Genome-wide characterization and expression analysis of the HD-Zip gene family in response to drought and salinity stresses in sesame

文献类型： 外文期刊

第一作者： Wei, Mengyuan

作者： Wei, Mengyuan;Liu, Aili;Zhang, Yujuan;Li, Donghua;Dossa, Komivi;Zhou, Rong;Zhang, Xiurong;You, Jun;Zhang, Yujuan;Zhou, Yong

作者机构：

关键词： Sesame; Transcription factors; HD-ZIP; Abiotic stress; Gene expression

期刊名称：BMC GENOMICS （ 影响因子：3.969； 五年影响因子：4.478 ）

ISSN： 1471-2164

年卷期： 2019 年 20 卷 1 期

页码：

收录情况： SCI

摘要： Background The homeodomain-leucine zipper (HD-Zip) gene family is one of the plant-specific transcription factor families, involved in plant development, growth, and in the response to diverse stresses. However, comprehensive analysis of the HD-Zip genes, especially those involved in response to drought and salinity stresses is lacking in sesame (Sesamum indicum L.), an important oil crop in tropical and subtropical areas. Results In this study, 45 HD-Zip genes were identified in sesame, and denominated as SiHDZ01-SiHDZ45. Members of SiHDZ family were classified into four groups (HD-Zip I-IV) based on the phylogenetic relationship of Arabidopsis HD-Zip proteins, which was further supported by the analysis of their conserved motifs and gene structures. Expression analyses of SiHDZ genes based on transcriptome data showed that the expression patterns of these genes were varied in different tissues. Additionally, we showed that at least 75% of the SiHDZ genes were differentially expressed in responses to drought and salinity treatments, and highlighted the important role of HD-Zip I and II genes in stress responses in sesame. Conclusions This study provides important information for functional characterization of stress-responsive HD-Zip genes and may contribute to the better understanding of the molecular basis of stress tolerance in sesame.

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[1]Genome-wide characterization and expression analysis of the HD-Zip gene family in response to drought and salinity stresses in sesame. Wei, Mengyuan,Liu, Aili,Zhang, Yujuan,Li, Donghua,Dossa, Komivi,Zhou, Rong,Zhang, Xiurong,You, Jun,Zhang, Yujuan,Zhou, Yong. 2019

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