华北农学报 ›› 2023, Vol. 38 ›› Issue (1): 168-177. doi: 10.7668/hbnxb.20193378

所属专题: 生物技术

• 资源环境·植物保护 • 上一篇    下一篇

甘蔗E3泛素连接酶基因PRT1的生物信息学及表达模式分析

李姗姗1, 黄梦婷2, 青雨虹1, 许静1, 黄君梅1, 凌辉1, 阙友雄3, 黄宁1,   

  1. 1 玉林师范学院 生物与制药学院,广西高校亚热带生物资源保护与利用重点实验室,广西 玉林 537000
    2 太原师范学院 生物系,山西 晋中 030619
    3 福建农林大学 国家甘蔗工程技术研究中心,福建 福州 350002
  • 收稿日期:2022-05-18 出版日期:2023-02-28
  • 通讯作者:
    黄 宁(1989—),女,山东枣庄人,讲师,博士,主要从事植物分子生物学与分子育种研究。
  • 作者简介:

    李姗姗(1990—),女,广西陆川人,实验师,硕士,主要从事植物分子生物学与基因克隆研究。

    李姗姗、黄梦婷为同等贡献作者。

  • 基金资助:
    国家自然科学基金项目(31901592); 国家自然科学基金项目(32160435); 广西自然科学基金项目(2021JJB130026); 广西自然科学基金项目; 玉林师范学院高层次人才启动项目(G2022ZK15)

Bioinformatics and Expression Pattern Analysis of E3 Ubiquitin Ligase Gene PRT1 in Sugarcane

LI Shanshan1, HUANG Mengting2, QING Yuhong1, XU Jing1, HUANG Junmei1, LING Hui1, QUE Youxiong3, HUANG Ning1,   

  1. 1 College of Biology and Pharmay,Yulin Normal University,Key Laboratory for Conservation and Utilization of Subtropical Bio-Resources,Education Department of Guangxi Zhuang Autonomous Region,Yulin 537000,China
    2 Department of Biology,Taiyuan Normal University,Jinzhong 030619,China
    3 National Engineering Research Center for Sugarcane,Fujian Agriculture and Forestry University,Fuzhou 350002,China
  • Received:2022-05-18 Published:2023-02-28
  • Supported by:
    2020GXNSFDA297016

摘要:

为探究甘蔗 PROTEOLYSIS 1(PRT1)基因与黑穗病菌的互作关系,以甘蔗割手密种和栽培品种为研究对象,通过RT-PCR技术对ScPRT1 (GenBank 登录号:MT747433)基因进行克隆,生物信息学分析、定量PCR、亚细胞定位和基因共表达网络分析。生物信息学分析表明,该基因的cDNA全长为1 621 bp,包含一个长度为1 260 bp,编码419个氨基酸的完整开放读码框;其编码蛋白的分子量为46.56 ku,为酸性、不稳定的亲水蛋白,无信号肽,具有核定位信号;该蛋白包含2个RING结构域和1个ZZ结构域;ScPRT1蛋白的高级结构元件多为无规则卷曲。定量PCR 结果显示,ScPRT1在皮、叶片、芽中的表达量相差不大,在蔗髓中表达量最高。同时该基因的表达受脱落酸胁迫后显著上调;受黑穗病菌胁迫后,在甘蔗抗黑穗病品种中上调表达,在感黑穗病品种中下调表达,都达到了显著水平。亚细胞定位结果揭示,ScPRT1定位于细胞核。寄主甘蔗和病原黑穗病菌的基因共表达网络中,与甘蔗ScPRT1共表达的黑穗病菌基因中,有3个为N端具有芳香族氨基酸残基的黑穗病菌效应蛋白,这暗示它们之间存在直接的相互作用。以上结果表明,ScPRT1在甘蔗激素信号传导以及响应黑穗病菌侵染过程中发挥重要作用。

关键词: 甘蔗, ScPRT1, 泛素连接酶, 生物信息学, 表达模式

Abstract:

In order to explore the interaction between ScPRT1 and Sporisorium scitamineum genes in sugarcane,this study used Saccharum spontaneum and Saccharum as research objects.The ScPRT1(GenBank Accession Number:MT747433)gene was cloned by RT-PCR and was analyzed by bioinformatics,quantitative Real-time PCR and subcellular localization.Bioinformatics analysis showed that the full-length cDNA of the ScPRT1 gene was 1 621 bp,including a complete open reading frame with 1 260 bp in length and encodes 419 amino acids.The ScPRT1 protein with two RING domains and one ZZ domain,was 46.56 ku in molecular weight and was an acidic and unstable hydrophilic protein with nuclear localization signal and no signal peptide.The higher structural elements of protein were mainly random coil.The results of qRT-PCR analysis showed that ScPRT1 was higher expressed in stem pith than in bud,epidermis and leaf.And ScPRT1 was significantly up-regulated under abscisic acid(ABA)stress and in the smut-resistant variety but significantly down-regulated in the smut-susceptible variety under Sporisorium scitamineum stress.The result of subcellular localization showed that ScPRT1 was localized in the nucleus.In the co-expression network between ScPRT1 and Sporisorium scitamineum genes,three genes that encoded effectors with aromatic amino acid residues at the N-terminal were found co-expressing with ScPRT1,and their proteins may interact directly.It is speculated that ScPRT1 plays an important role in sugarcane hormone signal transduction and response to smut infection.

Key words: Sugarcane, ScPRT1, Ubiquitin ligase, Bioinformatics, Expression pattern

引用本文

李姗姗, 黄梦婷, 青雨虹, 许静, 黄君梅, 凌辉, 阙友雄, 黄宁. 甘蔗E3泛素连接酶基因PRT1的生物信息学及表达模式分析[J]. 华北农学报, 2023, 38(1): 168-177. doi: 10.7668/hbnxb.20193378.

LI Shanshan, HUANG Mengting, QING Yuhong, XU Jing, HUANG Junmei, LING Hui, QUE Youxiong, HUANG Ning. Bioinformatics and Expression Pattern Analysis of E3 Ubiquitin Ligase Gene PRT1 in Sugarcane[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(1): 168-177. doi: 10.7668/hbnxb.20193378.

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