华北农学报 ›› 2024, Vol. 39 ›› Issue (1): 72-82. doi: 10.7668/hbnxb.20194000

所属专题: 板栗 抗旱节水 生物技术 果树专题

• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

板栗WRKY基因家族鉴定及其在干旱胁迫下的表达分析

赵爽1,2, 葛朝红1, 石鹤飞2, 闵卓1, 王广鹏3, 李伟明1   

  1. 1 河北省农林科学院 棉花研究所,河北 石家庄 050000
    2 沧州职业技术学院,河北 沧州 061000
    3 河北省农林科学院 昌黎果树研究所,河北 昌黎 066600
  • 收稿日期:2023-10-02 出版日期:2024-03-03
  • 通讯作者:
    李伟明(1970—),男,河北赵县人,研究员,硕士,主要从事功能植物遗传育种和耕作栽培研究。
  • 作者简介:

    赵爽(1990—),女,河北保定人,讲师,博士,主要从事经济林生理相关研究。

  • 基金资助:
    河北省农林科学院创新工程项目资助(2-06-02); 河北省农林科学院科技创新人才建设项目; 河北省高层次人才资助项目(B2019003037)

Identification and Expression Analysis of the Chestnut WRKY Gene Family under Drought Stress

ZHAO Shuang1,2, GE Chaohong1, SHI Hefei2, MIN Zhuo1, WANG Guangpeng3, LI Weiming1   

  1. 1 Institute of Cotton,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050000,China
    2 Cangzhou Technical College,Cangzhou 061000,China
    3 Changli Institute of Pomology, Hebei Academy of Agriculture and Forestry Sciences,Changli 066600,China
  • Received:2023-10-02 Published:2024-03-03

摘要:

WRKY转录因子在植物生长和防御反应的调控中发挥着重要作用。为了探究WRKY基因家族在板栗抗旱中的功能,对板栗WRKY基因家族成员进行了鉴定,对其编码蛋白的理化性质、系统发育、结构等进行分析,并通过转录组测序和qRT-PCR技术分析其在干旱胁迫下的表达特征。通过生物信息学技术在板栗中共鉴定到65个WRKY基因家族成员,将其分为Ⅰ、Ⅱ、Ⅲ 3组,其中Ⅱ组根据其结构和系统发育关系分为5个亚组。WRKY基因的结构和保守基序分析表明,外显子数目为1~7个,同一亚组的外显子数目和基序分布类似。WRKY基因保守结构域发生了一定的变异,包括WRKY七肽结构域的缺失,锌指结构的缺失,七肽结构域变异为WRKYGKK、WRKYGRK和WRKYGRK等。转录组测序数据表明,有4个WRKY基因家族成员在样品中没有表达,干旱胁迫诱导表达的WRKY基因家族成员表达量上调的有49个,而表达量下调的WRKY家族成员有11个。以上结果表明,板栗WRKY基因在对干旱胁迫的响应中发挥了重要作用。

关键词: 板栗, 基因家族, WRKY, 干旱胁迫

Abstract:

WRKY transcription factors play an important role in the regulation of plant growth and defence responses.In order to explore the function of WRKY gene family in chestnut under drought resistance,the chestnut WRKY gene family members were identified and the physical and chemical properties,phylogeny and structure of the encoded proteins were analyzed.Transcriptome sequencing and qRT-PCR were used to analyze the expression characteristics of WRKY gene family members under drought stress.The results showed that 65 WRKY gene family members were identified and divided into three groups:Ⅰ,Ⅱ and Ⅲ,among which group Ⅱ was divided into five subgroups according to its structure and phylogenetic relationship.Analysis of WRKY gene structure and conserved motif showed that the number of exons ranged from 1 to 7,and the number of exons and motif distribution in the same subgroup were similar.The conserved domain of WRKY gene had certain variation,including the deletion of WRKY heptapeptide domain,the deletion of zinc finger structure,and the heptapeptide domain was mutated into WRKYGKK,WRKYGRK and WRKYGRK.Transcriptome sequencing data showed that 4 WRKY family members were not expressed in the samples,and 49 WRKY family members were up-regulated under drought stress,while 11 WRKY family members were down-regulated under drought stress.The above results showed that,chestnut WRKY genes played an important role in response to drought stress.

Key words: Chestnut, Gene family, WRKY, Drought stress

引用本文

赵爽, 葛朝红, 石鹤飞, 闵卓, 王广鹏, 李伟明. 板栗WRKY基因家族鉴定及其在干旱胁迫下的表达分析[J]. 华北农学报, 2024, 39(1): 72-82. doi: 10.7668/hbnxb.20194000.

ZHAO Shuang, GE Chaohong, SHI Hefei, MIN Zhuo, WANG Guangpeng, LI Weiming. Identification and Expression Analysis of the Chestnut WRKY Gene Family under Drought Stress[J]. Acta Agriculturae Boreali-Sinica, 2024, 39(1): 72-82. doi: 10.7668/hbnxb.20194000.

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