Iron biofortification in rice: An update on quantitative trait loci and candidate genes
Rice is the most versatile model for cereals and also an economically relevant food crop; as a result, it is the most suitable species for molecular characterization of Fe homeostasis and biofortification. Recently there have been significant efforts to dissect genes and quantitative trait loci (QTL...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Frontiers Media
2021
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| Acceso en línea: | https://hdl.handle.net/10568/164267 |
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| author | Swamy, B.P. Mallikarjuna Marathi, Balram Ribeiro-Barros, Ana I. F. Calayugan, Mark Ian C. Ricachenevsky, Felipe Klein |
| author_browse | Calayugan, Mark Ian C. Marathi, Balram Ribeiro-Barros, Ana I. F. Ricachenevsky, Felipe Klein Swamy, B.P. Mallikarjuna |
| author_facet | Swamy, B.P. Mallikarjuna Marathi, Balram Ribeiro-Barros, Ana I. F. Calayugan, Mark Ian C. Ricachenevsky, Felipe Klein |
| author_sort | Swamy, B.P. Mallikarjuna |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Rice is the most versatile model for cereals and also an economically relevant food crop; as a result, it is the most suitable species for molecular characterization of Fe homeostasis and biofortification. Recently there have been significant efforts to dissect genes and quantitative trait loci (QTL) associated with Fe translocation into rice grains; such information is highly useful for Fe biofortification of cereals but very limited in other species, such as maize (Zea mays) and wheat (Triticum aestivum). Given rice’s centrality as a model for Poaceae species, we review the current knowledge on genes playing important roles in Fe transport, accumulation, and distribution in rice grains and QTLs that might explain the variability in Fe concentrations observed in different genotypes. More than 90 Fe QTLs have been identified over the 12 rice chromosomes. From these, 17 were recorded as stable, and 25 harbored Fe-related genes nearby or within the QTL. Among the candidate genes associated with Fe uptake, translocation, and loading into rice grains, we highlight the function of transporters from the YSL and ZIP families; transporters from metal-binding molecules, such as nicotianamine and deoxymugineic acid; vacuolar iron transporters; citrate efflux transporters; and others that were shown to play a role in steps leading to Fe delivery to seeds. Finally, we discuss the application of these QTLs and genes in genomics assisted breeding for fast-tracking Fe biofortification in rice and other cereals in the near future. |
| format | Journal Article |
| id | CGSpace164267 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1642672025-05-14T10:24:28Z Iron biofortification in rice: An update on quantitative trait loci and candidate genes Swamy, B.P. Mallikarjuna Marathi, Balram Ribeiro-Barros, Ana I. F. Calayugan, Mark Ian C. Ricachenevsky, Felipe Klein plant science Rice is the most versatile model for cereals and also an economically relevant food crop; as a result, it is the most suitable species for molecular characterization of Fe homeostasis and biofortification. Recently there have been significant efforts to dissect genes and quantitative trait loci (QTL) associated with Fe translocation into rice grains; such information is highly useful for Fe biofortification of cereals but very limited in other species, such as maize (Zea mays) and wheat (Triticum aestivum). Given rice’s centrality as a model for Poaceae species, we review the current knowledge on genes playing important roles in Fe transport, accumulation, and distribution in rice grains and QTLs that might explain the variability in Fe concentrations observed in different genotypes. More than 90 Fe QTLs have been identified over the 12 rice chromosomes. From these, 17 were recorded as stable, and 25 harbored Fe-related genes nearby or within the QTL. Among the candidate genes associated with Fe uptake, translocation, and loading into rice grains, we highlight the function of transporters from the YSL and ZIP families; transporters from metal-binding molecules, such as nicotianamine and deoxymugineic acid; vacuolar iron transporters; citrate efflux transporters; and others that were shown to play a role in steps leading to Fe delivery to seeds. Finally, we discuss the application of these QTLs and genes in genomics assisted breeding for fast-tracking Fe biofortification in rice and other cereals in the near future. 2021-05-26 2024-12-19T12:53:39Z 2024-12-19T12:53:39Z Journal Article https://hdl.handle.net/10568/164267 en Open Access Frontiers Media Swamy, B. P. Mallikarjuna; Marathi, Balram; Ribeiro-Barros, Ana I. F.; Calayugan, Mark Ian C. and Ricachenevsky, Felipe Klein. 2021. Iron biofortification in rice: An update on quantitative trait loci and candidate genes. Front. Plant Sci., Volume 12 |
| spellingShingle | plant science Swamy, B.P. Mallikarjuna Marathi, Balram Ribeiro-Barros, Ana I. F. Calayugan, Mark Ian C. Ricachenevsky, Felipe Klein Iron biofortification in rice: An update on quantitative trait loci and candidate genes |
| title | Iron biofortification in rice: An update on quantitative trait loci and candidate genes |
| title_full | Iron biofortification in rice: An update on quantitative trait loci and candidate genes |
| title_fullStr | Iron biofortification in rice: An update on quantitative trait loci and candidate genes |
| title_full_unstemmed | Iron biofortification in rice: An update on quantitative trait loci and candidate genes |
| title_short | Iron biofortification in rice: An update on quantitative trait loci and candidate genes |
| title_sort | iron biofortification in rice an update on quantitative trait loci and candidate genes |
| topic | plant science |
| url | https://hdl.handle.net/10568/164267 |
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