浙江农业学报 ›› 2025, Vol. 37 ›› Issue (8): 1605-1614.DOI: 10.3969/j.issn.1004-1524.20241020

• 作物科学 • 上一篇    下一篇

玉米NF-YA家族基因的生物信息学分析与克隆

关秀生1(), 刘铁山2, 王娟2, 张茂林2, 刘春晓2, 董瑞2, 关海英2, 刘强2, 徐扬1, 何春梅2,*()   

  1. 1.扬州大学 农学院,江苏 扬州 225009
    2.山东省农业科学院 小麦玉米国家工程实验室,农业农村部黄淮海北部玉米生物学与遗传育种重点实验室,山东 济南 250100
  • 收稿日期:2024-11-25 出版日期:2025-08-25 发布日期:2025-09-03
  • 作者简介:关秀生(2000—),女,安徽霍邱人,硕士研究生,研究方向为作物遗传育种。E-mail:mx120220781@stu.yzu.edu.cn
  • 通讯作者: *何春梅,E-mail: chunmeihe11@163.com
  • 基金资助:
    山东省重点研发计划(2022LZGCQY004-2)

Bioinformatics analysis and cloning of NF-YA family genes in maize(Zea mays)

GUAN Xiusheng1(), LIU Tieshan2, WANG Juan2, ZHANG Maolin2, LIU Chunxiao2, DONG Rui2, GUAN Haiying2, LIU Qiang2, XU Yang1, HE Chunmei2,*()   

  1. 1. Agricultural College, Yangzhou University, Yangzhou 225009, Jiangsu, China
    2. National Engineering Laboratory of Wheat and Maize, Key Laboratory of Biology and Genetic Improvement of Maize in Northern Yellow-Huai River Plain, Ministry of Agriculture and Rural Affairs, Shandong Academy of Agricultural Sciences, Jinan 250100, China
  • Received:2024-11-25 Online:2025-08-25 Published:2025-09-03
  • Contact: HE Chunmei

摘要:

核因子Y(nuclear factor Y, NF-Y)由NF-YA、NF-YB和NF-YC亚基组成,能特异性识别靶基因启动子的CCAAT-box,是重要的转录因子。为探索玉米(Zea mays)NF-YA家族成员的功能,利用玉米基因数据库对玉米NF-YA家族16个成员进行生物信息学分析,成功克隆了13个成员,并测定了各成员的组织表达模式与盐胁迫下的表达规律。结果显示,除ZmNF-YA16外,玉米其他NF-YA家族成员均含有高度保守的CBFB_NF-YA结构域。系统进化分析表明,玉米NF-YA家族成员可分为3类。亚细胞定位预测显示,除ZmNF-YA14定位于细胞核和线粒体外,其他成员均定位于细胞核。启动子顺式作用原件分析表明,玉米NF-YA家族成员基因含有多种顺式作用元件。组织表达分析表明,5个玉米NF-YA家族成员表现出组织特异性,ZmNF-YA2、ZmNF-YA4在检测的所有组织中都有表达。盐胁迫条件下,ZmNF-YA5和ZmNF-YA10表现出正响应模式,而ZmNF-YA13则负调控玉米对盐胁迫的响应。本研究初步分析了玉米NF-YA家族成员的基因结构和盐胁迫响应规律,为进一步研究该家族成员的功能提供基础。

关键词: 玉米, 核因子Y(NF-Y), NF-YA亚基, 盐胁迫

Abstract:

The nuclear factor (NF-Y), composed of NF-YA, NF-YB, and NF-YC subunits, specifically recognizes the CCAAT-box in the promoters of target genes and is a critically important transcription factor. To explore the functions of the NF-YA family members in maize (Zea mays), 16 maize NF-YA family members were identified by bioinformatics methods using the maize gene database, and 13 of these members were cloned, and their tissue-specific expression patterns as well as expression profiles under salt stress were determined. The results showed that except for ZmNF-YA16, the other maize NF-YA family members contain a highly conserved CBFB_NF-YA domain. Maize NF-YA family members were classified into three types according to phylogenetic analysis. Subcellular localization prediction indicated that except for ZmNF-YA14, which was localized to both the nucleus and mitochondrion, the other maize NF-YA family members were localized in the nucleus. Promoter cis-element analysis revealed that the genes of maize NF-YA family members contained various cis-acting elements. Tissue expression analysis showed that five NF-YA family members exhibited tissue specificity, while ZmNF-YA2 and ZmNF-YA4 were expressed in all tissues examined. Under salt stress, ZmNF-YA5 and ZmNF-YA10 showed positive responses, while ZmNF-YA13 negatively regulated the maize response to salt stress. This study provided a preliminary analysis of the gene structures and salt stress response patterns of maize NF-YA family members, laying a foundation for further research into the functions of this family.

Key words: maize, nuclear factor Y(NF-Y), NF-YA subunit, salt stress

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