Acta Agriculturae Boreali-Sinica ›› 2023, Vol. 38 ›› Issue (5): 51-59. doi: 10.7668/hbnxb.20194096

Special Issue: Corn Biotechnology

• Crop Genetics & Breeding·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Pan-genomic Identification and Expression Pattern Analysis of the OPR Gene Family in Maize

LI Wenfei1, LI Hongxia1, LIU Yuwei1, GONG Xiaodong1, WEI Shuzhen2, GU Shouqin1   

  1. 1 College of Life Sciences,Hebei Agricultural University,Hebei Key Laboratory of Plant Physiology and Molecular Pathology,Hebei Agricultural Microbial Bioinformation Utilization Technology Innovation Center, Baoding 071001,China
    2 Hengshui University,Hebei Key Laboratory of Wetland Ecology and Conservation,Collaborative Innovation Center for Wetland Conservation and Green Development of Hebei Province,Hengshui 053010,China
  • Received:2023-03-08 Published:2023-10-28

Abstract:

12-oxo-phytodienoic(OPR) acid reductase is a flavin mononucleotide-dependent oxidoreductase,a key enzyme for the synthesis of jasmonic acid,which is important for plant growth, development and defence regulation.In order to study the disease resistance effect of OPR gene in maize, bioinformatics methods were used to identify OPR family members in 31 different maize inbred lines and the expression pattern after infestation by S. turcica was analyzed.The results showed that eight OPR genes were identified in maize line B73 and they were unevenly distributed on seven chromosomes.In addition,these expressed proteins of OPR genes were rich in acidic amino acids.Further analysis revealed that the maize OPR family contained only one structural domain,Oxidored_FMN,and all OPR members contained 10 protein conserved motifs identified.Phylogenetic relationship analysis of OPR family members from maize,wheat,rice and Arabidopsis using MEGA software revealed significant differences in the evolutionary relationships of OPR gene families in these plants.The OPR proteins of maize and those of rice were the closest in evolution.Homology analysis using OrthoFinder software revealed that the maize OPR gene family was highly conserved,with all OPR genes being core genes,but with slightly different functions.According to the previous RNA-seq data of Hebei key Laboratory of Plant Physiology and Molecular Pathology,we analyzed the expression pattern of OPR genes of maize B73 in response to S.turcica infection and verified the gene expression pattern of OPR genes through qRT-PCR.It was found that there were three different expression patterns in the process of S.turcica infection.This study systematically identified the maize pan-genomic OPR family genes and their expression patterns in response to S.turcica infection.

Key words: Maize, OPR family, Phylogenetic, Pan-genome, Expression pattern

Cite this article

LI Wenfei, LI Hongxia, LIU Yuwei, GONG Xiaodong, WEI Shuzhen, GU Shouqin. Pan-genomic Identification and Expression Pattern Analysis of the OPR Gene Family in Maize[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(5): 51-59. doi: 10.7668/hbnxb.20194096.

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