首页|马铃薯CDF转录因子家族鉴定及逆境响应分析

马铃薯CDF转录因子家族鉴定及逆境响应分析

Identification and Stress Response Analysis of Potato CDF Transcription Factors

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为探究StCDFs转录因子家族在马铃薯逆境响应中的作用,利用生物信息学方法对马铃薯CDF基因家族成员进行系统发育关系、基因结构、保守基序、顺式作用元件、组织特异性表达分析以及激素处理和逆境胁迫响应分析,同时利用低温胁迫处理不同耐寒性品种后进行转录组数据分析及荧光定量验证.结果表明,在马铃薯中共鉴定出5个StCDFs成员(StCDF1、StCDF2、StCDF3、StCDF4、StCDF5);马铃薯CDF基因家族与番茄的亲缘关系较近;基因结构和保守基序分析表明,保守基序Motif 1在马铃薯StCDF蛋白中分布最广,保守性最强;顺式作用元件分析表明,StCDFs基因上游启动子广泛存在激素和胁迫响应元件,其中胁迫响应元件占比最大;StCDFs基因家族成员具有组织特异性表达模式且多数成员响应逆境胁迫处理;根据RNA-seq数据,发现StCDFs积极响应低温胁迫处理,随后进行qRT-PCR验证,发现基因表达变化趋势基本一致,StCDF1、StCDF2、StCDF3在低温胁迫下持续上调表达.
To explore the role of the StCDFs transcription factor family in potato stress response,bioinformatics methods were employed to analyze the phylogenetic relationship,gene structure,conserved motifs,cis-acting elements,tissue-specific expression,hormone and stress response of StCDFs.Simultaneously,transcriptome data and qRT-PCR were used to analyze the transcription levels of StCDFs after different cold-tolerant varieties were treated with low temperature stress.A total of 5 StCDFs members(StCDF1,StCDF2,StCDF3,StCDF4,StCDF5)were identified in potato.The CDF family of potato is closely related to tomato.The analysis of gene structure and conserved Motif revealed that Motif 1 was the most widely distributed and conserved in the potato StCDF.Cis-acting element analysis showed that the upstream promoter of StCDFs gene contained a wide range of hormone and stress response elements,and stress response elements accounted for the largest proportion.Tissue-specific expression analysis revealed that StCDFs exhibited distinct expression patterns in different tissues.Additionally,most of these genes were found to respond to stress treatment.Based on the RNA-seq data,the StCDFs were found to respond positively to low temperature stress treatment.Subsequently,the qRT-PCR was performed to explore the expression levels of StCDFs and found that the expression levels of StCDF1,StCDF2 and StCDF3 were up-regulated under low temperature stress.

potatoCDFtranscription factorshormonelow temperature stresslncRNA

常璟、王泽民、胡运杰、何文静、晋昕、侯乐乐、李萱、艾千一

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甘肃省种子总站,甘肃兰州 730000

干旱生境作物学国家重点实验室,甘肃农业大学,甘肃兰州 730070

甘肃农业大学生命科学技术学院,甘肃兰州 730070

马铃薯 CDF 转录因子 激素 低温胁迫 lncRNA

国家自然科学基金项目干旱生境作物学国家重点实验室开放基金项目甘肃省科技厅青年科技基金项目甘肃省科技厅青年科技基金项目

32260518GSCS-2022-0322JR5RA88221JR7RA844

2024

中国蔬菜
中国农业科学院蔬菜茶卉所

中国蔬菜

CSTPCD北大核心
影响因子:0.545
ISSN:1000-6346
年,卷(期):2024.(9)