Assessing stress tolerance of SUBI and DRO1 introgression lines under flooding and drought conditions at different growth stages
Rice varieties tolerant to submergence regulate shoot elongation during short-term submergence by expressing the SUB1A gene. In contrast, the deep-rooted DRO1 is effectively expressed under drought conditions to enhance water and nutrient uptake. This study investigates the growth and yield of rice...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Tech Science Press
2025
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| Acceso en línea: | https://hdl.handle.net/10568/174393 |
| _version_ | 1855538308337106944 |
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| author | Soe, Ibrahim Odama, Emmanuel Tamu, Alex Wani, Aquilino Lado Legge Ookawa, Taiichiro Ismail, Abdelbagi M. Sakagami, Jun-Ichi |
| author_browse | Ismail, Abdelbagi M. Odama, Emmanuel Ookawa, Taiichiro Sakagami, Jun-Ichi Soe, Ibrahim Tamu, Alex Wani, Aquilino Lado Legge |
| author_facet | Soe, Ibrahim Odama, Emmanuel Tamu, Alex Wani, Aquilino Lado Legge Ookawa, Taiichiro Ismail, Abdelbagi M. Sakagami, Jun-Ichi |
| author_sort | Soe, Ibrahim |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Rice varieties tolerant to submergence regulate shoot elongation during short-term submergence by expressing the SUB1A gene. In contrast, the deep-rooted DRO1 is effectively expressed under drought conditions to enhance water and nutrient uptake. This study investigates the growth and yield of rice with both SUB1A and DRO1 in the background of IR64, under early-season flooding, and mid-season drought. The study used a randomized complete design with two factors: soil moisture treatments (submergence, drought, and their combination) and genotypes. The genotypes included IR64, and three near-isogenic lines (NILs): NIL-SUB1DRO1, NIL-SUB1, and NIL-DRO1. Complete submergence was imposed for 7 days on 14-day-old seedlings, while drought was imposed on control and submerged plants following a 21-day recovery period from submergence, using 42-day-old plants. Variables were measured before and after treatments (submergence and drought), and at harvest or grain maturity. The stresses negatively affected the genotypes. At harvest, IR64 and NIL-SUB1DRO1 under both stresses showed a significant reduction in tiller numbers, shoot dry weights, and yields compared to their control plants. IR64 exhibited a significant delay in reaching flowering under all stresses. The rice introgression lines showed significant improvements in tolerance to the stresses. The study showed no negative consequences of combining drought and submergence tolerance in rice. |
| format | Journal Article |
| id | CGSpace174393 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Tech Science Press |
| publisherStr | Tech Science Press |
| record_format | dspace |
| spelling | CGSpace1743932025-11-12T04:59:23Z Assessing stress tolerance of SUBI and DRO1 introgression lines under flooding and drought conditions at different growth stages Soe, Ibrahim Odama, Emmanuel Tamu, Alex Wani, Aquilino Lado Legge Ookawa, Taiichiro Ismail, Abdelbagi M. Sakagami, Jun-Ichi crop yield genotypes gene expression drought flooding dry matter crop improvement climate change adaptation Rice varieties tolerant to submergence regulate shoot elongation during short-term submergence by expressing the SUB1A gene. In contrast, the deep-rooted DRO1 is effectively expressed under drought conditions to enhance water and nutrient uptake. This study investigates the growth and yield of rice with both SUB1A and DRO1 in the background of IR64, under early-season flooding, and mid-season drought. The study used a randomized complete design with two factors: soil moisture treatments (submergence, drought, and their combination) and genotypes. The genotypes included IR64, and three near-isogenic lines (NILs): NIL-SUB1DRO1, NIL-SUB1, and NIL-DRO1. Complete submergence was imposed for 7 days on 14-day-old seedlings, while drought was imposed on control and submerged plants following a 21-day recovery period from submergence, using 42-day-old plants. Variables were measured before and after treatments (submergence and drought), and at harvest or grain maturity. The stresses negatively affected the genotypes. At harvest, IR64 and NIL-SUB1DRO1 under both stresses showed a significant reduction in tiller numbers, shoot dry weights, and yields compared to their control plants. IR64 exhibited a significant delay in reaching flowering under all stresses. The rice introgression lines showed significant improvements in tolerance to the stresses. The study showed no negative consequences of combining drought and submergence tolerance in rice. 2025 2025-04-30T06:48:32Z 2025-04-30T06:48:32Z Journal Article https://hdl.handle.net/10568/174393 en Open Access application/pdf Tech Science Press Soe, Ibrahim, Emmanuel Odama, Alex Tamu, Aquilino Lado Legge Wani, Taiichiro Ookawa, Abdelbagi M. Ismail, and Jun-Ichi Sakagami. "Assessing Stress Tolerance of SUBI and DRO1 Introgression lines Under Flooding and Drought Conditions at Different Growth Stages." Phyton-International Journal of Experimental Botany Vol. 94, No. 2; p. 303-316 |
| spellingShingle | crop yield genotypes gene expression drought flooding dry matter crop improvement climate change adaptation Soe, Ibrahim Odama, Emmanuel Tamu, Alex Wani, Aquilino Lado Legge Ookawa, Taiichiro Ismail, Abdelbagi M. Sakagami, Jun-Ichi Assessing stress tolerance of SUBI and DRO1 introgression lines under flooding and drought conditions at different growth stages |
| title | Assessing stress tolerance of SUBI and DRO1 introgression lines under flooding and drought conditions at different growth stages |
| title_full | Assessing stress tolerance of SUBI and DRO1 introgression lines under flooding and drought conditions at different growth stages |
| title_fullStr | Assessing stress tolerance of SUBI and DRO1 introgression lines under flooding and drought conditions at different growth stages |
| title_full_unstemmed | Assessing stress tolerance of SUBI and DRO1 introgression lines under flooding and drought conditions at different growth stages |
| title_short | Assessing stress tolerance of SUBI and DRO1 introgression lines under flooding and drought conditions at different growth stages |
| title_sort | assessing stress tolerance of subi and dro1 introgression lines under flooding and drought conditions at different growth stages |
| topic | crop yield genotypes gene expression drought flooding dry matter crop improvement climate change adaptation |
| url | https://hdl.handle.net/10568/174393 |
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