Genetic improvement of iron toxicity tolerance in rice-progress, challenges and prospects in West Africa
In sub-Saharan Africa, the demand for higher rice production continues to grow rapidly. Although there is a huge potential for increasing rice production through expansion of the rice cultivation area in wetlands, iron (Fe) toxicity tends to occur and consequently results in low rice yield. Developm...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Informa UK Limited
2015
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/117801 |
| _version_ | 1855540301282672640 |
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| author | Sikirou, M. Saito, Kazuki Achigan-Dako, Enoch G. Drame, K.N. Ahanchédé, A. Venuprasad, R. |
| author_browse | Achigan-Dako, Enoch G. Ahanchédé, A. Drame, K.N. Saito, Kazuki Sikirou, M. Venuprasad, R. |
| author_facet | Sikirou, M. Saito, Kazuki Achigan-Dako, Enoch G. Drame, K.N. Ahanchédé, A. Venuprasad, R. |
| author_sort | Sikirou, M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | In sub-Saharan Africa, the demand for higher rice production continues to grow rapidly. Although there is a huge potential for increasing rice production through expansion of the rice cultivation area in wetlands, iron (Fe) toxicity tends to occur and consequently results in low rice yield. Development and deployment of varieties tolerant to Fe toxicity is one of the practical options to overcome this constraint. Several tolerant varieties have been developed through conventional breeding but progress in breeding has been generally slow mainly due to large genotype × environment interaction and field heterogeneity, which make rice selection ineffective. In addition, there are no valid managed-stress screening protocols which are highly efficient and that can predict rice performance in the diverse target environments of West Africa. Many O. glaberrima accessions have superior tolerance, but only a few of them have been utilized in breeding programs. The known quantitative trait loci (QTLs) related to Fe toxicity, have not been used for marker-assisted selection (MAS), as they gave small effects with a large confidence interval. Accelerating rice breeding efficiency for tolerance to Fe toxicity requires establishment of reliable screening protocols, use of O. glaberrima accessions as donors, identification of large-effect QTLs and MAS using such QTLs. This paper reviews the past and current efforts in West Africa to develop new varieties with superior tolerance to Fe toxicity. |
| format | Journal Article |
| id | CGSpace117801 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace1178012025-12-08T09:54:28Z Genetic improvement of iron toxicity tolerance in rice-progress, challenges and prospects in West Africa Sikirou, M. Saito, Kazuki Achigan-Dako, Enoch G. Drame, K.N. Ahanchédé, A. Venuprasad, R. rice plant breeding plant genetics iron toxicology In sub-Saharan Africa, the demand for higher rice production continues to grow rapidly. Although there is a huge potential for increasing rice production through expansion of the rice cultivation area in wetlands, iron (Fe) toxicity tends to occur and consequently results in low rice yield. Development and deployment of varieties tolerant to Fe toxicity is one of the practical options to overcome this constraint. Several tolerant varieties have been developed through conventional breeding but progress in breeding has been generally slow mainly due to large genotype × environment interaction and field heterogeneity, which make rice selection ineffective. In addition, there are no valid managed-stress screening protocols which are highly efficient and that can predict rice performance in the diverse target environments of West Africa. Many O. glaberrima accessions have superior tolerance, but only a few of them have been utilized in breeding programs. The known quantitative trait loci (QTLs) related to Fe toxicity, have not been used for marker-assisted selection (MAS), as they gave small effects with a large confidence interval. Accelerating rice breeding efficiency for tolerance to Fe toxicity requires establishment of reliable screening protocols, use of O. glaberrima accessions as donors, identification of large-effect QTLs and MAS using such QTLs. This paper reviews the past and current efforts in West Africa to develop new varieties with superior tolerance to Fe toxicity. 2015-01 2022-01-27T15:05:27Z 2022-01-27T15:05:27Z Journal Article https://hdl.handle.net/10568/117801 en Open Access Informa UK Limited Sikirou, M., Saito, K., Achigan-Dako, E.G., Drame, K.N., Ahanchédé, A. and Venuprasad, R. 2015. Genetic improvement of iron toxicity tolerance in rice-progress, challenges and prospects in West Africa. Plant Production Science. Volume 18, Issue 4:423-434. |
| spellingShingle | rice plant breeding plant genetics iron toxicology Sikirou, M. Saito, Kazuki Achigan-Dako, Enoch G. Drame, K.N. Ahanchédé, A. Venuprasad, R. Genetic improvement of iron toxicity tolerance in rice-progress, challenges and prospects in West Africa |
| title | Genetic improvement of iron toxicity tolerance in rice-progress, challenges and prospects in West Africa |
| title_full | Genetic improvement of iron toxicity tolerance in rice-progress, challenges and prospects in West Africa |
| title_fullStr | Genetic improvement of iron toxicity tolerance in rice-progress, challenges and prospects in West Africa |
| title_full_unstemmed | Genetic improvement of iron toxicity tolerance in rice-progress, challenges and prospects in West Africa |
| title_short | Genetic improvement of iron toxicity tolerance in rice-progress, challenges and prospects in West Africa |
| title_sort | genetic improvement of iron toxicity tolerance in rice progress challenges and prospects in west africa |
| topic | rice plant breeding plant genetics iron toxicology |
| url | https://hdl.handle.net/10568/117801 |
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