塔里木大学学报2026，Vol.38Issue(2)：1-9,9.DOI:10.3969∕j.issn.1009-0568.2026.02.001
盐胁迫下辣椒幼苗根系的转录组分析
Transcriptome analysis of pepper seedling roots under salt stress
摘要
Abstract
To explore the molecular mechanism underlying the response of Capsicum annuum L.seedlings to salt stress,this study used the pepper cultivar'Dingcui'as experimental materials and subjected the seedlings to 150 mmol∕L NaCl treatment for 24 h.Transcriptome sequencing was subsequently conducted to analyze the changes in root gene expression profiles.The results showed that salt stress induced 2 214 differentially expressed genes,which were significantly enriched in multiple biological pathways including phenylpropanoid biosynthesis,response to water deprivation,and cutin∕wax biosynthesis.Further analysis of transcription factors re-vealed that the MYB,bHLH and ERF families were markedly activated,with MYB family members(e.g.,Capana02g003250,log2 Fold Change=7.28)occupying a core position in the regulatory network.Collectively,these findings indicate that C.annuum seedlings primarily adapt to salt stress through enhanced secondary metabolism and physical barrier construction driven by a MYB-cen-tered transcriptional regulatory network,and their salt tolerance mechanism exhibits species-specific characteristics.This research pro-vides key candidate genes and a theoretical basis for the genetic improvement of salt tolerance in pepper crops.关键词
辣椒/转录组/盐胁迫/防御反应/代谢通路/转录因子Key words
Capsicum annuum L./transcriptome/salt stress/defense response/metabolic pathway/transcription factor分类
农业科技引用本文复制引用
张瑜萍,王婷婷,杨生保,杨振超,邹学校,戴熊泽,杨莎,谭占明,马新超,李棋,彭玉全..盐胁迫下辣椒幼苗根系的转录组分析[J].塔里木大学学报,2026,38(2):1-9,9.基金项目
新疆生产建设兵团科技计划项目(2025AA016) （2025AA016）
塔里木大学校长基金创新团队项目(TDZKCX202406) （TDZKCX202406）
