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Acta Horticulturae Sinica ›› 2023, Vol. 50 ›› Issue (6): 1269-1283.doi: 10.16420/j.issn.0513-353x.2022-0213

• Genetic & Breeding·Germplasm Resources·Molecular Biology • Previous Articles     Next Articles

Cloning and Cd-resistant Analysis of PsWRKY40 in Potentilla sericea

GAO Pengfei, GAO Bing, FENG Zhenghong, WU Jianhui()   

  1. College of Landscape Architecture,Northeast Forestry University,Harbin 150040,China
  • Received:2022-12-27 Revised:2023-03-13 Online:2023-06-25 Published:2023-06-27
  • Contact: * (E-mail:wujianhui660915@126.com

Abstract:

The full-length cDNA sequence of PsWRKY40 was cloned from Potentilla sericea. The open reading frame of this gene was 978 bp in length,which encoded 325 amino acids,and belonged to the GroupⅡsubfamily of the WRKY family. The expression level of PsWRKY40 significantly increased by NaCl,CdCl2 and mannitol treatments. PsWRKY40 was transformed into Arabidopsis thaliana heterologously,and transgenic plant was obtained. Under the treatment of Cd2+,it was found that the resistance of the transgenic lines was significantly higher than that of the wild type,and transgenic lines had a significantly higher expression level of AtSODAtPOD and AtCAT. The results showed that PsWRKY40 can be induced by Cd2+,so it may participate in the regulation of Cd2+ resistance in Potentilla sericea.

Key words: Potentilla sericea, WRKY, cadmium stress, gene cloning, functional analysis

CLC Number: