CGIAR Barley Breeding Toolbox: A diversity panel to facilitate breeding and genomic research in the developing world

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dc.creatorBouhlal, Outmane
dc.creatorVisioni, Andrea
dc.creatorVerma, Ramesh Pal Singh
dc.creatorKandil, Mostafa
dc.creatorGyawali, Sanjaya
dc.creatorCapettini, Flavio
dc.creatorSanchez-Garcia, Miguel
dc.date2023-01-09T21:36:03Z
dc.date2023-01-09T21:36:03Z
dc.date.accessioned2026-06-27T14:22:56Z
dc.descriptionBreeding programs in developing countries still cannot afford the new genotyping technologies, hindering their research. We aimed to assemble an Association Mapping panel to serve as CGIAR Barley Breeding Toolbox (CBBT), especially for the Developing World. The germplasm had to be representative of the one grown in the Developing World; with high genetic variability and be of public domain. For it, we genotyped with the Infinium iSelect 50K chip, a Global Barley Panel (GBP) of 530 genotypes representing a wide range of row-types, end-uses, growth habits, geographical origins and environments. 40,342 markers were polymorphic with an average polymorphism information content of 0.35 and 66% of them exceeding 0.25. The analysis of the population structure identified 8 subpopulations mostly linked to geographical origin, four of them with significant ICARDA origin. The 16 allele combinations at 4 major flowering genes (HvVRN-H3, HvPPD-H1, HvVRN-H1 and HvCEN) explained 11.07% genetic variation and were linked to the geographic origins of the lines. ICARDA material showed the widest diversity as revealed by the highest number of polymorphic loci (99.76% of all polymorphic SNPs in GBP), number of private alleles and the fact that ICARDA lines were present in all 8 subpopulations and carried all 16 allelic combinations. Due to their genetic diversity and their representativity of the germplasm adapted to the Developing World, ICARDA-derived lines and cultivated landraces were pre-selected to form the CBBT. Using the Mean of Transformed Kinships method, we assembled a panel capturing most of the allelic diversity in the GBP. The CBBT (N=250) preserves good balance between row-types and good representation of both phenology allelic combinations and subpopulations of the GBP. The CBBT and its genotypic data is available to researchers worldwide as a collaborative tool to underpin the genetic mechanisms of traits of interest for barley cultivation.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/126718
dc.identifier.urihttp://hdl.handle.net/123456789/78028
dc.languageen
dc.publisherFrontiers Media
dc.rightsOpen Access
dc.sourceOutmane Bouhlal, Andrea Visioni, Ramesh Pal Singh Verma, Mostafa Kandil, Sanjaya Gyawali, Flavio Capettini, Miguel Sanchez-Garcia. (14/11/2022). CGIAR Barley Breeding Toolbox: A diversity panel to facilitate breeding and genomic research in the developing world. Frontiers in Plant Science, 13.
dc.subjectbarley
dc.subjectbiodiversity
dc.subjectfood security
dc.subjecthealth
dc.subjectnutrition
dc.subjectphenology
dc.subjectpopulation structure
dc.subjectgoal 1 no poverty
dc.subjectenvironmental health
dc.subjectgoal 2 zero hunger
dc.subjectgoal 3 good health and well-being
dc.subjectgoal 13 climate action
dc.subjectgoal 17 partnerships for the goals
dc.subjectbarley
dc.subjectgenetic diversity
dc.subjectclimate adaptation and mitigation
dc.subjectpoverty reduction, livelihoods and jobs
dc.subjectglobal barley panel
dc.subjectbarley breeding toolbox
dc.subjectassociation mapping (am)
dc.titleCGIAR Barley Breeding Toolbox: A diversity panel to facilitate breeding and genomic research in the developing world
dc.typeJournal Article

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Centro Internacional para la Investigación Agrícola en las Áreas Secas (ICARDA)