Superior haplotypes of genes associated with higher grain yield under reproductive stage drought stress in rice
Understanding the genetic basis of reproductive stage drought tolerance (RSDT) requires bridging genomic variations with phenotype. This study employed a genome-wide association study (GWAS) using 450 rice accessions for grain yield under reproductive stage drought stress across three locations and...
| Autores principales: | , , , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Oxford University Press
2025
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| Acceso en línea: | https://hdl.handle.net/10568/176447 |
| _version_ | 1855539936064700416 |
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| author | Singh, Preeti Pahi, Bandana Sundaram, Krishna T. Gnanapragasam, Niranjani Habde, Sonali Vijay Kumar, Nandigam Vinay Patil, Namrata Devidas Paul, Pronob J. Kumar, Ravi Shekhar Singh, Suresh Prasad Kalia, Sanjay Kumar, Arvind Kohli, Ajay Singh, Uma Maheshwar Singh, Vikas Kumar Sinha, Pallavi |
| author_browse | Gnanapragasam, Niranjani Habde, Sonali Vijay Kalia, Sanjay Kohli, Ajay Kumar, Arvind Kumar, Nandigam Vinay Kumar, Ravi Shekhar Pahi, Bandana Patil, Namrata Devidas Paul, Pronob J. Singh, Preeti Singh, Suresh Prasad Singh, Uma Maheshwar Singh, Vikas Kumar Sinha, Pallavi Sundaram, Krishna T. |
| author_facet | Singh, Preeti Pahi, Bandana Sundaram, Krishna T. Gnanapragasam, Niranjani Habde, Sonali Vijay Kumar, Nandigam Vinay Patil, Namrata Devidas Paul, Pronob J. Kumar, Ravi Shekhar Singh, Suresh Prasad Kalia, Sanjay Kumar, Arvind Kohli, Ajay Singh, Uma Maheshwar Singh, Vikas Kumar Sinha, Pallavi |
| author_sort | Singh, Preeti |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Understanding the genetic basis of reproductive stage drought tolerance (RSDT) requires bridging genomic variations with phenotype. This study employed a genome-wide association study (GWAS) using 450 rice accessions for grain yield under reproductive stage drought stress across three locations and two seasons. The results revealed 67 marker–trait associations (MTAs) that corresponded to 23 candidate genes. Superior haplotypes were identified for 10 RSDT-related genes, namely SAP-H22, WRKY109-H6, OsIRO2-H3, OsSOBIR1-H68, OsPGL31-H8, OsDAHPS1-H2, ZCD-H13, OsMC2-H8, Ospdr9-H16, and SDR-H2. These genes are involved in stress-related processes such as transcription regulation, cell wall structure modification, leaf rolling, programmed cell death, redox stress, and secondary metabolite accumulation. Notably, introgressing superior haplotypes from the OsIRO2-H3 gene into an elite rice cultivar led to a yield advantage of 25.0–27.3% over recurrent parents. These findings highlight the potential of these genes as valuable resources for breeding high-yielding, drought-tolerant rice varieties. |
| format | Journal Article |
| id | CGSpace176447 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | CGSpace1764472025-11-12T04:59:43Z Superior haplotypes of genes associated with higher grain yield under reproductive stage drought stress in rice Singh, Preeti Pahi, Bandana Sundaram, Krishna T. Gnanapragasam, Niranjani Habde, Sonali Vijay Kumar, Nandigam Vinay Patil, Namrata Devidas Paul, Pronob J. Kumar, Ravi Shekhar Singh, Suresh Prasad Kalia, Sanjay Kumar, Arvind Kohli, Ajay Singh, Uma Maheshwar Singh, Vikas Kumar Sinha, Pallavi rice reproductive stage crop yield genomics genome-wide association haplotypes candidate genes plant breeding stress tolerance Understanding the genetic basis of reproductive stage drought tolerance (RSDT) requires bridging genomic variations with phenotype. This study employed a genome-wide association study (GWAS) using 450 rice accessions for grain yield under reproductive stage drought stress across three locations and two seasons. The results revealed 67 marker–trait associations (MTAs) that corresponded to 23 candidate genes. Superior haplotypes were identified for 10 RSDT-related genes, namely SAP-H22, WRKY109-H6, OsIRO2-H3, OsSOBIR1-H68, OsPGL31-H8, OsDAHPS1-H2, ZCD-H13, OsMC2-H8, Ospdr9-H16, and SDR-H2. These genes are involved in stress-related processes such as transcription regulation, cell wall structure modification, leaf rolling, programmed cell death, redox stress, and secondary metabolite accumulation. Notably, introgressing superior haplotypes from the OsIRO2-H3 gene into an elite rice cultivar led to a yield advantage of 25.0–27.3% over recurrent parents. These findings highlight the potential of these genes as valuable resources for breeding high-yielding, drought-tolerant rice varieties. 2025-04-28 2025-09-11T03:14:50Z 2025-09-11T03:14:50Z Journal Article https://hdl.handle.net/10568/176447 en Open Access application/pdf Oxford University Press Singh, Preeti, Bandana Pahi, Krishna T. Sundaram, Niranjani Gnanapragasam, Sonali Vijay Habde, Nandigam Vinay Kumar, Namrata Devidas Patil et al. "Superior haplotypes of genes associated with higher grain yield under reproductive stage drought stress in rice." Journal of Experimental Botany (2025): eraf150. |
| spellingShingle | rice reproductive stage crop yield genomics genome-wide association haplotypes candidate genes plant breeding stress tolerance Singh, Preeti Pahi, Bandana Sundaram, Krishna T. Gnanapragasam, Niranjani Habde, Sonali Vijay Kumar, Nandigam Vinay Patil, Namrata Devidas Paul, Pronob J. Kumar, Ravi Shekhar Singh, Suresh Prasad Kalia, Sanjay Kumar, Arvind Kohli, Ajay Singh, Uma Maheshwar Singh, Vikas Kumar Sinha, Pallavi Superior haplotypes of genes associated with higher grain yield under reproductive stage drought stress in rice |
| title | Superior haplotypes of genes associated with higher grain yield under reproductive stage drought stress in rice |
| title_full | Superior haplotypes of genes associated with higher grain yield under reproductive stage drought stress in rice |
| title_fullStr | Superior haplotypes of genes associated with higher grain yield under reproductive stage drought stress in rice |
| title_full_unstemmed | Superior haplotypes of genes associated with higher grain yield under reproductive stage drought stress in rice |
| title_short | Superior haplotypes of genes associated with higher grain yield under reproductive stage drought stress in rice |
| title_sort | superior haplotypes of genes associated with higher grain yield under reproductive stage drought stress in rice |
| topic | rice reproductive stage crop yield genomics genome-wide association haplotypes candidate genes plant breeding stress tolerance |
| url | https://hdl.handle.net/10568/176447 |
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