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Genome-Wide Identification and Expression Analysis of WRKY Transcription Factors in Siraitia siamensis

文献类型： 外文期刊

作者： Mu, Detian 1 ; Chen, Wenqiang 1 ; Shao, Yingying 1 ; Wilson, Iain W. 2 ; Zhao, Huan 3 ; Luo, Zuliang 4 ; Lin, Xiaodong 1 ; He, Jialong 1 ; Zhang, Yuan 1 ; Mo, Changming 5 ; Qiu, Deyou 6 ; Tang, Qi 1 ;

作者机构： 1.Hunan Agr Univ, Coll Hort, Changsha 410128, Peoples R China

2.CSIRO Agr & Food, Canberra, ACT 2601, Australia

3.Capital Med Univ, Sch Tradit Chinese Med, Beijing 100069, Peoples R China

4.Chinese Acad Med Sci & Peking Union Med Coll, Inst Med Plant Dev, Beijing 100193, Peoples R China

5.Guangxi Acad Agr Sci, Guangxi Crop Genet Improvement & Biotechnol Lab, Nanning 530007, Peoples R China

6.Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China

关键词： Siraitia siamensis; WRKY transcription factor; bioinformatics analysis; expression pattern; cold stress

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN：

年卷期： 2023 年 12 卷 2 期

页码：

收录情况： SCI

摘要： WRKY transcription factors, as the largest gene family in higher plants, play an important role in various biological processes including growth and development, regulation of secondary metabolites, and stress response. In this study, we performed genome-wide identification and analysis of WRKY transcription factors in S. siamensis. A total of 59 SsWRKY genes were identified that were distributed on all 14 chromosomes, and these were classified into three major groups based on phylogenetic relationships. Each of these groups had similar conserved motifs and gene structures. We compared all the S. siamensis SsWRKY genes with WRKY genes identified from three diverse plant species, and the results implied that segmental duplication and tandem duplication play an important roles in the evolution processes of the WRKY gene family. Promoter region analysis revealed that SsWRKY genes included many cis-acting elements related to plant growth and development, phytohormone response, and both abiotic and biotic stress. Expression profiles originating from the transcriptome database showed expression patterns of these SsWRKY genes in four different tissues and revealed that most genes are expressed in plant roots. Fifteen SsWRKY genes with low-temperature response motifs were surveyed for their gene expression under cold stress, showing that most genes displayed continuous up-regulation during cold treatment. Our study provides a foundation for further study on the function and regulatory mechanism of the SsWRKY gene family.

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