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Plant Growth Regulation

, Volume 87, Issue 2, pp 227–243 | Cite as

Comparative identification, characterization, and expression analysis of bZIP gene family members in watermelon and melon genomes

  • Necdet Mehmet Unel
  • Fadime Cetin
  • Yasin Karaca
  • Yasemin Celik Altunoglu
  • Mehmet Cengiz BalogluEmail author
Original paper
  • 257 Downloads

Abstract

The family of basic leucine zipper (bZIP) transcription factors plays diverse crucial roles in numerous biological processes. Despite the identification of bZIP genes in several plants, to our knowledge, bZIP members in watermelon and melon are yet to be comprehensively investigated. The genomes of watermelon and melon encode 59 ClabZIP and 75 CmbZIP putative genes, respectively. Both bZIP protein family members were phylogenetically grouped into seven subfamilies. The majority of bZIP genes in the same subfamily shared similar gene structures and conserved motifs. Chromosome distribution and genetic analysis revealed that 21 duplication events between ClabZIP genes and 106 duplication events between CmbZIP genes have occurred. Further, the three-dimensional structure and functional annotation of bZIP proteins was predicted. For evaluating the expression patterns of ClabZIP and CmbZIP genes, RNA-seq data available in public databases were analyzed. The expression profiles of selected ClabZIP and CmbZIP genes in root and leaf tissues of drought-stressed watermelon and melon were also examined using qRT-PCR. ClabZIP-57, CmbZIP-52, and CmbZIP-31 genes exhibited the highest expression levels after stress exposure in leaf and root tissues. Gene identification studies like the present study offer new perspectives in the analysis of bZIP protein family members and their functions in plants.

Keywords

Cucumis melo Citrullus lanatus bZIP transcription factor genes Bioinformatics analysis Drought stress Gene expression analysis 

Notes

Author contributions

YCA and MCB conceived the study. FC, NMU and YK performed the experiments and carried out the analysis. YCA and MCB wrote the manuscript.

Compliance with ethical standards

Conflict of interest

The authors declare no competing interests.

Supplementary material

10725_2018_465_MOESM1_ESM.pdf (3.4 mb)
Supplementary material 1 (PDF 3525 KB)

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© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Department of Genetics and Bioengineering, Faculty of Engineering and ArchitectureKastamonu UniversityKastamonuTurkey

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