Comprehensive characterization and expression profiling of BBX gene family in soybean in response to UV-B stress
文献类型: 外文期刊
作者: Muhammad Azam;Muhammad Usman;Muhammad Aamir Manzoor;Luming Yao;Ma Xiaohong;Zhang Yan;Iftikhar Hussain Shah;Asad Rehman;Muhammad Sanaullah Malik;Junming Sun;Biao Wang
作者机构:
关键词: BBX family;Gene duplication and expression;Genome-wide;Soybean (Glycine max (l.) Merrill);UV-B radiation
期刊名称: Plant Stress
ISSN: -
年卷期: 2024 年 13 卷
页码:
收录情况: 无来源刊(2024版)
摘要: The BBX gene family encodes transcription factors that regulate several biological processes, such as plant growth, development, and stress response. They have been identified and thoroughly studied in numerous plant species. The functional role of the BBX gene family against UV-B stress in soybean has not been well documented. Herein, this study focused on a comprehensive investigation of the GmBBX genes in soybean and their expression patterns in response to UV-B exposure. A total of 184 BBX genes were identified and analyzed to determine the conserved domain. Single and double B-box and CCT domains were found across these proteins, indicating potential functional diversity. The protein physicochemical properties showcased diverse characteristics, highlighting molecular size, stability, and hydrophobicity. Phylogenetic analysis revealed five distinct clades, showcasing a non-uniform distribution of GmBBX genes. Chromosomal mapping showed a non-uniform distribution of GmBBX genes across the 20 chromosomes of soybean. The highest number of genes (26) were found on chromosome 13, whereas chromosomes 5 and 15 displayed the lowest number of genes (3 genes each). Gene structure analysis revealed variations in exon-intron patterns, while motif composition analysis unveiled conserved motifs among GmBBX proteins. Gene duplication indicated that the expansion of the GmBBX genes was linked with tandem and dispersed duplications. Gene ontology analysis revealed enrichment of terms associated with light stimulus, response to abiotic stress, and molecular functions such as zinc ion binding. The promoter region reveals cis-acting elements related to hormones, light, and stress responses. The GmBBX genes exhibited differential expression in response to UV-B stress, suggesting their possible role in plant defense against UV-B stress. This study will provide a solid foundation for further analysis of the molecular mechanisms of GmBBX genes in soybean against UV-B stress.
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