Acta Agriculturae Boreali-Sinica ›› 2023, Vol. 38 ›› Issue (4): 1-10. doi: 10.7668/hbnxb.20193892

Special Issue: Corn Drought and water saving Biotechnology Hot Article

• Crop Genetics & Breeding·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Molecular Characteristics,Subcellular Localization and Expression Analysis of Maize bZIP Transcription Factor ZmbZIP26 in Response to Abiotic Stress

CAO Liru1,2, MA Chenchen1,2, PANG Yunyun1, YE Feiyu1,2, WANG Zhenhua1,2, LU Xiaomin1,2   

  1. 1 Grain Crop Research Institute,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China
    2 The Shennong Laboratory,Zhengzhou 450002,China
  • Received:2023-04-02 Published:2023-08-28

Abstract:

bZIP transcription factors are widely found in plants and play an important role in regulating plant growth and development and abiotic stress response.In order to explore the functional role of bZIP transcription factor in maize drought stress response,transcriptome sequencing technology was used to analyze the expression changes of transcription factors in maize seedlings treated with drought stress for 5 days and rehydration for 3 days,and a bZIP transcription factor(ZmbZIP26)was screened from transcriptome data in response to drought and rewatering treatment.Co-expression network analysis revealed that ZmbZIP26 was at the core node of network regulation.The gene contained a 558 bp open reading frame encoding 185 amino acids,which was a hydrophilic protein.Phylogenetic tree and conserved sequence analysis showed that ZmbZIP26 protein had high homology with homologous proteins of sorghum and Miscanthus,and also had the same conserved motifs at the same amino acid positions.Cis-element analysis showed that the upstream 2 000 bp region of the ATG site contained drought response elements,hormone response elements and light response elements.qRT-PCR analysis showed that ZmbZIP26 was a constitutively expressed gene,which was highly expressed in young stems,female panicles and roots.ZmbZIP26 positively responded to drought,high temperature,high salt and nitrogen stress and the process of restoring,which might play an important role in the process of plant resistance.Subcellular localization analysis revealed that ZmbZIP26 was a nuclear protein localized in the nucleus.Protein interaction prediction showed that ZmbZIP26 might interact with zinc finger protein,serine protein,Ca-dependent protein and glutathione transfer protein to construct a regulatory network,which cooperatively regulated maize growth and development and stress response process.

Key words: Maize, bZIP transcription factor, Drought-restoring treatment, Abiotic stress

Cite this article

CAO Liru, MA Chenchen, PANG Yunyun, YE Feiyu, WANG Zhenhua, LU Xiaomin. Molecular Characteristics,Subcellular Localization and Expression Analysis of Maize bZIP Transcription Factor ZmbZIP26 in Response to Abiotic Stress[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(4): 1-10. doi: 10.7668/hbnxb.20193892.

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