Identification of the ERF gene family of Mangifera indica and the defense response of MiERF4 to Xanthomonas campestris pv. mangiferaeindicae

文献类型： 外文期刊

第一作者： Lei, Chen

作者： Lei, Chen;Zhang, He;Lei, Chen;Zhang, Mengting;Wang, Huiliang;Zhang, He;Dang, Zhiguo;Zhu, Min;Chen, Yeyuan;Zhu, Min;Chen, Yeyuan

作者机构：

关键词： Mangifera indica; ERF gene family; Expression profile; JA/ETH signaling pathway; Callose; Defense

期刊名称：GENE （ 影响因子：3.5； 五年影响因子：3.3 ）

ISSN： 0378-1119

年卷期： 2024 年 912 卷

页码：

收录情况： SCI

摘要： An important regulatory role for ethylene-responsive transcription factors (ERFs) is in plant growth and development, stress response, and hormone signaling. However, AP2/ERF family genes in mango have not been systematically studied. In this study, a total of 113 AP2/ERF family genes were identified from the mango genome and phylogenetically classified into five subfamilies: AP2 (28 genes), DREB (42 genes), ERF (33 genes), RAV (6 genes), and Soloist (4 genes). Of these, the ERF family, in conjunction with Arabidopsis and rice, forms a phylogenetic tree divided into seven groups, five of which have MiERF members. Analysis of gene structure and cis -elements showed that each MiERF gene contains only one AP2 structural domain, and that MiERF genes contain a large number of cis -elements associated with hormone signaling and stress response. Collinearity tests revealed a high degree of homology between MiERF s and CsERF s. Tissue-specific and stress-responsive expression profiling revealed that MiERF genes are primarily involved in the regulation of reproductive growth and are differentially and positively expressed in response to external hormones and pathogenic bacteria. Physiological results from a gain-of-function analysis of MiERF4 transiently overexpressed in tobacco and mango showed that transient expression of MiERF4 resulted in decreased colony count and callose deposition, as well as varying degrees of response to hormonal signals such as ETH, JA, and SA. Thus, MiERF4 may be involved in the JA/ETH signaling pathway to enhance plant defense against pathogenic bacteria. This study provides a basis for further research on the function and regulation of MiERF genes and lays a foundation for the selection of diseaseresistant genes in mango.

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