首页|穿心莲TCP基因家族全基因组鉴定及非生物胁迫下的表达分析

穿心莲TCP基因家族全基因组鉴定及非生物胁迫下的表达分析

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穿心莲是我国岭南地区重要的药用植物,具有清热解毒、抗菌消炎等功效.TCP基因家族是调控植物生长发育和胁迫响应的一类转录因子.为解析TCP 基因家族成员在穿心莲非生物胁迫下的作用,该研究基于全基因组水平鉴定穿心莲TCP基因家族,并进行了其响应非生物胁迫的表达模式分析.结果表明,穿心莲TCP基因家族共有 23 个成员,氨基酸长度为136~508 aa,相对分子质量为 14 854.71~55 944.90 kDa,等电点为 5.67~10.39,均定位于细胞核,不均匀分布于 13 条染色体上,系统进化分析将其划分为 3 个亚家族:PCF、CIN和CYC/TB1.基因结构和保守基序分析显示绝大多数TCP基因家族成员均含有相同排列顺序的motif 1、motif 2、motif 3 和 1~3 个CDS.启动子顺式作用元件分析表明穿心莲TCP基因家族的转录表达可能受光、激素和逆境胁迫的诱导;结合TCP 基因家族响应逆境胁迫的表达模式分析和qRT-PCR验证,预测到ApTCP4、ApTCP5、ApTCP6 和ApTCP11 可能参与响应干旱、高温和MeJA等多种非生物胁迫.该研究为深入挖掘穿心莲TCP基因响应非生物胁迫下的功能奠定基础.
Genome-wide identification and expression analysis of TCP gene family of Andrographis paniculata under abiotic stress
Andrographis paniculata is an important medicinal plant in the Lingnan region of China,which has the functions of clearing heat,removing toxins,and resisting bacteria and inflammation.The TCP gene family is a class of transcription factors that regulate plant growth,development,and stress response.In order to analysis the role of the TCP gene family under abiotic stress in A.paniculata,this study identified the TCP gene family of A.paniculata at the genome-wide level and analyzed its expression pattern in response to abiotic stress.The results showed that the A.paniculata TCP gene family had 23 members,with length of amino acid ranging from 136 to 508,the relative molecular mass between 14 854.71 and 55 944.90 kDa,and the isoelectric point between 5.67 and 10.39.All members were located in the nucleus and unevenly distributed on 13 chromosomes.Phylogenetic analysis classified them into three subfamilies:PCF,CIN and CYC/TB1.Gene structure and conserved motif analysis showed that most members of the TCP gene family contained motif 1,motif 2,motif 3 in the same order and 1-3 CDS.The analysis of promoter cis-acting elements showed that the transcriptional expression of the TCP gene family in A.paniculata might be induced by light,hormones,and adversity stress.In light of the expression pattern analysis and qRT-PCR verification,the expression of ApTCP4,ApTCP5,ApTCP6,and ApTCP11 involved in response by various abiotic stresses such as drought,high temperature,and MeJA.This study lays the foundation for in-depth exploration of the functions of A.paniculata TCP genes in response to abiotic stress.

Andrographis paniculataTCP transcription factorgene familyabiotic stress

张龙、徐世强、李静宇、胡学博、顾艳、王继华

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广东省农业科学院 作物研究所 广东省农作遗传改良重点实验室, 广东 广州 510640

华中农业大学 植物科学技术学院, 湖北 武汉 430070

穿心莲 TCP转录因子 基因家族 非生物胁迫

广东省农业科学院创新基金项目(2024)科技创新战略专项资金(高水平农科院建设)项目广东省重点领域研发计划项目

R2019PY-JX0032020B020221001

2024

中国中药杂志
中国药学会

中国中药杂志

CSTPCD北大核心
影响因子:1.718
ISSN:1001-5302
年,卷(期):2024.49(2)
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