Evidence map›Paper›PMID 42277668›Full record

ArticleBMC plant biology2026

Genome-wide association study identifies loci controlling grain yield and protein content in mungbean (Vigna radiata (L.) R. Wilczek var. radiata) using DArTseq SNP markers.

Chiamaka C Obasi, Kwadwo Ofori, Abraham A Ngwuta, Emmanuel A Adjei, Ramakrishnan M Nair, Sunday N Obasi, John S Y Eleblu, Eucharia A Obidiebube, Eugene O Ojua, Joseph I Ulasi and 2 more

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Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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12 authors.

Chiamaka C ObasiDepartment of Crop Science and Horticulture, Nnamdi Azikiwe University, Awka, Nigeria. cc.obasi@unizik.edu.ng.ORCID http://orcid.org/0000-0001-7770-9905
Kwadwo OforiWest Africa Centre for Crop Improvement (WACCI), University of Ghana, Accra, Ghana.
Abraham A NgwutaDepartment of Crop Science and Technology, Federal University of Technology, Owerri, Nigeria.
Emmanuel A AdjeiCSIR-Savanna Agricultural Research Institute, Tamale, Ghana.
Ramakrishnan M NairWorld Vegetable Center, South Asia/Central Asia, Hyderabad, India.
Sunday N ObasiDepartment of Crop and Soil Science, National Open University of Nigeria, Kaduna Campus, Kaduna, Nigeria.
John S Y ElebluWest Africa Centre for Crop Improvement (WACCI), University of Ghana, Accra, Ghana.
Eucharia A ObidiebubeDepartment of Crop Science and Horticulture, Nnamdi Azikiwe University, Awka, Nigeria.
Eugene O OjuaDepartment of Plant Science and Biotechnology, University of Nigeria, Nsukka, Nigeria.
Joseph I UlasiDepartment of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, USA.
Henry OkolieDepartment of Crop Science and Horticulture, Nnamdi Azikiwe University, Awka, Nigeria.
Ya-Ping LinWorld Vegetable Center Headquarters, Tainan, 74151, Taiwan.

Funding

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6 · The paper itself

Abstract

backgroundMungbean (Vigna radiata (L.) R. Wilczek var. radiata) is an important grain legume valued for its high protein content and ability to improve soil fertility through biological nitrogen fixation. Despite its growing importance in tropical agriculture, genetic improvement of yield and protein content remains limited due to insufficient knowledge of the genomic regions controlling these traits. Genome-wide association studies (GWAS) using high-density single nucleotide polymorphism (SNP) markers provide a powerful approach to dissect the genetic architecture of complex traits in crop species. This study aimed to identify genomic loci associated with grain yield and protein content in mungbean using Diversity Arrays Technology sequencing (DArTseq) SNP markers.

resultsA panel of 120 mungbean genotypes was evaluated across four environments (Awka dry season, Awka rainy season, Uyo dry season, and Uyo rainy season), revealing substantial phenotypic variation: grain yield ranged from 24.00 to 7810.90 kg ha

conclusionsThe study reveals the polygenic, environment-dependent genetic architecture of yield (strong G×E) and stable protein content in mungbean, with moderate LD enabling high-resolution mapping. Identified MTAs, distributed across chromosomes, and candidate genes (transcriptional/protein metabolism for protein; hormonal/cellular/energy pathways for yield) provide robust genomic resources for marker-assisted selection (MAS) and breeding high-yielding, nutritionally enhanced varieties adapted to diverse agro-ecologies.

Indexed as

Edible GrainGenome-Wide Association StudyPlant ProteinsPolymorphism, Single NucleotideVignaGenetic MarkersGenotypePhenotypeQuantitative Trait LociGenetic MarkersPlant ProteinsDArTseq SNP markersGenetic diversityGenome-wide association studyMarker-assisted selectionMungbeanProtein contentYield

Identifiers

PMID42277668
PMCPMC13508515

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