qDTY introgression to improve the drought tolerance of Taiwanese japonica rice variety Tainan 11
Whereas many indica and rainfed rice-growing regions have historically been considered drought-prone, lowland japonica-growing regions have typically not been considered to be affected by drought. However, the increasing incidence of drought in japonica rice-growing regions necessitates breeding for...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Informa UK Limited
2025
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/176445 |
| _version_ | 1855534318859845632 |
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| author | Bordeos, Alicia Henry, Amelia Pocsedio, Arnel Dixit, Shalabh Lai, Ming-Hsin Leung, Hei |
| author_browse | Bordeos, Alicia Dixit, Shalabh Henry, Amelia Lai, Ming-Hsin Leung, Hei Pocsedio, Arnel |
| author_facet | Bordeos, Alicia Henry, Amelia Pocsedio, Arnel Dixit, Shalabh Lai, Ming-Hsin Leung, Hei |
| author_sort | Bordeos, Alicia |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Whereas many indica and rainfed rice-growing regions have historically been considered drought-prone, lowland japonica-growing regions have typically not been considered to be affected by drought. However, the increasing incidence of drought in japonica rice-growing regions necessitates breeding for future climate scenarios. Several major-effect drought tolerance yield QTLs (qDTYs) have been introgressed into indica backgrounds, but further improvement of japonica varieties is now needed. In this study, we introgressed seven qDTYs and their combinations through crossing four qDTY donor lines with the Taiwanese japonicavariety Tainan 11 (TN 11). BC3F6- BC3F8 progeny were evaluated in agronomic trials under drought. Although no single group of introgression lines with the same qDTY stood out as best performing, we observed that the higher yield under drought appeared to correspond with earlier time to flowering. Selected lines for yield under drought showed similar height and grain type to TN 11. We identified three lines that could be evaluated for deployment in Taiwan or as pre-breeding material for developing other drought-tolerant japonica varieties. |
| format | Journal Article |
| id | CGSpace176445 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace1764452025-10-26T13:02:46Z qDTY introgression to improve the drought tolerance of Taiwanese japonica rice variety Tainan 11 Bordeos, Alicia Henry, Amelia Pocsedio, Arnel Dixit, Shalabh Lai, Ming-Hsin Leung, Hei japonica rice indica rice drought tolerance quantitative trait loci introgression crop yield flowering Whereas many indica and rainfed rice-growing regions have historically been considered drought-prone, lowland japonica-growing regions have typically not been considered to be affected by drought. However, the increasing incidence of drought in japonica rice-growing regions necessitates breeding for future climate scenarios. Several major-effect drought tolerance yield QTLs (qDTYs) have been introgressed into indica backgrounds, but further improvement of japonica varieties is now needed. In this study, we introgressed seven qDTYs and their combinations through crossing four qDTY donor lines with the Taiwanese japonicavariety Tainan 11 (TN 11). BC3F6- BC3F8 progeny were evaluated in agronomic trials under drought. Although no single group of introgression lines with the same qDTY stood out as best performing, we observed that the higher yield under drought appeared to correspond with earlier time to flowering. Selected lines for yield under drought showed similar height and grain type to TN 11. We identified three lines that could be evaluated for deployment in Taiwan or as pre-breeding material for developing other drought-tolerant japonica varieties. 2025-07-04 2025-09-11T03:14:40Z 2025-09-11T03:14:40Z Journal Article https://hdl.handle.net/10568/176445 en Limited Access Informa UK Limited Bordeos, Alicia, Amelia Henry, Arnel Pocsedio, Shalabh Dixit, Ming-Hsin Lai, and Hei Leung. "qDTY introgression to improve the drought tolerance of Taiwanese japonica rice variety Tainan 11." Journal of Crop Improvement (2025): 1-26. |
| spellingShingle | japonica rice indica rice drought tolerance quantitative trait loci introgression crop yield flowering Bordeos, Alicia Henry, Amelia Pocsedio, Arnel Dixit, Shalabh Lai, Ming-Hsin Leung, Hei qDTY introgression to improve the drought tolerance of Taiwanese japonica rice variety Tainan 11 |
| title | qDTY introgression to improve the drought tolerance of Taiwanese japonica rice variety Tainan 11 |
| title_full | qDTY introgression to improve the drought tolerance of Taiwanese japonica rice variety Tainan 11 |
| title_fullStr | qDTY introgression to improve the drought tolerance of Taiwanese japonica rice variety Tainan 11 |
| title_full_unstemmed | qDTY introgression to improve the drought tolerance of Taiwanese japonica rice variety Tainan 11 |
| title_short | qDTY introgression to improve the drought tolerance of Taiwanese japonica rice variety Tainan 11 |
| title_sort | qdty introgression to improve the drought tolerance of taiwanese japonica rice variety tainan 11 |
| topic | japonica rice indica rice drought tolerance quantitative trait loci introgression crop yield flowering |
| url | https://hdl.handle.net/10568/176445 |
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