Genome-wide association and selection studies reveal genomic insight into saline-alkali tolerance in rice

文献类型： 外文期刊

第一作者： Li, Jin

作者： Li, Jin;Xu, Chen;Tian, Yunlu;Chen, Gaoming;Chi, Wenchao;Dai, Zhaoyang;Li, Jing;Wang, Chunyuan;Cheng, Xinran;Wang, Chunming;Wan, Jianmin;Li, Jin;Xu, Chen;Tian, Yunlu;Chen, Gaoming;Chi, Wenchao;Dai, Zhaoyang;Li, Jing;Wang, Chunyuan;Cheng, Xinran;Wang, Chunming;Wan, Jianmin;Liu, Yan;Sun, Zhiguang;Li, Jingfang;Wang, Baoxiang;Xu, Dayong;Sun, Xianjun;Zhang, Hui;Wan, Jianmin;Zhu, Chengsong;Wang, Chunming

作者机构：

关键词： rice; saline-alkali tolerance; genomic analysis; SAT1/OsCYL4; ROS

期刊名称：PLANT JOURNAL （ 影响因子：5.7； 五年影响因子：7.0 ）

ISSN： 0960-7412

年卷期： 2025 年 121 卷 6 期

页码：

收录情况： SCI

摘要： Saline-alkali stress has detrimental effects on growth and development of rice (Oryza sativa L.). Domesticated rice cultivars with high saline-alkali tolerance (SAT) are essential for sustainable agriculture. To explore the genomic basis underlying SAT in rice, we integrate genome-wide association study (GWAS) with selective sweep analysis using a core population consisting of 234 cultivars grown in the saline and normal fields across three consecutive years and identify 70 genes associated with SAT with signals of selection and evolution between subpopulations of tolerance and sensitivity. We detected and subsequently characterized GATA19 trans-regulated SAT1/OsCYL4 that regulated SAT through reactive oxygen species (ROS) scavenging pathway. Our results provide a comprehensive insight into genome-wide natural variants and selection sweep underlying saline-alkali tolerance and pave avenues for SAT breeding through genome editing and genomic selection in rice.

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