Genome-Wide Identification of Wheat WRKY Gene Family Reveals That TaWRKY75-A Is Referred to Drought and Salt Resistances

• DOI: 10.3389/fpls.2021.663118
• Publication Date: 2021-06-04T16:30:33Z
• Authors: Hong Ye; Linyi Qiao; Haoyu Guo; Liping Guo; Fei Ren; Jianfang Bai; Yukun Wang
• Keywords: WRKY protein domain; Jasmonic acid

It is well known that WRKY transcription factors play essential roles in plants’ response to diverse stress responses, especially drought and salt stresses. However, a full comprehensive analysis of this family wheat still missing. Here we used silico identified 124 genes, including 294 homeologous copies from high-quality reference genome ( Triticum aestivum ). We also found the TaWRKY gene did not undergo duplication rather than loss during evolutionary process. The members displayed different expression profiles under several abiotic stresses, indicating their unique functions mediation particular responses. Furthermore, TaWRKY75-A was highly induced after polyethylene glycol treatments. ectopic Arabidopsis enhanced tolerance. A comparative transcriptome demonstrated integrated jasmonic acid biosynthetic pathway other potential metabolic pathways increase resistances transgenic . Our study provides valuable insights into will generate useful genetic resource for improving breeding.