ArticlePloS one2020
DArTSeq SNP-based markers revealed high genetic diversity and structured population in Ethiopian cowpea [Vigna unguiculata (L.) Walp] germplasms.
Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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28 citing papers in PubMed, 66 citations in OpenAlex.
- Scaling up orphan crop research: genebank genetics highlight geographic structure in cultivated cowpea from 10 617 global accessions.The Plant journal : for cell and molecular biology · 2026Article
- Genome-wide assessment of genetic diversity and population structure of Capsicum in Southwestern Colombia using DArTseq markers.PloS one · 2026Article
- Genetic structure analysis and core germplasm construction of Robinia pseudoacacia and its closely related species based on SNP.BMC plant biology · 2025Article
- The genomics of t'ef and finger millet domestication and spread.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- An initial exploration of core collection construction and DNA fingerprinting inFrontiers in plant science · 2025Article
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- Genetic diversity and population structure of soybean (Glycine max (L.) Merril) germplasm.PloS one · 2025Article
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- Genetic diversity and population structure of cowpea mutant collection using SSR and ISSR molecular markers.Scientific reports · 2024Article
- Genetic diversity and population structure of superior shea trees (Vitellaria paradoxa subsp. paradoxa) using SNP markers for the establishment of a core collection in Côte d'Ivoire.BMC plant biology · 2024Article
- Insight into the phylogeny and responses of species from the genus Sergia (Campanulaceae) to the climate changes predicted for the Mountains of Central Asia (a world biodiversity hotspot).BMC plant biology · 2024Article
- Sampling strategies for genotyping common bean (Frontiers in plant science · 2024Article
- A Mid-Density Single-Nucleotide Polymorphism Panel for Molecular Applications in Cowpea (International journal of genomics · 2024Article
- Cowpea genetic diversity, population structure and genome-wide association studies in Malawi: insights for breeding programs.Frontiers in plant science · 2024Article
- Characterization of the Moroccan Barley Germplasm Preserved in the Polish Genebank as a First Step towards Selecting Forms with Increased Drought Tolerance.International journal of molecular sciences · 2023Article
- Article
- Utilizing Genomics to Characterize the Common Oat Gene Pool-The Story of More Than a Century of Polish Breeding.International journal of molecular sciences · 2023Article
- Single nucleotide polymorphism (SNP) markers for genetic diversity and population structure study in Ethiopian barley (Hordeum vulgare L.) germplasm.BMC genomic data · 2023Article
- Genetic Diversity and Population Structure of Cowpea (Plants (Basel, Switzerland) · 2023Article
- Field assessment of yield and its contributing traits in cowpea treated with lower, intermediate, and higher doses of gamma rays and sodium azide.Frontiers in plant science · 2023Article
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Authors and funding
8 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cowpea [Vigna unguiculata (L.) Walp] is one of the important climate-resilient legume crops for food and nutrition security in sub-Saharan Africa. Ethiopia is believed to harbor high cowpea genetic diversity, but this has not yet been efficiently characterized and exploited in breeding. The objective of this study was to evaluate the extent and pattern of genetic diversity in 357 cowpea accestions comprising landraces (87%), breeding lines (11%) and released varieties (2%), using single nucleotide polymorphism markers. The overall gene diversity and heterozygosity were 0.28 and 0.12, respectively. The genetic diversity indices indicated substantial diversity in Ethiopian cowpea landraces. Analysis of molecular variance showed that most of the variation was within in the population (46%) and 44% between individuals, with only 10% of the variation being among populations. Model-based ancestry analysis, the phylogenetic tree, discriminant analysis of principal components and principal coordinate analysis classified the 357 genotypes into three well-differentiated genetic populations. Genotypes from the same region grouped into different clusters, while others from different regions fell into the same cluster. This indicates that differences in regions of origin may not be the main driver determining the genetic diversity in cowpea in Ethiopia. Therefore, differences in sources of origin, as currently distributed in Ethiopia, should not necessarily be used as indices of genetic diversity. Choice of parental lines should rather be based on a systematic assessment of genetic diversity in a specific population. The study also suggested 94 accesstions as core collection which retained 100% of the genetic diversity from the entire collection. This core set represents 26% of the entire collection pinpointing a wide distribution of the diversity within the ethiopian landraces. The outcome of this study provided new insights into the genetic diversity and population structure in Ethiopian cowpea genetic resources for designing effective collection and conservation strategies for efficient utilization in breeding.
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