ArticleBMC genomics2022
Genetic architecture of salt tolerance in a Multi-Parent Advanced Generation Inter-Cross (MAGIC) cowpea population.
Article in BMC genomics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 29 citations in OpenAlex.
- Dissecting Salt-Induced growth and physiological responses in blackgram [Vigna mungo (L.) Hepper] via multivariate analysis.BMC plant biology · 2026Article
- Resequencing and phenotyping of the first highly inbred eggplant multiparent population revealHorticulture research · 2025Article
- A panomics-driven framework for the improvement of major food legume crops: advances, challenges, and future prospects.Horticulture research · 2025Article
- Genome-wide association studies dissect the genetic architecture of seed and yield component traits in cowpea (Vigna unguiculata L. Walp).G3 (Bethesda, Md.) · 2025Article
- Salt-Resilient Cowpeas: Early Identification Through Growth Parameters and Gene Expression at Germination Stage.International journal of molecular sciences · 2025Article
- Salinity stress tolerance inFrontiers in plant science · 2025Review
- Genome-Wide Association Study for Seed Yield of Tepary Bean Using Whole-Genome Resequencing.International journal of molecular sciences · 2024Article
- The pattern of genetic variability in a core collection of 2,021 cowpea accessions.G3 (Bethesda, Md.) · 2024Article
- Genetic Dissection of Diverse Seed Coat Patterns in Cowpea through a Comprehensive GWAS Approach.Plants (Basel, Switzerland) · 2024Article
- Crop Landraces and Indigenous Varieties: A Valuable Source of Genes for Plant Breeding.Plants (Basel, Switzerland) · 2024Review
- Cowpea Constraints and Breeding in Europe.Plants (Basel, Switzerland) · 2023Review
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Authors and funding
12 authors at 4 institutions in 2 countries.
Funding
Abstract
backgroundPrevious reports have shown that soil salinity is a growing threat to cowpea production, and thus the need for breeding salt-tolerant cowpea cultivars. A total of 234 Multi-Parent Advanced Generation Inter-Cross (MAGIC) lines along with their 8 founders were evaluated for salt tolerance under greenhouse conditions. The objectives of this study were to evaluate salt tolerance in a multi-parent advanced generation inter-cross (MAGIC) cowpea population, to identify single nucleotide polymorphism (SNP) markers associated with salt tolerance, and to assess the accuracy of genomic selection (GS) in predicting salt tolerance, and to explore possible epistatic interactions affecting salt tolerance in cowpea. Phenotyping was validated through the use of salt-tolerant and salt-susceptible controls that were previously reported. Genome-wide association study (GWAS) was conducted using a total of 32,047 filtered SNPs. The epistatic interaction analysis was conducted using the PLINK platform.
resultsResults indicated that: (1) large variation in traits evaluated for salt tolerance was identified among the MAGIC lines, (2) a total of 7, 2, 18, 18, 3, 2, 5, 1, and 23 were associated with number of dead plants, salt injury score, leaf SPAD chlorophyll under salt treatment, relative tolerance index for leaf SPAD chlorophyll, fresh leaf biomass under salt treatment, relative tolerance index for fresh leaf biomass, relative tolerance index for fresh stem biomass, relative tolerance index for the total above-ground fresh biomass, and relative tolerance index for plant height, respectively, with overlapping SNP markers between traits, (3) candidate genes encoding for proteins involved in ion transport such as Na+/Ca2+ K+ independent exchanger and H+/oligopeptide symporter were identified, and (4) epistatic interactions were identified.
conclusionsThese results will have direct applications in breeding programs aiming at improving salt tolerance in cowpea through marker-assisted selection. To the best of our knowledge, this study was one of the earliest reports using a MAGIC population to investigate the genetic architecture of salt tolerance in cowpea.
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