ArticleBMC genomics2021
Linkage disequilibrium patterns, population structure and diversity analysis in a worldwide durum wheat collection including Argentinian genotypes.
Article in BMC genomics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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32 citing papers in PubMed, 43 citations in OpenAlex.
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- Genetic control of wheat flour end-use quality and rheology by genome-wide association studies.The plant genome · 2026Article
- Large scale wheat data integration improves genomic prediction accuracy with the potential to facilitate international breeding collaborations.Communications biology · 2026Article
- Natural variation in VrERF088 modulates drought tolerance during mungbean germination.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Lipid Metabolism and Actin Cytoskeleton Regulation Underlie Yield and Disease Resistance in TwoPlants (Basel, Switzerland) · 2025Article
- Genetic diversity and population structure of a core collection of Mediterranean durum wheat accessions using DArTseq markers.BMC genomics · 2025Article
- A chickpea MAGIC population to dissect the genetics of complex traits.The plant genome · 2025Article
- A global assembly of landrace oat (Avena sativa L.) accessions is a discovery resource for adaptive variation, association mapping, and trait deployment.G3 (Bethesda, Md.) · 2025Article
- Genome-wide association analysis identifies seven loci conferring resistance to multiple wheat foliar diseases, including brown and yellow rust resistance originating from Aegilops ventricosa.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Discovering leaf and stripe rust resistance in soft red winter wheat through genome-wide association studies.The plant genome · 2025Article
- Genetic dissection of leaf rust resistance in a diversity panel of tetraploid wheat (Triticum turgidum).BMC plant biology · 2025Article
- Future of durum wheat research and breeding: Insights from early career researchers.The plant genome · 2025Review
- Unraveling the genetic basis of heat tolerance and yield in bread wheat: QTN discovery and Its KASP-assisted validation.BMC plant biology · 2025Article
- Deciphering the genetic basis of grain iron and zinc content in wheat under heat and drought stress using GWAS.PloS one · 2025Article
- Effect of Chromosomal Localization of NGS-Based Markers on Their Applicability for Analyzing Genetic Variation and Population Structure of Hexaploid Triticale.International journal of molecular sciences · 2024Article
- Identifying the physiological traits associated with DNA marker using genome wide association in wheat under heat stress.Scientific reports · 2024Article
- Assessment of genetic structure and trait associations of Watkins wheat landraces under Egyptian field conditions.Frontiers in genetics · 2024Article
- Genetic diversity, linkage disequilibrium, and population structure of tetraploid wheat landraces originating from Europe and Asia.BMC genomics · 2023Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDurum wheat (Triticum turgidum L. ssp. durum Desf. Husn) is the main staple crop used to make pasta products worldwide. Under the current climate change scenarios, genetic variability within a crop plays a crucial role in the successful release of new varieties with high yields and wide crop adaptation. In this study we evaluated a durum wheat collection consisting of 197 genotypes that mainly comprised a historical set of Argentinian germplasm but also included worldwide accessions.
resultsWe assessed the genetic diversity, population structure and linkage disequilibrium (LD) patterns in this collection using a 35 K SNP array. The level of polymorphism was considered, taking account of the frequent and rare allelic variants. A total of 1547 polymorphic SNPs was located within annotated genes. Genetic diversity in the germplasm collection increased slightly from 1915 to 2010. However, a reduction in genetic diversity using SNPs with rare allelic variants was observed after 1979. However, larger numbers of rare private alleles were observed in the 2000-2009 period, indicating that a high reservoir of rare alleles is still present among the recent germplasm in a very low frequency. The percentage of pairwise loci in LD in the durum genome was low (13.4%) in our collection. Overall LD and the high (r
conclusionsOur results suggest that breeding and selection have impacted differently on the A and B genomes, particularly on chromosome 6A and 2A. The collection was structured in five sub-populations and modern Argentinian accessions (cluster Q4) which were clearly differentiated. Our study contributes to the understanding of the complexity of Argentinian durum wheat germplasm and to derive future breeding strategies enhancing the use of genetic diversity in a more efficient and targeted way.
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