Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions
Global nighttime temperatures are rising at twice the rate of daytime temperatures and pose a challenge for rice (Oryza sativa) production. High nighttime temperature (HNT) stress affects rice yield by reducing grain weight, size, and fertility. Although the genes associated with these yield paramet...
| Autores principales: | , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Oxford University Press
2024
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| Acceso en línea: | https://hdl.handle.net/10568/163804 |
| _version_ | 1855529416302526464 |
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| author | Sandhu, Jaspreet Irvin, Larissa Chandaran, Anil Kumar Oguro, Shohei Paul, Puneet Dhatt, Balpreet Hussain, Waseem Cunningham, Shannon S. Quinones, Cherryl O. Lorence, Argelia Adviento-Borbe, Maria Arlene Staswick, Paul Morota, Gota Walia, Harkamal |
| author_browse | Adviento-Borbe, Maria Arlene Chandaran, Anil Kumar Cunningham, Shannon S. Dhatt, Balpreet Hussain, Waseem Irvin, Larissa Lorence, Argelia Morota, Gota Oguro, Shohei Paul, Puneet Quinones, Cherryl O. Sandhu, Jaspreet Staswick, Paul Walia, Harkamal |
| author_facet | Sandhu, Jaspreet Irvin, Larissa Chandaran, Anil Kumar Oguro, Shohei Paul, Puneet Dhatt, Balpreet Hussain, Waseem Cunningham, Shannon S. Quinones, Cherryl O. Lorence, Argelia Adviento-Borbe, Maria Arlene Staswick, Paul Morota, Gota Walia, Harkamal |
| author_sort | Sandhu, Jaspreet |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Global nighttime temperatures are rising at twice the rate of daytime temperatures and pose a challenge for rice (Oryza sativa) production. High nighttime temperature (HNT) stress affects rice yield by reducing grain weight, size, and fertility. Although the genes associated with these yield parameters have been identified and characterized under normal temperatures, the genetic basis of grain weight regulation under HNT stress remains less explored. We examined the natural variation for rice single grain weight (SGW) under HNT stress imposed during grain development. A genome-wide association analysis identified several loci associated with grain weight under HNT stress. A locus, SGW1, specific to HNT conditions resolved to LONELY GUY-Like 1 (LOGL1), which encodes a putative cytokinin-activation enzyme. We demonstrated that LOGL1 contributes to allelic variation at SGW1. Accessions with lower LOGL1 transcript abundance had higher grain weight under HNT. This was supported by the higher grain weight of logl1-mutants relative to the wild type under HNT. Compared to logl1-mutants, LOGL1 over-expressers showed increased sensitivity to HNT. We showed that LOGL1 regulates the thiamin biosynthesis pathway, which is under circadian regulation, which in turn is likely perturbed by HNT stress. These findings provide a genetic source to enhance rice adaptation to warming night temperatures and improve our mechanistic understanding of HNT stress tolerance pathways. |
| format | Journal Article |
| id | CGSpace163804 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | CGSpace1638042025-10-26T12:55:35Z Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions Sandhu, Jaspreet Irvin, Larissa Chandaran, Anil Kumar Oguro, Shohei Paul, Puneet Dhatt, Balpreet Hussain, Waseem Cunningham, Shannon S. Quinones, Cherryl O. Lorence, Argelia Adviento-Borbe, Maria Arlene Staswick, Paul Morota, Gota Walia, Harkamal Global nighttime temperatures are rising at twice the rate of daytime temperatures and pose a challenge for rice (Oryza sativa) production. High nighttime temperature (HNT) stress affects rice yield by reducing grain weight, size, and fertility. Although the genes associated with these yield parameters have been identified and characterized under normal temperatures, the genetic basis of grain weight regulation under HNT stress remains less explored. We examined the natural variation for rice single grain weight (SGW) under HNT stress imposed during grain development. A genome-wide association analysis identified several loci associated with grain weight under HNT stress. A locus, SGW1, specific to HNT conditions resolved to LONELY GUY-Like 1 (LOGL1), which encodes a putative cytokinin-activation enzyme. We demonstrated that LOGL1 contributes to allelic variation at SGW1. Accessions with lower LOGL1 transcript abundance had higher grain weight under HNT. This was supported by the higher grain weight of logl1-mutants relative to the wild type under HNT. Compared to logl1-mutants, LOGL1 over-expressers showed increased sensitivity to HNT. We showed that LOGL1 regulates the thiamin biosynthesis pathway, which is under circadian regulation, which in turn is likely perturbed by HNT stress. These findings provide a genetic source to enhance rice adaptation to warming night temperatures and improve our mechanistic understanding of HNT stress tolerance pathways. 2024-09-02 2024-12-19T12:53:02Z 2024-12-19T12:53:02Z Journal Article https://hdl.handle.net/10568/163804 en Open Access Oxford University Press Sandhu, Jaspreet; Irvin, Larissa; Chandaran, Anil Kumar; Oguro, Shohei; Paul, Puneet; Dhatt, Balpreet; Hussain, Waseem; Cunningham, Shannon S; Quinones, Cherryl O; Lorence, Argelia; Adviento-Borbe, Maria Arlene; Staswick, Paul; Morota, Gota and Walia, Harkamal. 2024. Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions. Plant Physiology, |
| spellingShingle | Sandhu, Jaspreet Irvin, Larissa Chandaran, Anil Kumar Oguro, Shohei Paul, Puneet Dhatt, Balpreet Hussain, Waseem Cunningham, Shannon S. Quinones, Cherryl O. Lorence, Argelia Adviento-Borbe, Maria Arlene Staswick, Paul Morota, Gota Walia, Harkamal Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions |
| title | Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions |
| title_full | Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions |
| title_fullStr | Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions |
| title_full_unstemmed | Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions |
| title_short | Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions |
| title_sort | natural variation in lonely guy like 1 regulates rice grain weight under warmer night conditions |
| url | https://hdl.handle.net/10568/163804 |
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