ArticleScientific reports2018
Genetic diversity and population structure of a mini-core subset from the world cowpea (Vigna unguiculata (L.) Walp.) germplasm collection.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.
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Who cites it
48 citing papers in PubMed.
- 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
- Precision-weighted mixed models identify high-yielding and temporally stable cowpea germplasm across three growing seasons.Frontiers in plant science · 2026Article
- Identification of novel genomic regions associated with yield-related traits in cowpea (Molecular breeding : new strategies in plant improvement · 2025Article
- Genetic diversity and structure of Asian cowpea germplasm.Scientific reports · 2025Article
- Contribution of Range-Wide and Short-Scale Chemical Soil Variation to Local Adaptation in a Tropical Montane Forest Tree.Evolutionary applications · 2025Article
- Genetic Variability and Population Structure of Ethiopian Yams (Ecology and evolution · 2025Article
- Article
- Dual tolerance to soil drought and excess moisture stresses in cowpea genetic resources assessed using multiple indicators.Frontiers in plant science · 2025Article
- Article
- Genetic diversity and population structure of soybean (Glycine max (L.) Merril) germplasm.PloS one · 2025Article
- Discovery and development of single-nucleotide polymorphism markers for resistance toFrontiers in plant science · 2025Article
- Genetic diversity and population structure of cowpea mutant collection using SSR and ISSR molecular markers.Scientific reports · 2024Article
- The pattern of genetic variability in a core collection of 2,021 cowpea accessions.G3 (Bethesda, Md.) · 2024Article
- Genetic progress in cowpea [Vigna unguiculata (L.) Walp.] stemming from breeding modernization efforts at the International Institute of Tropical Agriculture.The plant genome · 2024Article
- Article
- An Integrated Approach for Biofortification of Carotenoids in Cowpea for Human Nutrition and Health.Plants (Basel, Switzerland) · 2024Review
- 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
- Comprehensive genomic analyses of Vigna unguiculata provide insights into population differentiation and the genetic basis of key agricultural traits.Plant biotechnology journal · 2023Article
- Insight into the evolutionary and domesticated history of the most widely cultivated mushroom Agaricus bisporus via mitogenome sequences of 361 global strains.BMC genomics · 2023Article
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The International Institute of Tropical Agriculture maintains the world's largest collection of cowpea germplasm of over 15,000 accessions. A sub-set of 298 lines from the loosely composed mini core collection of 370 landraces were genotyped based on genotyping by sequencing (GBS). Ward's minimum variance hierarchical cluster analysis, model-based ancestry analysis and discriminant analysis of principal component (DAPC) were carried out on this sub-set. Three clusters were identified by the different clustering methods. Principal component analysis further supported the three clusters especially when accessions are scattered along the axes of the first two principal components. The first two principal components explained a total of 22.30% of the variation. Cluster one comprises 115 accessions from the largest number of countries and has the highest gene diversity, heterozygosity and polymorphic information content (PIC) values. Cluster two is made up of 102 accessions, 90 percent of which are from West and Central Africa. Analysis of molecular variance shows that the most variation is among accessions and lowest among clusters. No cluster is made exclusively of accessions from a single country. Based on SNP markers, the sub set of cowpea mini core germplasm collection used in this study encompasses the diversity in the crop.
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