植物学报2025，Vol.60Issue(3)：393-406,14.DOI:10.11983/CBB24118
紫薇GolS家族基因的理化特性与表达特征
Analysis of Physicochemical Characteristics and Expression Characteristics of Lagerstroemia indica GolS Family Genes
摘要
Abstract
INTRODUCTION:Galactinol synthase(GolS)is a key enzyme in the biosynthetic pathway of raffinose family oligosac-charides(RFOs),providing the activated galactosyl group for the biosynthesis and accumulation of RFOs in plants.It plays an important role in plant responses to abiotic stresses. RATIONALE:Although the role of GolS in plant stress responses has been extensively studied,little is known about the molecular characteristics of the GolS gene family in Lagerstroemia indica.This study aims to identify the members of the LiGolS gene family,analyze their physicochemical properties,gene structure,and expression patterns,and explore their potential functions in salt stress response. RESULTS:A total of 13 LiGolS gene family members were identified at the whole-genome level.These genes were un-evenly distributed across 10 chromosomes.The isoelectric points of the 13 LiGolS proteins ranged from 4.75 to 9.45,with molecular weights varying from 37.69 to 46.12 kDa,and amino acid counts ranging from 327 to 404.Subcellular localiza-tion prediction revealed that six proteins were localized to chloroplasts,one to mitochondria,five to the cytoplasm,and one to vacuoles.Additionally,the number of exons in the 13 gene members ranged from 0 to 4.Expression analysis under salt stress showed that all LiGolS genes were upregulated to various degrees after salt treatment,suggesting their po-tential involvement in salt stress response in L.indica. CONCLUSION:This study systematically identified and characterized the LiGolS gene family members in L.indica,in-cluding their physicochemical properties,gene structure,and expression patterns.These results lay the foundation for further functional analysis of LiGolS genes and provide theoretical insights into their roles in stress responses.关键词
紫薇/LiGolS/盐胁迫Key words
Lagerstroemia indica/LiGolS/salt stress引用本文复制引用
徐田甜,杨培建,周晓茜,曹怡,陈艳红,刘国元,张健,魏辉..紫薇GolS家族基因的理化特性与表达特征[J].植物学报,2025,60(3):393-406,14.基金项目
江苏省林业科技创新与推广项目(No.LYKJ[2023]02)、江苏省现代农业重大关键技术攻关项目(No.BE2022420)和南通市基础研究(No.JC2023104) （No.LYKJ[2023]02）
