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植物研究 ›› 2021, Vol. 41 ›› Issue (6): 1006-1014.doi: 10.7525/j.issn.1673-5102.2021.06.019

• 研究报告 • 上一篇    下一篇

小黑杨HD-Zip转录因子PsnHB63基因克隆及表达分析

韩连斌, 国庆, 赵凯, 姜廷波, 周博如, 李莉()   

  1. 东北林业大学林木遗传育种国家重点实验室,哈尔滨 150040
  • 收稿日期:2020-09-23 出版日期:2021-11-20 发布日期:2021-10-29
  • 通讯作者: 李莉 E-mail:lili@nefu.edu.cn
  • 作者简介:韩连斌(1996—),女,硕士研究生,主要从事分子生物学研究。
  • 基金资助:
    转基因生物新品种培育重大专项(2018ZX08020002)

Cloning and Expression Analysis of HD-Zip Transcription Factor PsnHB63 in Populus simonii × P. nigra

Lian-Bin HAN, Qing GUO, Kai ZHAO, Ting-Bo JIANG, Bo-Ru ZHOU, Li LI()   

  1. State Key Laboratory of forest tree genetics and breeding,Northeast Forestry University,Harbin 150040
  • Received:2020-09-23 Online:2021-11-20 Published:2021-10-29
  • Contact: Li LI E-mail:lili@nefu.edu.cn
  • About author:HAN Lian-Bin(1996—),famale,master,mainly engages is specialized in plant molecular biology.
  • Supported by:
    Major special project for breeding new varieties of genetically modified organisms(2018ZX08020002)

摘要:

该研究克隆小黑杨(Populus simonii × P. nigra)叶片的PsnHB63基因,生物信息学分析到全长cDNA片段长717 bp,推测编码238个氨基酸,并具有Homeobox/HALZ家族保守结构域的不稳定亲水蛋白。PsnHB63系统进化树与毛果杨、银白杨、胡杨亲缘关系较近。亚细胞定位认证表明定位于细胞核中。在盐和干旱胁迫下,基因均上调表达。表明HD-Zip转录因子PsnHB63基因可能与植物应答高盐和干旱胁迫相关。

关键词: 小黑杨, 转录因子, 亚细胞定位, 胁迫应答

Abstract:

The PsnHB63 gene was cloned from the leaves of Populus simonii × P.nigra, and by using bioinformatics analysis, the results showed that the full-length cDNA fragment was 717 bp in length, encoded 238 amino acids, and had an unstable hydrophilic protein with a conserved domain, belonged to Homeobox/HALZ family. The phylogenetic tree showed that PsnHB63 was closely related to Populus tomentosaPopulus alba and Populus. The PsnHB63 was localized in the nucleus by subcellular localization. Under salt and drought stresses, the expression of PsnHB63 was up-regulated. The results indicated that the HD-Zip transcription factor HB63 might respond to high salt and drought stresses.

Key words: Populus simonii × P.nigra, transcription factors, subcellular localization, stress response

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