Systematic Analysis of Differentially Expressed Maize ZmbZIP Genes between Drought and Rewatering Transcriptome Reveals bZIP Family Members Involved in Abiotic Stress Responses
文献类型： 外文期刊
作者： Cao, Liru 1 ; Lu, Xiaomin 2 ; Zhang, Pengyu 1 ; Wang, Guorui 1 ; Wei, Li 3 ; Wang, Tongchao 1 ;
作者机构： 1.Henan Agr Univ, Coll Agron, Natl Key Lab Wheat & Maize Crop Sci, Zhengzhou 450002, Henan, Peoples R China
2.Henan Acad Agr Sci, Grain Crops Res Inst, Zhengzhou 450002, Henan, Peoples R China
3.Natl Engn Res Ctr Wheat, Zhengzhou 450002, Henan, Peoples R China
关键词： maize; basic leucine zipper; transcriptome analysis; duplication; abiotic stress; subcellular localization
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）
ISSN：
年卷期： 2019 年 20 卷 17 期
页码：
收录情况： SCI
摘要： The basic leucine zipper (bZIP) family of transcription factors (TFs) regulate diverse phenomena during plant growth and development and are involved in stress responses and hormone signaling. However, only a few bZIPs have been functionally characterized. In this paper, 54 maize bZIP genes were screened from previously published drought and rewatering transcriptomes. These genes were divided into nine groups in a phylogenetic analysis, supported by motif and intron/exon analyses. The 54 genes were unevenly distributed on 10 chromosomes and contained 18 segmental duplications, suggesting that segmental duplication events have contributed to the expansion of the maize bZIP family. Spatio-temporal expression analyses showed that bZIP genes are widely expressed during maize development. We identified 10 core ZmbZIPs involved in protein transport, transcriptional regulation, and cellular metabolism by principal component analysis, gene co-expression network analysis, and Gene Ontology enrichment analysis. In addition, 15 potential stress-responsive ZmbZIPs were identified by expression analyses. Localization analyses showed that ZmbZIP17, -33, -42, and -45 are nuclear proteins. These results provide the basis for future functional genomic studies on bZIP TFs in maize and identify candidate genes with potential applications in breeding/genetic engineering for increased stress resistance. These data represent a high-quality molecular resource for selecting resistant breeding materials.
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