Genome-Wide Identification and Expression Analysis of the Class III Peroxidase Gene Family in Potato (Solanum tuberosum L.)
文献类型： 外文期刊
作者： Yang, Xuanshong 1 ; Yuan, Jiazheng 3 ; Luo, Wenbin 4 ; Qin, Mingyue 1 ; Yang, Jiahan 1 ; Wu, Weiren 2 ; Xie, Xiaofang 1 ;
作者机构： 1.Fujian Agr Forestry Univ, Coll Life Sci, Fuzhou, Peoples R China
2.Fujian Agr Forestry Univ, Fujian Key Lab Crop Breeding Design, Fuzhou, Peoples R China
3.Fayetteville State Univ, Dept Biol & Forens Sci, Fayetteville, NC 28301 USA
4.Fujian Acad Agr Sci, Crop Inst, Fuzhou, Peoples R China
关键词： potato; class III peroxidase; phylogenetic analysis; expression pattern; abiotic stress
期刊名称：FRONTIERS IN GENETICS （ 影响因子：4.599； 五年影响因子：4.888 ）
ISSN：
年卷期： 2020 年 11 卷
页码：
收录情况： SCI
摘要： Class III peroxidases (PRXs) are plant-specific enzymes and play important roles in plant growth, development and stress response. In this study, a total of 102 non-redundant PRX gene members (StPRXs) were identified in potato (Solanum tuberosum L.). They were divided into 9 subfamilies based on phylogenetic analysis. The members of each subfamily were found to contain similar organizations of the exon/intron structures and protein motifs. The StPRX genes were not equally distributed among chromosomes. There were 57 gene pairs of segmental duplication and 26 gene pairs of tandem duplication. Expression pattern analysis based on the RNA-seq data of potato from public databases indicated that StPRX genes were expressed differently in various tissues and responded specifically to heat, salt and drought stresses. Most of the StPRX genes were expressed at significantly higher levels in root than in other tissues. In addition, real-time quantitative PCR (qRT-PCR) analysis for 7 selected StPRX genes indicated that these genes displayed various expression levels under abiotic stresses. Our results provide valuable information for better understanding the evolution of StPRX gene family in potato and lay the vital foundation for further exploration of PRX gene function in plants.
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