Genome-Wide Identification and Expression Analysis of the Cys2His2 Zinc Finger Protein Gene Family in <i>Flammulina filiformis</i>
2024
Zongjun Tong | Xing Han | Xinlian Duan | Junbin Lin | Jie Chen | Jihong Xiao | Ying Gan | Bingcheng Gan | Junjie Yan
Zinc finger proteins (ZFPs) are essential transcription factors in eukaryotes, particularly the extensively studied C2H2 family, which is known for its involvement in various biological processes. This research provides a thorough examination and analysis of the C2H2-ZFP gene family in <i>Flammulina filiformis</i>. Using bioinformatics tools, 58 <i>FfC2H2-ZFP</i> genes spread across 11 chromosomes were identified and scrutinized in detail for their gene structures, protein characteristics, and phylogenetic relationships. The study of phylogenetics and synteny sheds light on the evolutionary relationships among C2H2-ZFPs in <i>F. filiformis</i> and other fungi, revealing a complex evolutionary past. The identification of conserved cis-regulatory elements in the gene promoter regions suggests intricate functionalities, particularly in the developmental and stress response pathways. By utilizing RNA-seq and qRT-PCR techniques, the expression patterns of these genes were explored across different developmental stages and tissues of <i>F. filiformis</i>, unveiling distinct expression profiles. Notably, significant expression variations were observed in the stipe elongation region and pilei of various sizes, indicating potential roles in fruiting body morphogenesis. This study enhances our knowledge of the C2H2-ZFP gene family in <i>F. filiformis</i> and lays the groundwork for future investigations into their regulatory mechanisms and applications in fungal biology and biotechnology.
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