Biotechnology Bulletin ›› 2025, Vol. 41 ›› Issue (2): 248-256.doi: 10.13560/j.cnki.biotech.bull.1985.2024-0430

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Bioinformatics and Expression Pattern Analysis of Glutathione S-transferase in Populus davidiana × P. bolleana

HUANG Ying1,2(), YU Wen-jing2, LIU Xue-feng1, DIAO Gui-ping1()   

  1. 1.College of Forestry, Northeast Forestry University, Harbin 150040
    2.Heilongjiang Institute of Forest Protection, Harbin 150040
  • Received:2024-05-09 Online:2025-02-26 Published:2025-02-28
  • Contact: DIAO Gui-ping E-mail:yy122bb@163.com;dgp2003@126.com

Abstract:

Objective To provide a basis for further study of the function of glutathione transferase (GST) gene in woody plants, the expression pattern of GST genes from Populus davidiana × P. bolleana were analyzed. Method The GST genes were cloned and analyzed by bioinformatics of Populus davidiana × P. bolleana. The expression pattern of GST genes under phytohormone and abiotic stresses were analyzed by real-time PCR. Result Three GST gene members from Populus davidiana × P. bolleana were cloned. The lengths of these genes were 678, 660 and 690 bp, encoding amino acids of 225, 219 and 229 aa, respectively. Meanwhile, all three proteins have the typical structure of glutathione transferase, and their promoter regions have elements that can respond to biotic or abiotic stresses as well as plant hormones. In addition, the expressions of these three genes were differently induced by exogenous phytohormones or abiotic stresses. Conclusion All the three PdbGSTs may respond to abiotic stresses or the induction of exogenous phytohormone, indicating that they may play roles in response to the stresses in poplar.

Key words: glutathione transferase, bioinformatics analysis, gene expression pattern, Populus davidiana × P. bolleana