Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals
Micronutrient deficiency, also known as “hidden hunger,” is an increasingly serious global challenge to humankind. Among the mineral elements, Fe (Iron) and Zn (Zinc) have earned recognition as micronutrients of outstanding and diverse biological relevance, as well as of clinical importance to globa...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Frontiers Media
2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/96542 |
| _version_ | 1855529504324190208 |
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| author | García Oliveira, A.L. Chander, S. Ortíz, R. Menkir, A. Gedil, Melaku A |
| author_browse | Chander, S. García Oliveira, A.L. Gedil, Melaku A Menkir, A. Ortíz, R. |
| author_facet | García Oliveira, A.L. Chander, S. Ortíz, R. Menkir, A. Gedil, Melaku A |
| author_sort | García Oliveira, A.L. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Micronutrient deficiency, also known as “hidden hunger,” is an increasingly serious global challenge to humankind. Among the mineral elements, Fe (Iron) and Zn (Zinc) have earned recognition as micronutrients of outstanding and diverse biological relevance, as well as of clinical importance to global public health. The inherently low Fe and Zn content and poor bioavailability in cereal grains seems to be at the root of these mineral nutrient deficiencies, especially in the developing world where cereal-based diets are the most important sources of calories. The emerging physiological and molecular understanding of the uptake of Fe and Zn and their translocation in cereal grains regrettably also indicates accumulation of other toxic metals, with chemically similar properties, together with these mineral elements. This review article emphasizes breeding to develop bioavailable Fe- and Zn-efficient cereal cultivars to overcome malnutrition while minimizing the risks of toxic metals. We attempt to critically examine the genetic diversity regarding these nutritionally important traits as well as the progress in terms of quantitative genetics. We sought to integrate findings from the rhizosphere with Fe and Zn accumulation in grain, and to discuss the promoters as well as the anti-nutritional factors affecting Fe and Zn bioavailability in humans while restricting the content of toxic metals. |
| format | Journal Article |
| id | CGSpace96542 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace965422025-11-11T10:33:23Z Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals García Oliveira, A.L. Chander, S. Ortíz, R. Menkir, A. Gedil, Melaku A cereals iron zinc micronutrient biofortification toxicity Micronutrient deficiency, also known as “hidden hunger,” is an increasingly serious global challenge to humankind. Among the mineral elements, Fe (Iron) and Zn (Zinc) have earned recognition as micronutrients of outstanding and diverse biological relevance, as well as of clinical importance to global public health. The inherently low Fe and Zn content and poor bioavailability in cereal grains seems to be at the root of these mineral nutrient deficiencies, especially in the developing world where cereal-based diets are the most important sources of calories. The emerging physiological and molecular understanding of the uptake of Fe and Zn and their translocation in cereal grains regrettably also indicates accumulation of other toxic metals, with chemically similar properties, together with these mineral elements. This review article emphasizes breeding to develop bioavailable Fe- and Zn-efficient cereal cultivars to overcome malnutrition while minimizing the risks of toxic metals. We attempt to critically examine the genetic diversity regarding these nutritionally important traits as well as the progress in terms of quantitative genetics. We sought to integrate findings from the rhizosphere with Fe and Zn accumulation in grain, and to discuss the promoters as well as the anti-nutritional factors affecting Fe and Zn bioavailability in humans while restricting the content of toxic metals. 2018-07-02 2018-08-14T15:31:21Z 2018-08-14T15:31:21Z Journal Article https://hdl.handle.net/10568/96542 en Open Access application/pdf Frontiers Media Garcia-Oliveira, A.L., Chander, S., Ortiz, R., Menkir, A. & Gedil, M. (2018). Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals. Frontiers in Plant Science, 9:937, 1-13. |
| spellingShingle | cereals iron zinc micronutrient biofortification toxicity García Oliveira, A.L. Chander, S. Ortíz, R. Menkir, A. Gedil, Melaku A Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals |
| title | Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals |
| title_full | Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals |
| title_fullStr | Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals |
| title_full_unstemmed | Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals |
| title_short | Genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals |
| title_sort | genetic basis and breeding perspectives of grain iron and zinc enrichment in cereals |
| topic | cereals iron zinc micronutrient biofortification toxicity |
| url | https://hdl.handle.net/10568/96542 |
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