QTL mapping by GWAS and functional analysis of OsbZIP72 for cold tolerance at rice seedling stage
文献类型： 外文期刊
作者： Gu, Yunsong 1 ; Guo, Haifeng 1 ; Li, Huahui 2 ; Su, Runbin 1 ; Khan, Najeeb Ullah 1 ; Li, Jin 1 ; Han, Shichen 1 ; Zhao, Weitong 1 ; Ye, Wei 1 ; Gao, Shilei 1 ; Zou, Andong 1 ; Zhang, Meng 1 ; Sun, Xingming 1 ; Zhang, Zhanying 1 ; Zhang, Hongliang 1 ; Yuan, Pingrong 2 ; Li, Jinjie 1 ; Li, Zichao 1 ;
作者机构： 1.China Agr Univ, Coll Agron & Biotechnol, Beijing Key Lab Crop Genet Improvement, Beijing 100193, Peoples R China
2.Yunnan Acad Agr Sci, Inst Food Crop Res, Kunming 650205, Yunnan, Peoples R China
3.Sanya Inst China Agr Univ, Sanya 572025, Hainan, Peoples R China
4.Hainan Acad Agr Sci, Sanya Inst, Sanya 572025, Hainan, Peoples R China
关键词： Rice; GWAS; Cold tolerance; OsbZIP72; ROS
期刊名称：CROP JOURNAL （ 影响因子：5.6； 五年影响因子：6.0 ）
ISSN： 2095-5421
年卷期： 2024 年 12 卷 6 期
页码：
收录情况： SCI
摘要： Rice is a major crop susceptible to chilling stress. The identification of quantitative trait loci and genes for cold tolerance is crucial for the rice breeding. Of 30 quantitative-trait loci affecting seedling cold tolerance identified in a genome-wide association study of 540 rice accessions, OsbZIP72 was assigned as the causative gene for one, qCTS9.1. A single-nucleotide polymorphism in its promoter accounted for variation in expression between indica and japonica subspecies. The favorable haplotype of OsbZIP72 originated in wild rice and contributed to the expansion of japonica rice to colder habitats. OsbZIP72 positively regulates genes coding reactive oxygen species (ROS)-scavenging proteins and maintains intracellular ROS homeostasis. These findings not only enhanced our understanding of environmental adaptation but also provide novel genetic resources and potential targets for molecular design breeding for cold tolerance in rice. (c) 2024 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NCND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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