木薯ERF基因家族Ⅶ亚族的鉴定与表达分析

Bioinformatics analysis and functional study of cassava ERF gene family Ⅶ subfamily

摘要

为了探究木薯（Manihot esculenta）ERF基因家族Ⅶ亚族在木薯应对生物胁迫中的潜在功能，本研究对该家族进行了全基因组扫描，在木薯基因组中鉴定了161个ERF基因家族成员，将其分为13个亚族。对Ⅶ亚族成员进行保守结构域、启动子顺式作用元件、互作蛋白、靶基因及表达模式分析。结果表明，该亚族成员均含有一个保守的AP2结构域，其启动子区域包含13种与植物生长发育、环境胁迫响应相关的顺式作用元件。表达模式分析发现，MeERF46、MeERF133、MeERF92基因均积极响应Xpm侵染，其中MeERF92表达量变化最显著；WGCNA和蛋白互作网络分析显示MeERF92可能参与了氧化应激过程，而MeERF133广泛参与了糖酵解过程。以上结果为深入研究ERF在木薯应答生物胁迫中的功能和作用机制提供了候选基因。

Abstract

In order to investigate the potential functions of the cassava (Manihot esculenta) Ⅶ subfamily of ERF gene family in response to biotic stress, we identified 161 ERF genes in the cassava genome, which were divided into 13 subfamilies. Analyses were performed on the conserved domains, cis-acting elements in promoter regions, interacting proteins, target genes, and expression patterns of the Ⅶ subfamily members. The results showed that all members of this subfamily contained a conserved AP2 domain, and their promoter regions included 13 types of cis-acting elements related to plant growth and development, and environmental stress responses. Expression pattern analysis revealed that the MeERF46, MeERF133, and MeERF92 genes responded actively to Xpm infection among them, the change of MeERF92 expression was the most significant. WGCNA and protein-protein interaction network analysis indicated that MeERF92 might be involved in the process of oxidative stress, while MeERF133 was widely involved in disease resistance related processes. These findings provide candidate genes for further research into the functions and mechanisms of ERF in cassava's response to biotic stress.

关键词

木薯 / ERF基因家族 / 生物信息学分析 / 表达分析

Key words

Cassava / ERF gene family / bioinformatics analysis / Expressionanalysis

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基金资助

“崖州湾”菁英人才项目(SCKJ-JYRC-2024-19)

海南省博士后研究项目资助(2024-12)