Genomic approaches for improving grain zinc and iron content in wheat

dc.creatorRoy, C.
dc.creatorKumar, S.
dc.creatorRanjan, R.D.
dc.creatorKumhar, S.R.
dc.creatorVelu, G.
dc.date2022-12-08T17:21:53Z
dc.date2022-12-08T17:21:53Z
dc.date2022
dc.date.accessioned2023-07-17T20:09:54Z
dc.date.available2023-07-17T20:09:54Z
dc.identifierhttps://hdl.handle.net/10883/22326
dc.identifier10.3389/fgene.2022.1045955
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7514074
dc.descriptionMore than three billion people worldwide suffer from iron deficiency associated anemia and an equal number people suffer from zinc deficiency. These conditions are more prevalent in Sub-Saharan Africa and South Asia. In developing countries, children under the age of five with stunted growth and pregnant or lactating women were found to be at high risk of zinc and iron deficiencies. Biofortification, defined as breeding to develop varieties of staple food crops whose grain contains higher levels of micronutrients such as iron and zinc, are one of the most promising, cost-effective and sustainable ways to improve the health in resource-poor households, particularly in rural areas where families consume some part of what they grow. Biofortification through conventional breeding in wheat, particularly for grain zinc and iron, have made significant contributions, transferring important genes and quantitative trait loci (QTLs) from wild and related species into cultivated wheat. Nonetheless, the quantitative, genetically complex nature of iron and zinc levels in wheat grain limits progress through conventional breeding, making it difficult to attain genetic gain both for yield and grain mineral concentrations. Wheat biofortification can be achieved by enhancing mineral uptake, source-to-sink translocation of minerals and their deposition into grains, and the bioavailability of the minerals. A number of QTLs with major and minor effects for those traits have been detected in wheat; introducing the most effective into breeding lines will increase grain zinc and iron concentrations. New approaches to achieve this include marker assisted selection and genomic selection. Faster breeding approaches need to be combined to simultaneously increase grain mineral content and yield in wheat breeding lines.
dc.languageEnglish
dc.publisherFrontiers
dc.relationClimate adaptation & mitigation
dc.relationAccelerated Breeding
dc.relationGenetic Innovation
dc.relationBill & Melinda Gates Foundation
dc.relationCGIAR Trust Fund
dc.relationForeign, Commonwealth & Development Office
dc.relationhttps://hdl.handle.net/10568/127590
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.source1045955
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectGenome-Wide Association Study
dc.subjectNew Breeding Techniques
dc.subjectGenomic Selection
dc.subjectBIOFORTIFICATION
dc.subjectMARKER-ASSISTED SELECTION
dc.subjectMALNUTRITION
dc.subjectBREEDING
dc.subjectQUANTITATIVE TRAIT LOCI MAPPING
dc.subjectSPEED BREEDING
dc.subjectZINC
dc.subjectIRON
dc.subjectWHEAT
dc.titleGenomic approaches for improving grain zinc and iron content in wheat
dc.typeArticle
dc.typePublished Version
dc.coverageSwitzerland


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