数字农科院2.0

A transposon insertion in the 5 ′ UTR of OsPT1 reprograms its expression pattern and promotes cadmium accumulation in rice grains

文献类型： 外文期刊

作者： 彭沙莎;; 王丹;; 刘金灵;; 蒋素;; 许雨晨;; 邓雨飞;; 周小龙;; 胡方志;; 刘卓;;彭烨;;熬合军;;肖应辉;; 王久荣;;赵均良;;刘斌;;易可可;;柏连阳;;王国梁;;康厚祥

作者机构：

关键词： Rice;; cadmium accumulation;; loci associated with grain cadmium content;; Transporter;; GWAS;; miniature inverted-repeat transposable element

期刊名称： Plant Communications

ISSN： 2590-3462

年卷期： 2025 年

页码：

收录情况： SCIE（2025版） ; ; CSCD（2025-2026年度）

摘要： Abstract Cadmium (Cd) accumulation in rice grains presents a serious risk to human health; however, the mechanisms underlying this process remain incompletely understood. In this study, a genome-wide association analysis identified 29 loci associated with grain Cd content (LAGCCs). Among these, one of the most strongly associated loci, LAGCC4, contains the transporter gene OsPT1, whose haplotypes show a strong correlation with Cd content in rice grains. A transposon, H-MITE, inserts into the 5′ untranslated region (UTR) of OsPT1, altering its expression pattern and leading to increased Cd accumulation. Furthermore, we identified the transcription factor OsbHLH35, which specifically binds to the OsPT1H-MITE promoter to regulate its transcription in response to Cd stress. Targeted knockout of either OsPT1H-MITE or OsbHLH35 via CRISPR-Cas9 gene editing significantly reduced grain Cd content, with reductions ranging from 61.7% to 80.6%. This study reveals a previously unrecognized mechanism contributing to high Cd accumulation in rice and identifies genetic targets for breeding rice varieties with reduced Cd content.

分类号：

  • 相关文献

[1]Key genes and mechanisms underlying natural variation of silique length in oilseed rape (Brassica napus L.) germplasm. Quaid Hussain, Jiepeng Zhan, Huabing Liang, Xinfa Wang, Guihua Liu, Jiaqin Shi, Hanzhong Wang. 2021

[2]The Nicotiana benthamiana microtubule-associated E3 ubiquitin ligase degrades a host immune regulator and a viral effector to enhance antiviral defense. 王坤,,,,傅帅,,,,谭羽翀,,,,吴良,,,,王亚琴,,,,周雪平. 2025

[3]Fine-tuning of the CRWN2-NTL9 module to repress PR1 expression by a viral effector during geminivirus infection. 苏晨露,,,,王亚琴,,,,李方方,,,,梅玉振,,,,周雪平. 2025

[4]A key heavy metal-binding protein orchestrates plant resistance against a geminivirus. 刘慧,,,,胡涛,,,,李方方,,,,王亚琴,,,,梅玉振,,,,周雪平. 2025

[5]Divergence in global plant carbon use efficiency across data-driven estimates, satellite product, and process-oriented models. Lei He,,,,Josep Peñuelas,,,,Jingfeng Xiao,,,,Xiaolu Tang,,,,Yue He,,,,Menglin Si,,,,Zhao-Liang Li. 2025

[6]OsCOL16, encoding a CONSTANS-like protein, represses flowering by up-regulating Ghd7, expression in rice. 吴玮勋,,郑晓明,,陈代波,,张迎新,,马薇薇,,张欢,,孙连平,,杨峥赋,,赵春德,,詹晓德,,沈喜红,,于萍,,付亚平,,朱珊珊,,曹立永,,程式花. 2017

[7]A glutamyl–tRNA reductase and its binding protein promote transitory starch biosynthesis and enhance grain quality and yield in rice. 段影青,李晓雪,马刘洋,焦桂爱,操瑞节,董楠楠,李欣伟,王梓航,王平,唐绍清,魏祥进,胡培松. 2025

