湖北农业科学 ›› 2025, Vol. 64 ›› Issue (6): 220-231.doi: 10.14088/j.cnki.issn0439-8114.2025.06.036

• 生物工程 • 上一篇    下一篇

转录组和代谢组联合解析水稻分蘖期响应淹涝胁迫的分子机制

罗肖郧1,2, 李培德1,2, 郑兴飞1,2, 殷得所1,2, 王红波1,2, 胡建林1,2, 胡鹏1,2, 刘丹1,2, 文艺1,2, 陈东攀1,2, 雷添杰3, 徐得泽1,2   

  1. 1.湖北省农业科学院粮食作物研究所/粮食作物种质创新与遗传改良湖北省重点实验室/农业农村部作物分子育种重点实验室, 武汉 430064;
    2.湖北洪山实验室,武汉 430070;
    3.中国农业科学院农业环境与可持续发展研究所,北京 100081
  • 收稿日期:2025-04-29 出版日期:2025-06-25 发布日期:2025-07-18
  • 通讯作者: 徐得泽(1978-),男,安徽庐江人,研究员,主要从事高档优质稻与专用稻育种研究,(电子信箱)dezexu@163.com。
  • 作者简介:罗肖郧(1990-),男,湖北十堰人,助理研究员,主要从事水稻遗传育种研究,(电话)18827046869(电子信箱)luoxy0916@hbaas.com;共同第一作者,李培德(1981-),男,安徽亳州人,副研究员,主要从事水稻遗传育种及栽培研究,(电话)13477038996(电子信箱)lipeide2003@163.com
  • 基金资助:
    国家重点研发计划项目(2023YFD2300300); 湖北省自然科学基金青年项目(2024AFB406); 湖北省农业科学院青年科学基金项目(2024NKYJJ04); 粮食作物种质创新与遗传改良湖北省重点实验室开放课题(2023lzjj03; 2022lzjj08; 2020lzjj05)

Research on molecular mechanisms of Oryza sativa L. response to waterlogging stress during tillering stage using integrated transcriptome-metabolome analysis

LUO Xiao-yun1,2, LI Pei-de1,2, ZHENG Xing-fei1,2, YIN De-suo1,2, WANG Hong-bo1,2, HU Jian-lin1,2, HU Peng1,2, LIU Dan1,2, WEN Yi1,2, CHEN Dong-pan1,2, LEI Tian-jie3, XU De-ze1,2   

  1. 1. Institute of Food Crops/Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement/Key Laboratory of Crop Molecular Breeding,Ministry of Agriculture and Rural Affairs,Hubei Academy of Agricultural Sciences,Wuhan 430064,China;
    2. Hubei Hongshan Laboratory,Wuhan 430070,China;
    3. Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081,China
  • Received:2025-04-29 Published:2025-06-25 Online:2025-07-18

摘要: 以水稻(Oryza sativa L.)品种籼稻鄂中6号和粳稻长粒梗384为材料,在分蘖期进行2/3株高水深淹水处理(持续7 d),通过转录组和代谢组分析胁迫后的基因表达和代谢物变化。转录组分析显示,鄂中6号和长粒梗384中分别鉴定出3 080和1 624个差异表达基因(DEGs),显著富集于碳水化合物生物合成过程、活性氧代谢过程、植物与病原体相互作用及植物激素信号转导等通路。代谢组分析发现,鄂中6号和长粒梗384中苯及其衍生物、有机酸和内酯类化合物等差异代谢物(DAMs)显著富集,涉及二萜类生物合成和类黄酮生物合成等途径。转录组和代谢组联合分析发现,鄂中6号和长粒梗384中有7条共同通路显著富集,分别为代谢途径、次级代谢产物的生物合成、多种植物次级代谢产物的生物合成、二萜类生物合成、亚油酸代谢、苯丙烷类生物合成、类胡萝卜素生物合成。水稻通过激活抗氧化系统、调控激素信号及积累防御性代谢物应对淹涝胁迫。

关键词: 转录组, 代谢组, 淹涝胁迫, 水稻(Oryza sativa L.), 分蘖期, 分子机制

Abstract: Using Oryza sativa L. cultivars Ezhong 6 (indica) and Changligeng 384 (japonica) as materials, plants at the tillering stage were subjected to 2/3 plant height water depth treatment (lasting 7 days). Transcriptome and metabolome analyses were performed to investigate post-stress gene expression and metabolite changes.Transcriptome analysis identified 3 080 and 1 624 differentially expressed genes (DEGs) in Ezhong 6 and Changligeng 384, respectively, which were significantly enriched in carbohydrate biosynthetic process, reactive oxygen species metabolic process, plant-pathogen interaction, and plant hormone signal transduction pathways.Metabolome analysis revealed significant enrichment of differentially accumulated metabolites (DAMs) such as benzene and substituted derivatives, organic acids, and lactones in Ezhong 6 and Changligeng 384, primarily involved in diterpenoid biosynthesis and flavonoid biosynthesis pathways.Integrated transcriptome-metabolome analysis identified seven co-enriched pathways in both cultivars: Metabolic pathways, biosynthesis of secondary metabolites, biosynthesis of various plant secondary metabolites, diterpenoid biosynthesis, linoleic acid metabolism, phenylpropanoid biosynthesis, and carotenoid biosynthesis.Oryza sativa L. responded to waterlogging stress by activating antioxidant systems, regulating hormone signaling, and accumulating defensive metabolites.

Key words: transcriptome, metabolome, waterlogging stress, rice (Oryza sativa L.), tillering stage, molecular mechanisms

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