Journal of Integrative Agriculture ›› 2025, Vol. 24 ›› Issue (3): 1044-1064.DOI: 10.1016/j.jia.2024.04.016

所属专题: 小麦耕作栽培Wheat Physiology · Biochemistry · Cultivation · Tillage

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基于生理和转录组分析小麦对冬季夜间增温的响应

  

  • 收稿日期:2023-06-16 接受日期:2023-08-11 出版日期:2025-03-20 发布日期:2025-02-28

Response of wheat to winter night warming based on physiological and transcriptome analyses

Yonghui Fan1, Yue Zhang1, Yu Tang1, Biao Xie2, Wei He1, Guoji Cui1, Jinhao Yang1, 3, Wenjing Zhang1, Shangyu Ma1, Chuanxi Ma1, Haipeng Zhang1#, Zhenglai Huang1#   

  1. 1 College of Agronomy, Anhui Agricultural University/Key Laboratory of Wheat Biology and Genetic Improvement in South Yellow & Huai River Valley, Ministry of Agriculture and Rural Affairs, Hefei 230000, China

    2 Office of Social Cooperation, Anhui Agricultural University, Hefei 230000, China

    3 Xianyang Central Station for Agricultural Technology Extension, Xianyang 712000, China

  • Received:2023-06-16 Accepted:2023-08-11 Online:2025-03-20 Published:2025-02-28
  • About author:Yonghui Fan, E-mail: yonghuifan66@163.com; #Correspondence Zhenglai Huang, E-mail: ahauhzl@163.com; Haipeng Zhang, E-mail: nxyzhp@163.com
  • Supported by:
    This work was supported by the Natural Science Foundation of Anhui Province, China (2008085qc118), the National Natural Science Foundation of China (U19A2021), the Major Science and Technology Special Project of Anhui Province, China (S202003a06020035), and the Jiangsu Collaborative Innovation Center for Modern Crop Production, China (JCIC-MCP).

摘要:

全球变暖的主要特征是非对称性增温,即冬春季和夜间增温幅度大于夏秋季和白天的增温幅度。为明确夜间增温对小麦叶片产生的影响,于2020~2021年的小麦生长季,以春性品种扬麦18和半冬性品种烟农19为试验材料,研究冬季夜间增温对小麦顶展叶的影响。结果表明,处理组夜间平均温度较对照组环境温度增加了1.27℃,并且冬季夜间增温提高了两个小麦品种的产量,提高了两个品种小麦花后蔗糖合成酶(SS)和蔗糖磷酸合成酶(SPS)活性,促进了糖类和可溶性糖的合成。以q-value<0.05和Fold-change>2为筛选标准对差异基因进行分析,对已筛选的差异表达基因进行GO功能注释和KEGG pathway富集分析可知,对照与夜间增温处理下小麦叶片中的差异表达基因主要参与了淀粉和蔗糖代谢、氨基酸的生物合成、碳代谢、植物激素信号转导、氨基糖和核苷酸糖的代谢。经过各个比较组的比对,最终鉴定了14个可能与温度相关的差异表达基因。这些结果通过多种途径展示了小麦对冬季夜间增温条件下植物发育的影响。为小麦对冬季夜间增温反应的分子机制以及小麦对冬季夜间增温响应所需的潜在候选基因提供了新的见解。

Abstract:

Global warming is primarily characterized by asymmetric temperature increases, with greater temperature rises in winter/spring and at night compared to summer/autumn and the daytime.  We investigated the impact of winter night warming on the top expanded leaves of the spring wheat cultivar Yangmai 18 and the semi-winter wheat cultivar Yannong 19 during the 2020–2021 growing season.  Results showed that the night-time mean temperature in the treatment group was 1.27°C higher than the ambient temperature, and winter night warming increased the yields of both wheat cultivars, the activities of sucrose synthase and sucrose phosphate synthase after anthesis, and the biosynthesis of sucrose and soluble sugars.  Differentially expressed genes (DEGs) were identified using criteria of P-value<0.05 and fold change>2, and they were subjected to Gene Ontology (GO) annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses.  Genes differentially expressed in wheat leaves treated with night warming were primarily associated with starch and sucrose metabolism, amino acid biosynthesis, carbon metabolism, plant hormone signal transduction, and amino sugar and nucleotide sugar metabolism.  Comparisons between the groups identified 14 DEGs related to temperature.  These results highlight the effects of winter night warming on wheat development from various perspectives.  Our results provide new insights into the molecular mechanisms of the response of wheat to winter night warming and the candidate genes involved in this process.


Key words: differentially expressed genes , physiology and transcriptome ,  wheat ,  winter night warming