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Comprehensive bioinformation analysis of homeodomain-leucine zipper gene family and expression pattern of HD-Zip I under abiotic stress in Salixsuchowensis

文献类型： 外文期刊

作者： Wang, Yujiao 1 ; Wang, Hongjuan 1 ; Yu, Chun 1 ; Yan, Xiaoming 1 ; Chu, Jiasong 1 ; Jiang, Benli 1 ; Zhu, Jiabao 1 ;

作者机构： 1.Anhui Acad Agr Sci, Dept Cotton Res Inst, Hefei 230001, Peoples R China

关键词： Salix suchowensis; HD-Zip gene; Comprehensive analysis; Abiotic stress; Expression pattern

期刊名称：BMC GENOMICS （ 影响因子：4.4； 五年影响因子：4.7 ）

ISSN： 1471-2164

年卷期： 2024 年 25 卷 1 期

页码：

收录情况： SCI

摘要： Background Homeodomain-leucine zipper (HD-Zip) transcription factors are plant-specific and play important roles in plant defense against environmental stresses. Identification and functional studies have been carried out in model plants such as rice, Arabidopsis thaliana, and poplar, but comprehensive analysis on the HD-Zip family of Salix suchowensis have not been reported. Results A total of 55 HD-Zip genes were identified in the willow genome, unevenly distributed on 18 chromosomes except for chromosome 19. And segmental duplication events containing SsHD-Zip were detected on all chromosomes except chromosomes 13 and 19. The SsHD-Zip were classified into 4 subfamilies subfamilies (I-IV) according to the evolutionary analysis, and members of each subfamily shared similar domain structure and gene structure. The combination of GO annotation and promoter analysis showed that SsHD-Zip genes responded to multiple abiotic stresses. Furthermore, the results of qPCR analysis showed that the SsHD-Zip I gene exhibited different degrees of expression under salt stress, PEG treatment and heat treatment. Moreover, there was a synergistic effect between SsHD-Zip I genes under stress conditions based on coregulatory networks analysis. Conclusions In this study, HD-Zip transcription factors were systematically identified and analyzed at the whole genome level. These results preliminarily clarified the structural characteristics and related functions of willow HD-Zip family members, and it was found that SsHox34, SsHox36 and SsHox51 genes were significantly involved in the response to various stresses. Together, these findings laid the foundation for further research on the resistance functions of willow HD-Zip genes.

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