Exploring the genetic diversity and population structure of wheat landrace population conserved at ICARDA genebank

dc.creatorTehseen, M.M.
dc.creatorTonk, F.A.
dc.creatorTosun, M.
dc.creatorIstipliler, D.
dc.creatorAmri, A.
dc.creatorSansaloni, C.
dc.creatorKurtulus, E.
dc.creatorMubarik, M.S.
dc.creatorNazari, K.
dc.date2022-11-11T01:10:13Z
dc.date2022-11-11T01:10:13Z
dc.date2022
dc.date.accessioned2023-07-17T20:09:41Z
dc.date.available2023-07-17T20:09:41Z
dc.identifierhttps://hdl.handle.net/10883/22251
dc.identifier10.3389/fgene.2022.900572
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7514006
dc.descriptionLandraces are considered a valuable source of potential genetic diversity that could be used in the selection process in any plant breeding program. Here, we assembled a population of 600 bread wheat landraces collected from eight different countries, conserved at the ICARDA's genebank, and evaluated the genetic diversity and the population structure of the landraces using single nucleotide polymorphism (SNP) markers. A total of 11,830 high-quality SNPs distributed across the genomes A (40.5%), B (45.9%), and D (13.6%) were used for the final analysis. The population structure analysis was evaluated using the model-based method (STRUCTURE) and distance-based methods [discriminant analysis of principal components (DAPC) and principal component analysis (PCA)]. The STRUCTURE method grouped the landraces into two major clusters, with the landraces from Syria and Turkey forming two clusters with high proportions of admixture, whereas the DAPC and PCA analysis grouped the population into three subpopulations mostly according to the geographical information of the landraces, i.e., Syria, Iran, and Turkey with admixture. The analysis of molecular variance revealed that the majority of the variation was due to genetic differences within the populations as compared with between subpopulations, and it was the same for both the cluster-based and distance-based methods. Genetic distance analysis was also studied to estimate the differences between the landraces from different countries, and it was observed that the maximum genetic distance (0.389) was between the landraces from Spain and Palestine, whereas the minimum genetic distance (0.013) was observed between the landraces from Syria and Turkey. It was concluded from the study that the model-based methods (DAPC and PCA) could dissect the population structure more precisely when compared with the STRUCTURE method. The population structure and genetic diversity analysis of the bread wheat landraces presented here highlight the complex genetic architecture of the landraces native to the Fertile Crescent region. The results of this study provide useful information for the genetic improvement of hexaploid wheat and facilitate the use of landraces in wheat breeding programs.
dc.languageEnglish
dc.publisherFrontiers Media S.A.
dc.relationhttps://figshare.com/collections/Exploring_the_Genetic_Diversity_and_Population_Structure_of_Wheat_Landrace_Population_Conserved_at_ICARDA_Genebank/6046661
dc.relationEnvironmental health & biodiversity
dc.relationGenebanks
dc.relationGenetic Innovation
dc.relationEge University
dc.relationInternational Center for Agricultural Research in the Dry Areas
dc.relationInternational Maize and Wheat Improvement Center
dc.relationUniversity of Narowal
dc.relationhttps://hdl.handle.net/10568/127058
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source13
dc.source1664-8021
dc.sourceFrontiers in Genetics
dc.source900572
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectWheat Landraces
dc.subjectGenetic Diversity
dc.subjectSNP Markers
dc.subjectAnalysis of Molecular Variance
dc.subjectAMOVA
dc.subjectBREEDING
dc.subjectDISCRIMINANT ANALYSIS
dc.subjectGENETIC VARIATION
dc.subjectGENETIC DISTANCE
dc.subjectGENETIC IMPROVEMENT
dc.subjectGENETIC MARKERS
dc.subjectHEXAPLOIDY
dc.subjectLANDRACES
dc.subjectPOPULATION STRUCTURE
dc.subjectSINGLE NUCLEOTIDE POLYMORPHISM
dc.subjectTRITICUM AESTIVUM
dc.subjectWHEAT
dc.titleExploring the genetic diversity and population structure of wheat landrace population conserved at ICARDA genebank
dc.typeArticle
dc.typePublished Version
dc.coverageSwitzerland


Este ítem pertenece a la siguiente institución