Comprehensive Identification of HD-Zip Family Genes in Coix lacryma-jobi L. and Their Potential Roles in Response to Abiotic Stress
文献类型： 外文期刊
作者： Wang, Yongle 1 ; Wang, Hongjuan 1 ; Lu, Xianyong 1 ; Yu, Chun 1 ; Jiang, Benli 1 ; Zhu, Jiabao 1 ; Wang, Yujiao 1 ;
作者机构： 1.Anhui Acad Agr Sci, Inst Ind Crops, Hefei 230001, Peoples R China
2.Anhui Agr Univ, Sch Life Sci, Hefei 230036, Peoples R China
关键词：
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 9 期
页码：
收录情况： SCI
摘要： HD-Zip (homeodomain-leucine zipper) transcription factors play a crucial role in plant growth, development, and stress response; however, the HD-Zip gene family of Coix lacryma-jobi L. has not been identified. In this study, a total of 40 HD-Zip gene family members were identified in the genome of Coix. According to phylogenetic analysis, the Coix HD-Zip gene was divided into four subfamilies (I-IV), of which the HD-Zip I subfamily can be further divided into five branches. Moreover, HD-Zip members of the same subfamily usually share similar gene structures and conserved motifs. The transcription factor binding site enrichment analysis showed that there are many motifs for binding with transcription factors such as ERF (Ethylene responsive factor), MYB (v-myb avian myeloblastosis viral oncogene homolog), and ARF (Auxin Response Factor) in the promoter region of the ClHDZ genes. The results of qPCR (Quantitative Polymerase Chain Reaction) and expression profile analysis showed that ClHD-Zip I genes showed different levels of expression under different stress treatments. Among them, ClHDZ4 was located in the nucleus, and its expression pattern was significantly upregulated under salt, drought, and high-temperature stress. In addition, ectopic expression of ClHDZ4 enhanced the growth of yeast strains under drought, salt, or high-temperature treatment. In summary, these results laid a foundation for further research on the resistance function of the Coix HD-Zip gene.
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