Development of a temperate climate-adapted indica multi-stress tolerant rice variety by pyramiding quantitative trait loci
Successful cultivation of rice (Oryza sativa L.) in many Asian countries requires submergence stress tolerance at the germination and early establishment stages. Two quantitative trait loci, Sub1 (conferring submergence tolerance) and AG1 (conferring anaerobic germination), were recently pyramided i...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Springer
2022
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| Online Access: | https://hdl.handle.net/10568/164085 |
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| author | Shin, Na-Hyun Han, Jae-Hyuk Vo, Kieu Thi Xuan Seo, Jeonghwan Navea, Ian Paul Yoo, Soo-Cheul Jeon, Jong-Seong Chin, Joong Hyoun |
| author_browse | Chin, Joong Hyoun Han, Jae-Hyuk Jeon, Jong-Seong Navea, Ian Paul Seo, Jeonghwan Shin, Na-Hyun Vo, Kieu Thi Xuan Yoo, Soo-Cheul |
| author_facet | Shin, Na-Hyun Han, Jae-Hyuk Vo, Kieu Thi Xuan Seo, Jeonghwan Navea, Ian Paul Yoo, Soo-Cheul Jeon, Jong-Seong Chin, Joong Hyoun |
| author_sort | Shin, Na-Hyun |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Successful cultivation of rice (Oryza sativa L.) in many Asian countries requires submergence stress tolerance at the germination and early establishment stages. Two quantitative trait loci, Sub1 (conferring submergence tolerance) and AG1 (conferring anaerobic germination), were recently pyramided into a single genetic background, without compromising any desirable agronomic traits, leading to the development of Ciherang-Sub1 + AG1 (CSA). However, little research has been conducted to enhance plant tolerance to abiotic stress (submergence) and biotic stress (rice blast), which occur in a damp climate following flooding. The BC2F5 breeding line was phenotypically characterized using the AvrPi9 isolate. The biotic and abiotic stress tolerance of selected lines was tested under submergence stress and anaerobic germination conditions, and lines tolerant to each stress condition were identified through phenotypic and gene expression analyses. The Ciherang-Sub1 + AG1 + Pi9 (CSA-Pi9) line showed similar agronomic performance to its recurrent parent, CSA, but had significantly reduced chalkiness in field trials conducted in temperate regions. Unexpectedly, the CSA-Pi9 line also showed salinity tolerance. Thus, the breeding line newly developed in this study, CSA-Pi9, functioned under stress conditions, in which Sub1, AG1, and Pi9 play a role and had superior grain quality traits compared to its recurrent parent in temperate regions. We speculate that CSA-Pi9 will enable the establishment of climate-resilient rice cropping systems, particularly in East Asia. |
| format | Journal Article |
| id | CGSpace164085 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1640852024-12-19T14:13:28Z Development of a temperate climate-adapted indica multi-stress tolerant rice variety by pyramiding quantitative trait loci Shin, Na-Hyun Han, Jae-Hyuk Vo, Kieu Thi Xuan Seo, Jeonghwan Navea, Ian Paul Yoo, Soo-Cheul Jeon, Jong-Seong Chin, Joong Hyoun plant science soil science agronomy and crop science Successful cultivation of rice (Oryza sativa L.) in many Asian countries requires submergence stress tolerance at the germination and early establishment stages. Two quantitative trait loci, Sub1 (conferring submergence tolerance) and AG1 (conferring anaerobic germination), were recently pyramided into a single genetic background, without compromising any desirable agronomic traits, leading to the development of Ciherang-Sub1 + AG1 (CSA). However, little research has been conducted to enhance plant tolerance to abiotic stress (submergence) and biotic stress (rice blast), which occur in a damp climate following flooding. The BC2F5 breeding line was phenotypically characterized using the AvrPi9 isolate. The biotic and abiotic stress tolerance of selected lines was tested under submergence stress and anaerobic germination conditions, and lines tolerant to each stress condition were identified through phenotypic and gene expression analyses. The Ciherang-Sub1 + AG1 + Pi9 (CSA-Pi9) line showed similar agronomic performance to its recurrent parent, CSA, but had significantly reduced chalkiness in field trials conducted in temperate regions. Unexpectedly, the CSA-Pi9 line also showed salinity tolerance. Thus, the breeding line newly developed in this study, CSA-Pi9, functioned under stress conditions, in which Sub1, AG1, and Pi9 play a role and had superior grain quality traits compared to its recurrent parent in temperate regions. We speculate that CSA-Pi9 will enable the establishment of climate-resilient rice cropping systems, particularly in East Asia. 2022-12 2024-12-19T12:53:27Z 2024-12-19T12:53:27Z Journal Article https://hdl.handle.net/10568/164085 en Open Access Springer Shin, Na-Hyun; Han, Jae-Hyuk; Vo, Kieu Thi Xuan; Seo, Jeonghwan; Navea, Ian Paul; Yoo, Soo-Cheul; Jeon, Jong-Seong and Chin, Joong Hyoun. 2022. Development of a temperate climate-adapted indica multi-stress tolerant rice variety by pyramiding quantitative trait loci. Rice, Volume 15, no. 1 |
| spellingShingle | plant science soil science agronomy and crop science Shin, Na-Hyun Han, Jae-Hyuk Vo, Kieu Thi Xuan Seo, Jeonghwan Navea, Ian Paul Yoo, Soo-Cheul Jeon, Jong-Seong Chin, Joong Hyoun Development of a temperate climate-adapted indica multi-stress tolerant rice variety by pyramiding quantitative trait loci |
| title | Development of a temperate climate-adapted indica multi-stress tolerant rice variety by pyramiding quantitative trait loci |
| title_full | Development of a temperate climate-adapted indica multi-stress tolerant rice variety by pyramiding quantitative trait loci |
| title_fullStr | Development of a temperate climate-adapted indica multi-stress tolerant rice variety by pyramiding quantitative trait loci |
| title_full_unstemmed | Development of a temperate climate-adapted indica multi-stress tolerant rice variety by pyramiding quantitative trait loci |
| title_short | Development of a temperate climate-adapted indica multi-stress tolerant rice variety by pyramiding quantitative trait loci |
| title_sort | development of a temperate climate adapted indica multi stress tolerant rice variety by pyramiding quantitative trait loci |
| topic | plant science soil science agronomy and crop science |
| url | https://hdl.handle.net/10568/164085 |
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