数字农科院2.0

Characterization of the m6A Regulatory Gene Family in Phaseolus vulgaris L. and Functional Analysis of PvMTA in Response to BCMV Infection

文献类型： 外文期刊

作者： Wu, Wenyan;Wang, Xinhua;Liang, Xingrui;Huang, Xinqi;Nawaz, Muhammad Amjad;Jing, Chenchen;Fan, Yaru;Niu, Jingya;Wu, Jing;Feng, Xue

作者机构：

关键词： m(6)A;gene family;common bean;BCMV;PvMTA

期刊名称： INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

ISSN： 1661-6596

年卷期： 2025 年 26 卷 6 期

页码：

收录情况： SCIE（2025版）

摘要： Common bean (Phaseolus vulgaris L.) is known for its high protein, dietary fiber, and various trace element contents, making it a widely grown leguminous crop globally. The bean common mosaic virus (BCMV) poses a significant threat to leguminous crop production, causing substantial yield reductions when common beans are infected. Widely occurring in mRNA, the m(6)Amodification is vital for maintaining mRNA stability, facilitating splicing, enabling nuclear export, supporting polyadenylation, and initiating translation. Recent studies have identified the m(6)A regulatory gene family in various plant species, and its ability to regulate plant virus infection has been confirmed. There is currently insufficient information regarding the m(6)A regulatory gene family in beans and how it responds to BCMV infection. Consequently, we carried out a genome-wide characterization of the m(6)A regulatory gene family in common bean, which led to the identification of 31 potential regulatory gene members associated with m(6)A. According to evolutionary analysis, the increase in the bean m(6)A regulatory gene family appears to be linked to either whole-genome duplication or segmental duplication events. Subsequent investigations into the expression levels of these genes throughout different phases of BCMV infection showed that all candidate genes responded to the infection with various changes in expression. Moreover, we characterized the methyltransferase activity of PvMTA and validated the interactive relationship between mRNA adenosine methyltransferase A (MTA) and mRNA adenosine methyltransferase B (MTB) in common beans. Through overexpressing and silencing PvMTA, we further ascertained that this particular gene has a detrimental impact on the regulation of BCMV infection. This research provides fresh perspectives on the molecular processes that govern the interaction between the common bean and BCMV and aids progress in molecular bean breeding.

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