Genome-wide systematic characterization and its regularity expression reprogramming process of the bZIP transcription factors during trauma response in Camellia sinensis L.

Basic leucine zipper (bZIP) transcription factor genes are regulating numerous k biological processes as well as biotic and abiotic responses. Nonetheless, little is nown about bZIP functioning of the tea tree (Camellia sinensis L.). We characterized 77 bZIP genes in C. sinensis based on transcriptomic and genome data, and divided into eleven groups according to their phylogenetic relationship with those in Arabidopsis, which allowed us to identify 14 pairs of orthologous proteins shared by Arabidopsis and C. sinensis and 19 pairs of paralogous proteins in C. sinensis. Conserved motifs CsbZIP proteins were analyzed showing high group-specificity. Our classification was supported by the predicted specificities based on DNA-binding domains as well as the dimerization property based off characteristic features in the basic and hinge regions and the leucine zipper. Specifically, they indicated that some highly conserved amino acid residues exist across each major group in the tree of land plant life. Expression profiling analyses indicate that the CsbZIP genes are likely involved in response to trauma, and a model was established to display the unique expression of each group during different time intervals after wounding. This work provides useful clues for further functional characterization of the CsbZIP transcription factors.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author