[8]Reconstruction of cloudy land surface temperature by combining surface energy balance theory and solar-cloud-satellite geometry. Wenhui Du,,,,Zhao-Liang Li,,,,Zhihao Qin,,,,Jinlong Fan,,,,Xiangyang Liu,,,,Chunliang Zhao,,,,Kun Cao. 2025

[9]Contrasting temporal dynamics of land surface temperature response to different types of forest loss. Jing Li,,,,Zhao-Liang Li,,,,Xiangyang Liu,,,,Yitao Li,,,,Meng Liu,,,,Nanshan You,,,,Hua Wu,,,,Lei He,,,,Menglin Si,,,,Ronglin Tang,,,,Chenghu Zhou,,,,Wei Zhao,,,,Si-Bo Duan,,,,Pei Leng,,,,Wenqi Liu,,,,Enyu Zhao,,,,Bo-Hui Tang,,,,Zhenong Jin. 2025

[10]Advances in functional genomics of major rice pests and pathogens and their molecular interactions with the host: A comprehensive review. 万品俊,,王新峰,,张金利,,魏琪,,何佳春,,王渭霞,,赖凤香,,傅强. 2025

[11]Engineering plants using diverse CRISPR-associated proteins and deregulation of genome-edited crops. Zaman, Qamar U.,Raza, Ali,Lozano-Juste, Jorge,Chao, Li,Jones, Michael G. K.,Wang, Hua-Feng,Varshney, Rajeev K.. 2024

[12]上部烟叶灰分及其钙、镁、硫、磷含量与烟叶品质的关系及近红外模型研究. 付秋娟,,郝贤伟,,杜咏梅,,毕一鸣,,孙婷婷. 2025

[13]Evaluation of different clean heat supply modes based on crop straws in the rural areas of Northern China. 霍丽丽,,姚宗路,,贾吉秀,,赵立欣,,丛宏斌,,孟海波,,袁艳文. 2020

[14]Development and characterization of chromosome segment substitution lines derived from Oryza rufipogon in the genetic background of O. sativa spp. indica cultivar 9311. 乔卫华,,齐兰,,程志军,,苏龙,,李静,,孙妍,,任军芳,,郑晓明,,杨庆文. 2016

[15]An egg parasitoid assesses host egg quality from afar using oviposition-induced plant volatiles. Tian, Zhiqiang,Wang, Yuanyuan,Sun, Tao,Hu, Xiaoyun,Hao, Wanting,Zhao, Te,Wang, Yanan,Zhang, Lei,Jiang, Xingfu,Turlings, Ted C. J.,Li, Yunhe. 2025

[16]Regulation of plant immunity through histone H3 β-hydroxybutyrylation-mediated transcriptional control. 徐秋涛,,陈正庭,,王瑞,,,,马瑄,,,,段宇航,,,,海杜,,,,陈静,,,,程仲毅,,,,郑路,,,,黄俊斌,,,,张积森,,,,赵毓,,,,陈晓洋. 2025

[17]Epi-transcriptome analysis reveals the lack of N6-methyladenosine modification in two RNA viruses infecting watermelon. 潘福安,,,,荆嘉贤,,,, Yanhong Qiu,,,,Maoying Li,,,,周雪平,,,,李少芳. 2025

[18]黄曲霉毒素阻控与花生超级结瘤耦合效应研究初报. 周扬,,岳晓凤,,唐晓倩,,闫洪林,,张奇,,李培武. 2021

[19]盐碱地麦后复种绿肥与氮肥减施对小麦产量、环境 足迹及经济效益的协同效应. 张梦璇,,常芳弟,,魏禾雅,,李晓红,,伍林美,,张宏媛. 2025

[20]Mobile genetic elements affect the dissemination of antibiotic resistance genes (ARGs) of clinical importance in the environment. Ye Li ,,,,Ruilin Li ,,,,Jie Hou ,,,, Xuan Sun ,,,, Yajun Wang,,,, Linyun Li ,,,,Fengxia Yang ,,,,Yanpo Yao ,,,, Yi An. 2023

作者其他论文 更多>>