蒙古冰草ERF转录因子生物信息学及其表达分析

doi:10.11733/j.issn.1007-0435.2022.11.008

草地学报 ›› 2022, Vol. 30 ›› Issue (11): 2910-2921.DOI: 10.11733/j.issn.1007-0435.2022.11.008

• 研究论文 • 上一篇

蒙古冰草ERF转录因子生物信息学及其表达分析

吴婧¹, 范菠菠¹, 张学峰¹, 宋金微¹, 房永雨², 于卓¹, 闫秀秀¹, 赵彦³, 马艳红¹

1. 内蒙古农业大学农学院, 内蒙古呼和浩特 010019;
2. 内蒙古自治区农牧业科学院, 内蒙古呼和浩特 010031;
3. 内蒙古农业大学草原与资源环境学院, 内蒙古呼和浩特 010018

收稿日期:2022-05-16 修回日期:2022-07-24 发布日期:2022-12-02
通讯作者: 马艳红,E-mail:mayanhong80@126.com
作者简介:吴婧(1998-)，女，汉族，内蒙古赤峰人，硕士研究生，主要从事牧草遗传育种研究，E-mail：jingwu530@126.com
基金资助:
国家自然科学基金(31860670)；内蒙古自治区草原英才创新团队资助

Bioinformatics and Expression Analysis of ERF Transcription Factor in Agropyron mongolicum Keng

WU Jing¹, FAN Bo-bo¹, ZHANG Xue-feng¹, SONG Jin-wei¹, FANG Yong-yu², YU Zhuo¹, YAN Xiu-xiu¹, ZHAO Yan³, MA Yan-hong¹

1. College of Agriculture, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010019, China;
2. Inner Mongolia Academy of Agricultural&Animal Husbandry Sciences, Hohhot, Inner Mongolia 010031, China;
3. College of Grassland, Resources Environment, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China

Received:2022-05-16 Revised:2022-07-24 Published:2022-12-02

摘要/Abstract

摘要： ERF(Ethylene responsive factor)家族是植物中一种重要的转录因子，参与植物生长发育和逆境胁迫响应。为筛选蒙古冰草(Agropyron mongolicum Keng)抗旱相关的ERF转录因子，本研究利用生物信息学方法对其理化性质、亚细胞定位、保守基序、进化关系及其二、三级结构进行分析，同时对不同干旱处理下的ERF基因进行表达分析。结果显示：筛选得到18个具有ERF结构特征的蒙古冰草ERF转录因子，蛋白大小在70～404aa之间，分子质量在7447.54～43654.9之间，理论等电点(PI)在4.53～11.10之间，其中有2个疏水性蛋白，其余均为亲水性蛋白，大部分定位于细胞核。ERF转录因子的二、三级结构以无规则卷曲为主，推测motif1，motif2，motif3为保守基序。进化关系比对发现AmERF053，AmERF1B，AmERF4-1，AmERF4-2与已知具有抗旱功能的蛋白具有较高同源性，且在干旱处理的蒙古冰草中显著差异表达。

关键词: 蒙古冰草, ERF转录因子, 抗旱, 生物信息学分析

Abstract: ERF is an important transcription factor family in plants,which are involved in plant growth,development and response to abiotic stresses. In order to screen ERF transcription factors related to drought resistance in A. mongolicum Keng,physicochemical properties,subcellular localization,conserved domain and motif,phylogenetic evolution,expression under different drought treatments and secondary and tertiary structures of ERF genes were analyzed via methods of bioinformatics. Eighteen ERF TFs with ERF structural characteristics were screened,and their protein size was ranged from 70 to 404 amino acid,molecular weight ranged from 7 447.54 to 43 654.9,and theoretical isoelectric point (PI) ranged from 4.53 to 11.10. Two of them were hydrophobic proteins,and the others were hydrophilic proteins. Most of them were localized in the nucleus. The secondary and tertiary structures of ERF TFs were mainly random coil. It was speculated that motif1,2 and 3 were the conserved motifs. Results of phylogenetic evolution analyses showed that the four ERF TFs,such as AmERF053,AmERF1B,AmERF4-1 and AmERF4-2,had high homology with known proteins related to drought resistance,and they were significantly differentially expressed in A.mongolicum under drought treatment.

Key words: Agropyron mongolicum Keng, ERF transcription factors, Drought resistance, Bioinformatics

中图分类号:

S543+.9

吴婧, 范菠菠, 张学峰, 宋金微, 房永雨, 于卓, 闫秀秀, 赵彦, 马艳红. 蒙古冰草ERF转录因子生物信息学及其表达分析[J]. 草地学报, 2022, 30(11): 2910-2921.

WU Jing, FAN Bo-bo, ZHANG Xue-feng, SONG Jin-wei, FANG Yong-yu, YU Zhuo, YAN Xiu-xiu, ZHAO Yan, MA Yan-hong. Bioinformatics and Expression Analysis of ERF Transcription Factor in Agropyron mongolicum Keng[J]. Acta Agrestia Sinica, 2022, 30(11): 2910-2921.

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蒙古冰草ERF转录因子生物信息学及其表达分析

Bioinformatics and Expression Analysis of ERF Transcription Factor in Agropyron mongolicum Keng

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