SD), medium duration (MD), and late duration (LD) breeding pipelines. A linear mixed model was used to calculate the best linear unbiased estimates (BLUE). Regressed BLUE of grain yield by year of genotype origin depicted realized genetic gain of 22.75 kg/ha/year (2.65%), 7.91kg/ha/year (0.85%), and 22.82 kg/ha/year (2.51%) for SD, MD, and LD, respectively. No significant gain was realized in 100-seed weight (Hsdwt). We predicted, based on2022 MET data, that recycling the best genotypes at AYT stage would result in grain yield gain of 37.28 kg/ha/year (SD), 28.00 kg/ha/year (MD), and 34.85 kg/ha/year (LD), and Hsdwt gain of 0.48 g/year (SD), 0.68 g/year (MD), and 0.55 g/year (LD).These results demonstrated a positive genetic gain trend for cowpea, indicating that a yield plateau has not yet been reached and that accelerated gain is expected with the recent integration of genomics in the breeding program. Advances in genomics include the development of the reference genome, genotyping platforms, quantitative trait loci mapping of key traits, and active implementation of molecular breeding.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-16
dc.language.isoen
dc.subjectGenetics
dc.subjectBreeding
dc.subjectYields
dc.subjectGrain
dc.subjectAssessment
dc.subjectGenomics
dc.subjectGenotypes
dc.subjectAfrica
dc.subjectCowpeas
dc.titleGenetic progress in cowpea [Vigna unguiculata (L.) Walp.] stemming from breeding modernization efforts at the International Institute of Tropical Agriculture
dc.typeJournal Article
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.crpGrain Legumes
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationInternational Maize and Wheat Improvement Center
cg.contributor.affiliationBayer crop science
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.researchthemePlant Production and Health
cg.identifier.bibtexciteidONGOM:2024b
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectAgronomy
cg.iitasubjectCowpea
cg.iitasubjectFood Security
cg.iitasubjectGrain Legumes
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.journalPlant Genome
cg.notesOpen Access Journal
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.1002/tpg2.20462
cg.iitaauthor.identifierPatrick Ongom: 0000-0002-5303-3602
cg.iitaauthor.identifierChristian Fatokun: 0000-0002-8428-7939
cg.iitaauthor.identifierIbnou Dieng: 0000-0002-1051-9143
cg.iitaauthor.identifierOusmane: 0000-0003-0234-4264
cg.futureupdate.requiredNo
cg.identifier.issue2: e20462
cg.identifier.volume17


Files in this item

Thumbnail
Name:
Genetic progress in cowpea.pdf
Size:
1.163Mb
Format:
PDF
Description:
Journal Article
View/Open

This item appears in the following Collection(s)

Show simple item record