Detection of QTL for High-Temperature Tolerance in Rice Using a High-Density Bin Map
Rice is sensitive to high-temperature stress during almost all stages of growth and development. High-temperature stress has become one of the main factors restricting high yield and superior quality of rice. In this study, recombinant inbred lines (RILs) derived from an <i>indica</i> ri...
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MDPI AG
2023-06-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/13/6/1582 |
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| author | Derun Huang Zhenhua Zhang Yeyang Fan Shaoqing Tang Jieyun Zhuang Yujun Zhu |
| author_facet | Derun Huang Zhenhua Zhang Yeyang Fan Shaoqing Tang Jieyun Zhuang Yujun Zhu |
| author_sort | Derun Huang |
| collection | DOAJ |
| description | Rice is sensitive to high-temperature stress during almost all stages of growth and development. High-temperature stress has become one of the main factors restricting high yield and superior quality of rice. In this study, recombinant inbred lines (RILs) derived from an <i>indica</i> rice cross between two restorer lines were planted in two years. One sowing date was applied in 2019, and four sowing dates were set in 2020 according to the period of local high temperatures in recent years. Two traits closely related to high-temperature tolerance, heading date (HD), and spikelet fertility (SF) were measured. In each trial, the HD showed a bimodal distribution, whereas SF had a continuous and left-skewed distribution. QTL analysis was performed using a high-density bin map. For HD, a total of six QTL were detected. All of them correspond in position to the cloned genes, among which <i>qHD8</i> in the <i>DTH8</i>/<i>Ghd8</i> region showed the largest genetic effect. For SF, a total of eight QTL were detected. Five of them, <i>qSF1</i>, <i>qSF2</i>, <i>qSF3.1</i>, <i>qSF3.2</i>, and <i>qSF8</i>, showed high-temperature tolerance and had an important potential in rice breeding. |
| first_indexed | 2024-03-11T02:51:29Z |
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| id | doaj.art-1ff73dd3d8374ff29d11a1869d4d6ed8 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-11T02:51:29Z |
| publishDate | 2023-06-01 |
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| series | Agronomy |
| spelling | doaj.art-1ff73dd3d8374ff29d11a1869d4d6ed82023-11-18T08:55:13ZengMDPI AGAgronomy2073-43952023-06-01136158210.3390/agronomy13061582Detection of QTL for High-Temperature Tolerance in Rice Using a High-Density Bin MapDerun Huang0Zhenhua Zhang1Yeyang Fan2Shaoqing Tang3Jieyun Zhuang4Yujun Zhu5State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, ChinaState Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, ChinaState Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, ChinaState Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, ChinaState Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, ChinaState Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, ChinaRice is sensitive to high-temperature stress during almost all stages of growth and development. High-temperature stress has become one of the main factors restricting high yield and superior quality of rice. In this study, recombinant inbred lines (RILs) derived from an <i>indica</i> rice cross between two restorer lines were planted in two years. One sowing date was applied in 2019, and four sowing dates were set in 2020 according to the period of local high temperatures in recent years. Two traits closely related to high-temperature tolerance, heading date (HD), and spikelet fertility (SF) were measured. In each trial, the HD showed a bimodal distribution, whereas SF had a continuous and left-skewed distribution. QTL analysis was performed using a high-density bin map. For HD, a total of six QTL were detected. All of them correspond in position to the cloned genes, among which <i>qHD8</i> in the <i>DTH8</i>/<i>Ghd8</i> region showed the largest genetic effect. For SF, a total of eight QTL were detected. Five of them, <i>qSF1</i>, <i>qSF2</i>, <i>qSF3.1</i>, <i>qSF3.2</i>, and <i>qSF8</i>, showed high-temperature tolerance and had an important potential in rice breeding.https://www.mdpi.com/2073-4395/13/6/1582riceheading datespikelet fertilityhigh-temperature toleranceQTL |
| spellingShingle | Derun Huang Zhenhua Zhang Yeyang Fan Shaoqing Tang Jieyun Zhuang Yujun Zhu Detection of QTL for High-Temperature Tolerance in Rice Using a High-Density Bin Map Agronomy rice heading date spikelet fertility high-temperature tolerance QTL |
| title | Detection of QTL for High-Temperature Tolerance in Rice Using a High-Density Bin Map |
| title_full | Detection of QTL for High-Temperature Tolerance in Rice Using a High-Density Bin Map |
| title_fullStr | Detection of QTL for High-Temperature Tolerance in Rice Using a High-Density Bin Map |
| title_full_unstemmed | Detection of QTL for High-Temperature Tolerance in Rice Using a High-Density Bin Map |
| title_short | Detection of QTL for High-Temperature Tolerance in Rice Using a High-Density Bin Map |
| title_sort | detection of qtl for high temperature tolerance in rice using a high density bin map |
| topic | rice heading date spikelet fertility high-temperature tolerance QTL |
| url | https://www.mdpi.com/2073-4395/13/6/1582 |
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