您好，欢迎访问重庆市农业科学院 机构知识库！

Exploring heat stress responses and heat tolerance in rice in the reproductive stage: A dual omics approach

文献类型： 外文期刊

作者： Guan, Yusheng 1 ; Chen, Yun 2 ; Huang, Qianlong 1 ; He, Yongxin 1 ; Li, Xianyong 1 ; Zhu, Zichao 1 ; Xiong, Ying 1 ; Ouyang, Jie 1 ; Jiang, Gang 1 ; Zhang, Yi 2 ; Wang, Chutao 1 ;

作者机构： 1.Chongqing Acad Agr Sci, Chongqing 401329, Peoples R China

2.Yunnan Univ, Res Ctr Perennial Rice Engn & Technol Yunnan, Sch Agr, State Key Lab Conservat & Utilizat Bioresources Yu, Kunming 650091, Peoples R China

关键词： Oryza sativa; Heat stress (HS); Reproductive stage; Transcriptome; Metabolome

期刊名称：PLANT GROWTH REGULATION （ 影响因子：3.9； 五年影响因子：3.8 ）

ISSN： 0167-6903

年卷期： 2025 年

页码：

收录情况： SCI

摘要： High temperatures significantly impact rice (Oryza sativa L.) yield and quality during the reproductive growth stage. To elucidate key genes, metabolites, and key regulatory pathways associated with heat stress responses, we subjected three inbred rice varieties, one heat-tolerant variety (R28) and two heat-sensitive varieties (R18 and Q3B), to high-temperature treatments at the booting, flowering, and grain-filling stages. Through transcriptomic analysis, we identified 48, 148, and 31 genes that were commonly upregulated or downregulated in response to heat stress across the three developmental stages; these genes were differentially expressed between heat-tolerant and heat-sensitive varieties. Cluster analysis and gene annotation revealed key genes and transcription factors involved in heat perception and response, including a gene encoding a blue blue-light Inhibitor, a calmodulin gene potentially involved in heat stress signal transduction, and a unique negative regulatory HSP gene. Metabolomic analysis revealed that the increased abundance of the metabolites eicosatetraenoic acid and arachidonic acid was closely associated with heat tolerance. By performing transcriptomic and metabolomic analyses, we revealed that the flavonoid 3-hydroxylase gene at the booting stage; the fructose and mannose metabolism pathways and the metabolite mannitol at the flowering stage; and the alpha-linolenic acid metabolism pathway at the grain-filling stage are closely related to rice heat tolerance. These findings provide new insights into the mechanisms of rice heat tolerance and may guide the breeding of heat-resistant rice plants in the future.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：重庆市农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台