[1]张晶晶,张抗萍,郭建忠,等.向日葵HaDof1基因克隆及表达模式分析[J].江苏农业科学,2026,54(8):44-51.
 Zhang Jingjing,et al.Cloning and expression pattern analysis of HaDof1 gene in Helianthus annuus L.[J].Jiangsu Agricultural Sciences,2026,54(8):44-51.
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向日葵HaDof1基因克隆及表达模式分析()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第8期
页码:
44-51
栏目:
耐干旱基因鉴定
出版日期:
2026-04-20

文章信息/Info

Title:
Cloning and expression pattern analysis of HaDof1 gene in Helianthus annuus L.
作者:
张晶晶张抗萍郭建忠李林卜鹏佳张先平秦旭罗天杨
太原学院园艺园林系,山西太原 030032
Author(s):
Zhang Jingjinget al
关键词:
向日葵HaDof1基因克隆生物信息学表达模式
Keywords:
-
分类号:
S188;S565.501
DOI:
-
文献标志码:
A
摘要:
Dof(DNA binding with one finger)转录因子在植物响应非生物胁迫及生长发育过程中发挥着重要调控作用,为探究Dof转录因子在向日葵中的生物学功能,以向日葵HaDof1基因为研究对象,通过PCR技术获得HaDof1基因序列,并对其编码蛋白的理化特性及结构特征进行一系列生物信息学分析。结果显示,HaDof1基因编码451个氨基酸,分子量为49.29 ku,等电点为5.36,属于不稳定性亲水蛋白,含有典型的zf-Dof保守结构域,预测定位于细胞核,且具有多个潜在磷酸化修饰位点,主要集中在丝氨酸、苏氨酸和酪氨酸残基上。HaDof1蛋白的二级结构,无规则卷曲结构的占比居主导地位,达77.61%,随后依次为α-螺旋和延伸链结构,β-转角结构的比例最低,仅为2.22%。组织特异性表达分析结果表明,HaDof1基因在向日葵茎、种子和苞片中表达水平较高,说明其可能参与多器官发育调控。在干旱和盐胁迫下,HaDof1基因的表达水平与对照呈现显著性差异。结果可为解析Dof蛋白在向日葵抗逆分子网络中的作用提供理论基础,同时为作物抗逆遗传改良提供候选基因资源。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2025-04-26
基金项目:太原学院重点研究项目(编号:23TYZD03);太原学院引进博士科研启动基金(编号:24TYKY004、24TYKY005、24TYKY003)。
作者简介:张晶晶(1994—),女,河南安阳人,博士,讲师,主要从事植物分子育种。E-mail:zhangjj_mhs@163.com。
更新日期/Last Update: 2026-04-20