Improving zinc and iron biofortification in wheat through genomics approaches
Globally, about 20% of calories (energy) come from wheat. In some countries, it is more than 70%. More than 2 billion people are at risk for zinc deficiency and even more, people are at risk of iron deficiency, nearly a quarter of all children underage group of 5 are physically and cognitively stunt...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Springer
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/126450 |
| _version_ | 1855538517905506304 |
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| author | Wani, Shabir Hussain Gaikwad, Kiran Razzaq, Ali Samantara, Kajal Kumar, Manjeet Velu, Govindan |
| author_browse | Gaikwad, Kiran Kumar, Manjeet Razzaq, Ali Samantara, Kajal Velu, Govindan Wani, Shabir Hussain |
| author_facet | Wani, Shabir Hussain Gaikwad, Kiran Razzaq, Ali Samantara, Kajal Kumar, Manjeet Velu, Govindan |
| author_sort | Wani, Shabir Hussain |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Globally, about 20% of calories (energy) come from wheat. In some countries, it is more than 70%. More than 2 billion people are at risk for zinc deficiency and even more, people are at risk of iron deficiency, nearly a quarter of all children underage group of 5 are physically and cognitively stunted, and lack of dietary zinc is a major contributing factor. Biofortified wheat with elevated levels of zinc and iron has several potential advantages as a delivery vehicle for micronutrients in the diets of resource-poor consumers who depend on cereal-based diets. The conventional breeding strategies have been successful in the introduction of novel alleles for grain Zn and Fe that led to the release of competitive Zn enriched wheat varieties in South Asia. The major challenge over the next few decades will be to maintain the rates of genetic gains for grain yield along with increased grain Zn/Fe concentration to meet the food and nutritional security challenges. Therefore, to remain competitive, the performance of Zn-enhanced lines/varieties must be equal or superior to that of current non-biofortified elite lines/varieties. Since both yield and Zn content are invisible and quantitatively inherited traits except few intermediate effect QTL regions identified for grain Zn, increased breeding efforts and new approaches are required to combine them at high frequency, ensuring that Zn levels are steadily increased to the required levels across the breeding pipelines. The current review article provides a comprehensive list of genomic regions for enhancing grain Zn and Fe concentrations in wheat including key candidate gene families such NAS, ZIP, VLT, ZIFL, and YSL. Implementing forward breeding by taking advantage of the rapid cycling trait pipeline approaches would simultaneously introgress high Zn and Fe QTL into the high Zn and normal elite lines, further increasing Zn and Fe concentrations. |
| format | Journal Article |
| id | CGSpace126450 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1264502025-12-08T09:54:28Z Improving zinc and iron biofortification in wheat through genomics approaches Wani, Shabir Hussain Gaikwad, Kiran Razzaq, Ali Samantara, Kajal Kumar, Manjeet Velu, Govindan chromosome mapping genomics iron wheat zinc Globally, about 20% of calories (energy) come from wheat. In some countries, it is more than 70%. More than 2 billion people are at risk for zinc deficiency and even more, people are at risk of iron deficiency, nearly a quarter of all children underage group of 5 are physically and cognitively stunted, and lack of dietary zinc is a major contributing factor. Biofortified wheat with elevated levels of zinc and iron has several potential advantages as a delivery vehicle for micronutrients in the diets of resource-poor consumers who depend on cereal-based diets. The conventional breeding strategies have been successful in the introduction of novel alleles for grain Zn and Fe that led to the release of competitive Zn enriched wheat varieties in South Asia. The major challenge over the next few decades will be to maintain the rates of genetic gains for grain yield along with increased grain Zn/Fe concentration to meet the food and nutritional security challenges. Therefore, to remain competitive, the performance of Zn-enhanced lines/varieties must be equal or superior to that of current non-biofortified elite lines/varieties. Since both yield and Zn content are invisible and quantitatively inherited traits except few intermediate effect QTL regions identified for grain Zn, increased breeding efforts and new approaches are required to combine them at high frequency, ensuring that Zn levels are steadily increased to the required levels across the breeding pipelines. The current review article provides a comprehensive list of genomic regions for enhancing grain Zn and Fe concentrations in wheat including key candidate gene families such NAS, ZIP, VLT, ZIFL, and YSL. Implementing forward breeding by taking advantage of the rapid cycling trait pipeline approaches would simultaneously introgress high Zn and Fe QTL into the high Zn and normal elite lines, further increasing Zn and Fe concentrations. 2022-08 2023-01-01T16:18:33Z 2023-01-01T16:18:33Z Journal Article https://hdl.handle.net/10568/126450 en Open Access application/pdf Springer Wani, S. H., Gaikwad, K., Razzaq, A., Samantara, K., Kumar, M., & Govindan, V. (2022). Improving Zinc and Iron Biofortification in Wheat through Genomics Approaches. Molecular Biology Reports, 49(8), 8007–8023. https://doi.org/10.1007/s11033-022-07326-z |
| spellingShingle | chromosome mapping genomics iron wheat zinc Wani, Shabir Hussain Gaikwad, Kiran Razzaq, Ali Samantara, Kajal Kumar, Manjeet Velu, Govindan Improving zinc and iron biofortification in wheat through genomics approaches |
| title | Improving zinc and iron biofortification in wheat through genomics approaches |
| title_full | Improving zinc and iron biofortification in wheat through genomics approaches |
| title_fullStr | Improving zinc and iron biofortification in wheat through genomics approaches |
| title_full_unstemmed | Improving zinc and iron biofortification in wheat through genomics approaches |
| title_short | Improving zinc and iron biofortification in wheat through genomics approaches |
| title_sort | improving zinc and iron biofortification in wheat through genomics approaches |
| topic | chromosome mapping genomics iron wheat zinc |
| url | https://hdl.handle.net/10568/126450 |
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