Molecular characterization of SBP-box gene family during floral induction in walnut (Juglans regia L.)

• Published in: Tree genetics & genomes Vol. 16; no. 1
• Main Authors: Zhou, Li, Quan, Shaowen, Ma, Li, Xu, Hang, Yang, Jieping, Niu, Jianxin
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2020; Springer Nature B.V
• Subjects: Arabidopsis; Biological activity; Biomedical and Life Sciences; Biotechnology; Domains; Forestry; Gene expression; Genes; Genome Biology; Juglans regia; Life Sciences; Original Article; Phylogeny; Plant Breeding/Biotechnology; Plant Genetics and Genomics; Proteins; Ribonucleic acid; RNA; Transcription factors; Tree Biology; Walnuts; Phylogenetic analysis; ); SBP-box gene family; Walnut; Cis-element; Transcriptome
• ISSN: 1614-2942; 1614-2950
• DOI: 10.1007/s11295-019-1402-1

SQUAMOSA promoter-binding protein (SBP)-box genes regulate plant-specific transcription factors that play vital roles in diverse biological processes. In this study, we identified 48 SBP-box genes from Juglans regia ( JrSBPs ) based on the transcriptome dataset. Nineteen of these JrSBP s were predicted to be putative target genes of jre-miR156/157 . Phylogenetic tree based on the conserved SBP domains divided the JrSBP s into nine groups, analogous to those from Arabidopsis . JrSBP members within the same group shared similar motifs. Cis-elements analysis implied that JrSBP genes were regulated by light, phytohormones, and stresses. Functions of JrSBP genes were predicted and analyzed by comparing the proteins of JrSBP s and SPL s from Arabidopsis . Expression profile of JrSBP s was analyzed based on RNA-seq and RT-qPCR. The results should provide fundamental information for understanding the roles of JrSBP s during floral induction.