Journal of Agricultural Big Data ›› 2023, Vol. 5 ›› Issue (2): 16-26.doi: 10.19788/j.issn.2096-6369.230204

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Genome-wide Identification and Expression Analysis of WRKY Gene Family in Five Legumes

CHEN NaiYu1,2(), ZHAO He1, JIANG HuiXin1, LING Lei1,2, YIN YaJie1,2, REN GuoLing1,2,*()   

  1. 1. School of Biological Engineering, Daqing Normal University, Daqing 163712, Heilongjiang, China
    2. Heilongjiang Provincial Key Laboratory of Oilfield Applied Chemistry and Technology, Daqing 163712, Heilongjiang, China
  • Received:2023-04-24 Online:2023-06-26 Published:2023-08-15
  • Contact: REN GuoLing

Abstract:

In order to enhance understanding of the diversity and evolution of WRKY genes in leguminous plants, and to explore the functions of WRKY transcription factor family members and their applications in breeding, in this study, we analyzed the classification, basic physicochemical properties, evolutionary relationship, gene structure, chromosome location, conserved motifs, promoter elements, gene collinearity, expression in five legumes (Glycine max, Cicer arietinum, Phaseolus vulgaris, Medicago truncatula, Lotus japonicus) by using bioinformatics. A total of 185, 61, 90, 108 and 83 WRKY genes were identified, respectively. WRKY protein were identified, and the classification, basic physicochemical properties, evolutionary relationship, gene structure, chromosome location, conserved motifs, promoter elements, gene collinearity, expression analysis were systematically analyzed.The WRKY proteins in all five species were divided into three classes and five subclasses.The WRKY proteins derived from the same evolutionary clade were found to have similar genes and protein structures. There are gene replication events in members of WRKY gene family of the five leguminous plants, and there are significant differences in expression in each tissue.The expression patterns of WRKY genes in different tissues indicate that they may play an important role in the growth and development of leguminous plants.

Key words: Legumes, WRKY gene family, genome identification, phyletic evolution