A phytoexclusion strategy for reducing contamination risk of rice based on low-Cd natural variations pyramid of root transporters
文献类型： 外文期刊
作者： Huili, Yan 1 ; Ruoxi, Liu 1 ; Zhimei, Peng 1 ; Hezifan, Zhang 1 ; Shuangnan, Hao 1 ; Hanyao, Guo 4 ; Binghan, Wang 1 ; Weiping, Wang 5 ; Yijun, Yu 6 ; Hongliang, Zhang 7 ; Tonghui, Qian 1 ; Wenxiu, Xu 1 ; Mi, Ma 1 ; Zhenyan, He 1 ;
作者机构： 1.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China
2.China Natl Bot Garden, Beijing 100093, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Hebei Normal Univ, Shijiazhuang 050024, Peoples R China
5.Hunan Hybrid Rice Res Ctr, State Key Lab Hybrid Rice, Changsha 410125, Peoples R China
6.Zhejiang Stn Management Arable Land Qual & Fertili, Hangzhou 310020, Peoples R China
7.China Agr Univ, Sanya Inst, Sanya 572024, Peoples R China
关键词： Phytoexclusion; Rice; Cadmium; Natural variation; Pyramid
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：13.6； 五年影响因子：12.7 ）
ISSN： 0304-3894
年卷期： 2023 年 458 卷
页码：
收录情况： SCI
摘要： Cadmium pollution in rice is a threat to human health. Phytoexclusion is an effective strategy to reduce the Cd accumulation. Soil-to-root is the first step of Cd entering rice and plays a crucial role in Cd accumulation, so targeting root transporters could be an effective approach for phytoexclusion. This study utilized single-gene & multi-gene joint haplotype analysis to reveal the law of natural variations. The result showed that natural variations of rice root transporters assembled regularly following a certain pattern, rather than randomly. A total of 3 dominant nature variation combinations with 2 high-Cd combinations and 1 low-Cd combination were identified. In addition, indica-japonica differentiation was observed, with indica germplasms harboring high-Cd combinations while japonica germplasms harboring. In Chinese rice landraces, most of the collected indica landraces contained high-Cd combinations, indicating a high Cd contamination risk in indica landraces in terms of both phenotype and genotype. To address this issue, multiple superior low-Cd natural variations were pyramided to create two new low-Cd germplasms. In both pond and farmland trials, the ameliorated rice grain Cd
- 相关文献
