Genome-Wide Analysis of the Maize LBD Gene Family Reveals a Role for ZmLBD12 in the Development of Lateral Roots

文献类型： 外文期刊

第一作者： Wang, Shifeng

作者： Wang, Shifeng;Wang, Yang;Zhong, Jianbing;Huang, Jun;Xu, Wenlin;Zhai, Lihong;Gong, Qingyou;Li, Gaoke

作者机构：

关键词： maize; LBD gene family; ZmLBD12; function analysis; lateral root

期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）

ISSN： 2223-7747

年卷期： 2025 年 14 卷 16 期

页码：

收录情况： SCI

摘要： The growth and yield of the aboveground parts of maize (Zea mays L.) are closely associated with development of the root system. LBD (Lateral Organ Boundaries Domain) transcription factors are crucial for the regulation of lateral organ development in plants. However, to date, little information has been uncovered about the LBD gene family in maize. In this research, a genome-wide identification revealed 45 LBD gene members in maize. The subsequent phylogeny, structure, and profiles of expression were analyzed. These genes were found to be dispersed across all 10 maize chromosomes and expressed in diverse tissues, including the roots, leaves, stems, pericarp, and vegetative meristems. Notably, ZmLBD12 exhibited specific expression in roots. Subsequent over-expression of ZmLBD12 in Arabidopsis thaliana demonstrated its role in lateral root development, identifying it as a candidate gene for further investigation of root development in maize. Our findings provide a systematic analysis of ZmLBD genes and highlight ZmLBD12 as a potential target gene for developing high-yielding, lodging-resistant maize varieties.

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