江苏农业学报2025，Vol.41Issue(10)：1873-1885,13.DOI:10.3969/j.issn.1000-4440.2025.10.001
小麦TGA转录因子家族全基因组鉴定及其响应非生物胁迫的表达分析
Genome-wide identification of the TGA transcription factor family and ex-pression analysis under abiotic stress in Triticum aestivum L
摘要
Abstract
TGA transcription factors belong to subgroup D of the basic leucine zipper(bZIP)family and are widely involved in various biological processes and signal transduction pathways,playing important roles in plant defense against pathogens,plant growth and development,and responses to different abiotic stresses.In this study,we identified the wheat TGA transcription factor family using whole-genome data of wheat and analyzed various bioinformatics characteristics,inclu-ding gene structures,conserved domains,cis-acting elements,and phylogenetic relationships.Additionally,we explored the expression patterns of some wheat TGA transcription factor genes in different tissues and under various stress treatments using quantitative real-time PCR(qRT-PCR).A total of 38 TaTGA transcription factor genes were identi-fied,which were unevenly distributed across the 21 chro-mosomes of wheat.Phylogenetic analysis classified these TaTGA transcription factors into five subfamilies.Within each subfamily,the gene structures,conserved motifs,and conserved domains of the TaTGA transcription factors were essentially consistent.The analysis of cis-acting elements re-vealed that TaTGA genes contain various types of cis-acting elements,covering functional regions related to plant growth and development,responses to abiotic stresses,and hormone actions.The qRT-PCR results indicated that the relative expres-sion levels of TaTGA genes were differentially affected by abiotic stresses and hormone treatments.The findings of this study provide valuable candidate genes for molecular breeding of stress-resistant wheat and lay a foundation for further research on the functions of TGA transcription factors in plants.关键词
小麦/TGA/转录因子/生物信息学/表达分析Key words
wheat/TGA/transcription factors/bioinformatics/expression analysis分类
农业科技引用本文复制引用
简子林,王自力,秦畅,何方,任明见..小麦TGA转录因子家族全基因组鉴定及其响应非生物胁迫的表达分析[J].江苏农业学报,2025,41(10):1873-1885,13.基金项目
国家自然科学基金项目(32260481) （32260481）
贵州省科技计划项目[黔科合支撑(2022)重点026] （2022）
贵州省粮油作物分子育种重点实验室项目[黔科合中引地(2023)008] （2023）
贵州省高等学校功能农业重点实验室项目[黔教技(2023)007号] （2023）
