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Huang Z, Li S, Lv Z, Tian Y, Chen Y, Zhu Y, Wang J, Deng H, Sun L, Tang W. Identification of subspecies-divergent genetic loci responsible for mineral accumulation in rice grains. Front Genet 2023; 14:1133600. [PMID: 36824439 PMCID: PMC9941327 DOI: 10.3389/fgene.2023.1133600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 01/27/2023] [Indexed: 02/10/2023] Open
Abstract
Rice (Oryza sativa L.) is a major staple food that provides not only dietary calories but also trace elements for the global inhabitants. The insufficiency of mineral nutrients and the potential accumulation of excessive toxic elements in grains pose risks to human health. The substantial natural variations in mineral accumulation in rice grains presents potentials for genetic improvements of rice via biofortifications of essential mineral nutrients and eliminations of toxic elements in grains. However, the genetic mechanisms underlying the natural variations in mineral accumulation have not been fully explored to date owing to unstable phenotypic variations, which are attributed to poor genetic performance and strong environmental effects. In this study, we first compared the genetic performance of different normalization approaches in determining the grain-Cd, grain-Mn, and grain-Zn variations in rice in different genetic populations. Then through quantitative trait loci (QTLs) identification in two rice inter-ectype populations, three QTLs, including qCd7, qMn3, and qZn7, were identified and the QTLs were found to exhibit allelic differentiation in the different ecotypes. Our results were expected to broaden our understanding for mineral accumulation in rice and propose the potential functional alleles that can be explored for further genetic improvement of rice.
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Affiliation(s)
- Zijian Huang
- College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Sai Li
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Zhaokun Lv
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Yan Tian
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
| | - Yibo Chen
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Yuxing Zhu
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Jiurong Wang
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Huabing Deng
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Liang Sun
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China,*Correspondence: Wenbang Tang, ; Liang Sun,
| | - Wenbang Tang
- College of Agronomy, Hunan Agricultural University, Changsha, China,State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China,*Correspondence: Wenbang Tang, ; Liang Sun,
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Deng F, Zeng F, Norton GJ. Editorial: Natural Variations and Genetic Constraints on Plant Nutrition. Front Genet 2022; 13:941118. [PMID: 35812746 PMCID: PMC9264042 DOI: 10.3389/fgene.2022.941118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/06/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Fenglin Deng
- College of Agriculture, Yangtze University, Jingzhou, China
- *Correspondence: Fenglin Deng,
| | - Fanrong Zeng
- College of Agriculture, Yangtze University, Jingzhou, China
| | - Gareth J. Norton
- School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
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