Functional Analysis of Zinc Finger Protein Transcription Factor ZmZFP69 Under Low-Temperature Stress at Maize Seedling Stage

文献类型： 外文期刊

第一作者： Li, Si-Nan

作者： Li, Si-Nan;Sun, Yan;Li, Yun-Long;Sun, Ming-Hao;Li, Shu-Jun;Yin, Yue;Yu, Tao;Li, Xin;Cai, Quan;Zhang, Jian-Guo

作者机构：

关键词： zinc finger protein; ZmZFP69; maize; low-temperature stress

期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）

ISSN： 2223-7747

年卷期： 2025 年 14 卷 14 期

页码：

收录情况： SCI

摘要： Maize (Zea mays L.) seedlings are highly susceptible to low-temperature stress, which significantly impacts maize yield and quality. A zinc finger protein transcription factor (ZmZFP69) mutant and a control (B73) maize inbred line were subjected to low-temperature treatment, and changes in the phenotypic characteristics, hormone levels, and other indicators before and after the treatment were systematically identified. Subsequently, a combined RNA-seq and DAP-seq analysis was conducted to explore the influence of ZmZFP69 on the promoters of downstream genes. Finally, the proteins interacting with ZmZFP69 were examined using InterProDesign combined with BiFC and subcellular localization. The zmzfp69 homozygous mutant maize inbred line exhibited enhanced low-temperature tolerance compared to the control. RNA-seq and DAP-seq analyses revealed that ZmZFP69 binds to the ZmAOX2 gene promoter, significantly suppressing its expression. The interaction between ZmZFP69 and the downstream protein ZmBG6 was confirmed by InterProDesign, subcellular localization, and BiFC assays. ZmZFP69 negatively regulates maize seedling low-temperature tolerance by inhibiting ZmAOX2 expression and interacting with ZmBG6.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序