Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality
Global warming is predicted to aggravate the risk of unstable crop production. It is of great concern that damage to rice spikelet sterility and grain quality will increase, resulting in yield and economic losses. To secure the global food supply and farmers’ income, the development of rice cultivar...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Informa UK Limited
2016
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/165292 |
| _version_ | 1855519464029683712 |
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| author | Ishimaru, Tsutomu Hirabayashi, Hideyuki Sasaki, Kazuhiro Ye, Changrong Kobayashi, Asako |
| author_browse | Hirabayashi, Hideyuki Ishimaru, Tsutomu Kobayashi, Asako Sasaki, Kazuhiro Ye, Changrong |
| author_facet | Ishimaru, Tsutomu Hirabayashi, Hideyuki Sasaki, Kazuhiro Ye, Changrong Kobayashi, Asako |
| author_sort | Ishimaru, Tsutomu |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Global warming is predicted to aggravate the risk of unstable crop production. It is of great concern that damage to rice spikelet sterility and grain quality will increase, resulting in yield and economic losses. To secure the global food supply and farmers’ income, the development of rice cultivars with heat resilience is a pressing concern. Regarding spikelet sterility, rice cultivars with heat tolerance at different growth stages have been identified in recent years. The early-morning flowering (EMF) trait is effective in heat escape because it shifts the time of day of flowering to earlier in the morning when it is cooler. Although varietal differences are very small, there are some genetic resources for EMF in wild rice accessions. Regarding heat-induced grain chalkiness, heat-tolerant japonica cultivars for mitigating white-back type of chalky grains (WBCG) were found. Quantitative trait loci for heat tolerance at flowering, EMF, and for WBCG in grain quality have been mapped on the rice chromosomes. Further genetic efforts have been successfully connected to the development of near-isogenic lines for each trait with tagged molecular markers. These breeding materials are quite unique and useful in facilitating marker-assisted breeding toward the development of heat-resilient rice in terms of spikelet sterility and grain quality |
| format | Journal Article |
| id | CGSpace165292 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace1652922024-12-19T14:12:10Z Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality Ishimaru, Tsutomu Hirabayashi, Hideyuki Sasaki, Kazuhiro Ye, Changrong Kobayashi, Asako plant breeding heat heat stress heat tolerance grain quality climatic factors climatic change Global warming is predicted to aggravate the risk of unstable crop production. It is of great concern that damage to rice spikelet sterility and grain quality will increase, resulting in yield and economic losses. To secure the global food supply and farmers’ income, the development of rice cultivars with heat resilience is a pressing concern. Regarding spikelet sterility, rice cultivars with heat tolerance at different growth stages have been identified in recent years. The early-morning flowering (EMF) trait is effective in heat escape because it shifts the time of day of flowering to earlier in the morning when it is cooler. Although varietal differences are very small, there are some genetic resources for EMF in wild rice accessions. Regarding heat-induced grain chalkiness, heat-tolerant japonica cultivars for mitigating white-back type of chalky grains (WBCG) were found. Quantitative trait loci for heat tolerance at flowering, EMF, and for WBCG in grain quality have been mapped on the rice chromosomes. Further genetic efforts have been successfully connected to the development of near-isogenic lines for each trait with tagged molecular markers. These breeding materials are quite unique and useful in facilitating marker-assisted breeding toward the development of heat-resilient rice in terms of spikelet sterility and grain quality 2016-01-02 2024-12-19T12:54:55Z 2024-12-19T12:54:55Z Journal Article https://hdl.handle.net/10568/165292 en Open Access Informa UK Limited Ishimaru, Tsutomu; Hirabayashi, Hideyuki; Sasaki, Kazuhiro; Ye, Changrong and Kobayashi, Asako. 2016. Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality. Plant Production Science, Volume 19 no. 1 p. 12-21 |
| spellingShingle | plant breeding heat heat stress heat tolerance grain quality climatic factors climatic change Ishimaru, Tsutomu Hirabayashi, Hideyuki Sasaki, Kazuhiro Ye, Changrong Kobayashi, Asako Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality |
| title | Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality |
| title_full | Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality |
| title_fullStr | Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality |
| title_full_unstemmed | Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality |
| title_short | Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality |
| title_sort | breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality |
| topic | plant breeding heat heat stress heat tolerance grain quality climatic factors climatic change |
| url | https://hdl.handle.net/10568/165292 |
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