Identification of heat tolerant lentil genotypes through stress tolerance indices
Abstract With climate change projections indicating an increase in the frequency of extreme heat events and irregular rainfall patterns globally, the threat to global food security looms large. Terminal heat stress, which occurs during the critical reproductive stage, significantly limits lentil pro...
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-87326-8 |
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| author | Rohit Sarkar Gyan Prakash Mishra Premakumar Ankita Singh Jenia Roy Kumbarahally Murthigowda Shivaprasad Shashidhar B. Reddappa Sudhir Kumar Ruchi Bansal Uttarayan Dasgupta Soma Gupta Susheel Kumar Sarkar Sanjeev Gupta Shiv Kumar Harsh K. Dikshit Prachi Sripathrao Yadav Muraleedhar S. Aski |
| author_facet | Rohit Sarkar Gyan Prakash Mishra Premakumar Ankita Singh Jenia Roy Kumbarahally Murthigowda Shivaprasad Shashidhar B. Reddappa Sudhir Kumar Ruchi Bansal Uttarayan Dasgupta Soma Gupta Susheel Kumar Sarkar Sanjeev Gupta Shiv Kumar Harsh K. Dikshit Prachi Sripathrao Yadav Muraleedhar S. Aski |
| author_sort | Rohit Sarkar |
| collection | DOAJ |
| description | Abstract With climate change projections indicating an increase in the frequency of extreme heat events and irregular rainfall patterns globally, the threat to global food security looms large. Terminal heat stress, which occurs during the critical reproductive stage, significantly limits lentil productivity. Therefore, there is an urgent need to improve lentil’s resilience to heat stress to sustain production. However, studies identifying heat-tolerant sources in lentils are limited. To address these issues, we assessed 158 lentil genotypes under normal and late-sown conditions over two consecutive seasons. We employed eleven heat stress indices to identify lines tolerant to heat stress. All genotypes exhibited a decrease in average grain yield when subjected to stress conditions as compared to non-stress conditions, indicating the impact of heat stress on crop yield. Correlation analysis showed significant positive correlation between yield in normal and late-sown conditions and the following heat stress indices: STI, MP, MRP, YI, GMP, and HM. In contrast, TOL, SSPI, and PYR showed negative associations with yield in late-sown conditions. Based on these indices, we identified the genotypes P13143, P13130, and P13135 as high-yielding in both stress and non-stress conditions. Cluster analysis and biplot display in PCA also confirmed that genotypes P13143, P13130, and P13135 exhibited suitability and high yield potential in both environments. These genotypes can be utilized as donors in future breeding programs to introduce genetic variations for improving heat stress tolerance in lentil. |
| format | Article |
| id | doaj-art-0087d860b9f4464f9b2d607fdd2a885b |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-0087d860b9f4464f9b2d607fdd2a885b2025-02-02T12:19:27ZengNature PortfolioScientific Reports2045-23222025-01-0115111710.1038/s41598-025-87326-8Identification of heat tolerant lentil genotypes through stress tolerance indicesRohit Sarkar0Gyan Prakash Mishra1Premakumar2Ankita Singh3Jenia Roy4Kumbarahally Murthigowda Shivaprasad5Shashidhar B. Reddappa6Sudhir Kumar7Ruchi Bansal8Uttarayan Dasgupta9Soma Gupta10Susheel Kumar Sarkar11Sanjeev Gupta12Shiv Kumar13Harsh K. Dikshit14Prachi Sripathrao Yadav15Muraleedhar S. Aski16Division of Genetics, Indian Agricultural Research InstituteDivision of Seed Science and Technology, Indian Agricultural Research InstituteDivision of Genetics, Indian Agricultural Research InstituteDivision of Genetics, Indian Agricultural Research InstituteDivision of Genetics, Indian Agricultural Research InstituteIndian Council of Forestry Research and Education (ICFRE)-Institute of Forest BiodiversityIndian Council of Agricultural Research (ICAR)-Krishi Vigyan Kendra, VPKAS-AlmoraDivision of Plant Physiology, Indian Agricultural Research InstituteDivision of Plant Physiology, Indian Agricultural Research InstituteDivision of Genetics, Indian Agricultural Research InstituteDivision of Genetics, Indian Agricultural Research InstituteDivision of Design of Experiments, Indian Agricultural Statistics Research InstituteIndian Council of Agricultural Research (ICAR)-Krishi BhavanSouth Asia and China Program, International Center for Agricultural Research in the Dry Areas, National Agriculture Science ComplexDivision of Genetics, Indian Agricultural Research InstituteDivision of Genetics, Indian Agricultural Research InstituteDivision of Genetics, Indian Agricultural Research InstituteAbstract With climate change projections indicating an increase in the frequency of extreme heat events and irregular rainfall patterns globally, the threat to global food security looms large. Terminal heat stress, which occurs during the critical reproductive stage, significantly limits lentil productivity. Therefore, there is an urgent need to improve lentil’s resilience to heat stress to sustain production. However, studies identifying heat-tolerant sources in lentils are limited. To address these issues, we assessed 158 lentil genotypes under normal and late-sown conditions over two consecutive seasons. We employed eleven heat stress indices to identify lines tolerant to heat stress. All genotypes exhibited a decrease in average grain yield when subjected to stress conditions as compared to non-stress conditions, indicating the impact of heat stress on crop yield. Correlation analysis showed significant positive correlation between yield in normal and late-sown conditions and the following heat stress indices: STI, MP, MRP, YI, GMP, and HM. In contrast, TOL, SSPI, and PYR showed negative associations with yield in late-sown conditions. Based on these indices, we identified the genotypes P13143, P13130, and P13135 as high-yielding in both stress and non-stress conditions. Cluster analysis and biplot display in PCA also confirmed that genotypes P13143, P13130, and P13135 exhibited suitability and high yield potential in both environments. These genotypes can be utilized as donors in future breeding programs to introduce genetic variations for improving heat stress tolerance in lentil.https://doi.org/10.1038/s41598-025-87326-8Abiotic stressStress tolerance indicesLentilClimate smart |
| spellingShingle | Rohit Sarkar Gyan Prakash Mishra Premakumar Ankita Singh Jenia Roy Kumbarahally Murthigowda Shivaprasad Shashidhar B. Reddappa Sudhir Kumar Ruchi Bansal Uttarayan Dasgupta Soma Gupta Susheel Kumar Sarkar Sanjeev Gupta Shiv Kumar Harsh K. Dikshit Prachi Sripathrao Yadav Muraleedhar S. Aski Identification of heat tolerant lentil genotypes through stress tolerance indices Scientific Reports Abiotic stress Stress tolerance indices Lentil Climate smart |
| title | Identification of heat tolerant lentil genotypes through stress tolerance indices |
| title_full | Identification of heat tolerant lentil genotypes through stress tolerance indices |
| title_fullStr | Identification of heat tolerant lentil genotypes through stress tolerance indices |
| title_full_unstemmed | Identification of heat tolerant lentil genotypes through stress tolerance indices |
| title_short | Identification of heat tolerant lentil genotypes through stress tolerance indices |
| title_sort | identification of heat tolerant lentil genotypes through stress tolerance indices |
| topic | Abiotic stress Stress tolerance indices Lentil Climate smart |
| url | https://doi.org/10.1038/s41598-025-87326-8 |
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