Genome identification of the LRR-RLK gene family in maize (Zea mays) and expression analysis in response to Fusarium verticillioides infection

文献类型： 外文期刊

第一作者： Gao, Yiao

作者： Gao, Yiao;Liu, Ning;Sun, Manli;Cao, Zhiyan;Dong, Jingao;Qu, Qing;Liu, Xinfang

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关键词： Maize LRR-RLK; F. verticillioides; Gene family; Bioinformatics expression analysis

期刊名称：BMC PLANT BIOLOGY （ 影响因子：4.8； 五年影响因子：5.4 ）

ISSN： 1471-2229

年卷期： 2025 年 25 卷 1 期

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收录情况： SCI

摘要： BackgroundPlant leucine-rich repeat receptor-like kinases (LRR-RLKs) are a ubiquitous class of proteins in plants. These receptors are primarily responsible for recognizing pathogen-associated molecular patterns (PAMPs) and are crucial for regulating plant growth, development, and immune responses. Fusarium verticillioides, a significant maize pathogen, causes diseases such as ear rot and stalk rot. However, the expression patterns of LRR-RLK in maize following F. verticillioides infection remain unclear.ResultsA total of 205 maize LRR-RLK gene family members from 15 subfamilies were identified. The gene structures, physicochemical properties, and conserved motifs of these LRR-RLKs were thoroughly analyzed. Co-expression analysis of the LRR-RLK genes suggested that the gene family may have expanded through gene duplication, with relatively high co-expression observed in closely related species. To explore their expression patterns, we conducted comprehensive tissue expression profiling, revealing significant variation in expression levels across different tissues. Using transcriptome sequencing, we obtained the expression profiles of LRR-RLK genes at different time points after F. verticillioides infection in maize. The expression levels of these genes exhibited significant changes following inoculation. Notably, genes such as Zm00001d027645, Zm00001d032116, Zm00001d032244, Zm00001d030323, Zm00001d031427, Zm00001d030981, Zm00001d031201, Zm00001d032344, and Zm00001d032745 showed marked alterations, indicating their potential involvement in resistance to F. verticillioides infection.ConclusionsIn this study, we systematically identified members of the LRR-RLK gene family in maize and characterized the biological information of selected family members. Additionally, our data revealed that certain LRR-RLK family members in maize responded to F. verticillioides infection, with their expression levels being significantly up-regulated.

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