Genome-wide Analysis of a Plant AT-rich Sequence and Zinc-binding Protein (PLATZ) in Triticum Aestivum
  • Xiaohang He1, Minjie Liu2, Zhengwu Fang1, Dongfang Ma1,2,3,*, Yilin Zhou1,3,*, Junliang Yin1
1 Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, 434025, China
2 Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Institute of Plant Protection, Taiyuan, 030031, China
3 State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
* Corresponding Authors: Dongfang Ma. Email:; Yilin Zhou. Email:
Received 10 July 2020; Accepted 29 December 2020 ;
Plant AT-rich sequence and zinc-binding protein (PLATZ) is a plant transcription factor that has been studied in corn. PLATZ can non-specifically bind to sequences rich in A/T bases to induce transcriptional repression. It is involved in the regulation of dehydration tolerance in seeds. In this study, we performed bioinformatics analysis to identify and characterize wheat PLATZ(TaPLATZ)genes. We identified 49 wheat PLATZ genes by searching the wheat genome by using known PLATZ gene sequences from rice, Arabidopsis, and maize. Phylogenetic analysis on PLATZ gene sequences from different species was performed. We found that PLATZs could be divided into three groups. The chromosome (chr) distribution analysis revealed that the 49 identified wheat PLATZ genes are distributed in 15 chrs. Gene structure and motif analyses indicated that most PLATZ genes possess conserved exon/intron arrangements and motif compositions. Our analysis of transcriptional data indicated that several wheat PLATZ genes may play an important role in abiotic stress resistance given that they are expressed under salt stress. The results of qRT-PCR further confirmed that TaPLATZ is involved in plant abiotic stress and is also related to the cell differentiation of plant tissues. Our results lay the foundation for further studies on the function of the wheat PLATZ gene family.
Transcription factor; PLATZ; abiotic stress; gene expression