Bioinformatics Identification of SBP Genes and Expression Profiles in Wheat

doi:10.7668/hbnxb.2018.06.002

Abstract

Abstract: The squamosa promoter binding protein (SBP) gene family is specific transcription factor in plant, containing 79 amino acid residue conserved domains, and is mainly involved in plant growth, development and physiological and biochemical processes.However,genome-wide analysis of the SBP gene family has not been reported in wheat.To further explore the function of the wheat SBP gene, 50 SBP genes, named TaSBPs, were obtained by analyzing the latest genomic data of wheat, and were ranked according to the chromosome number as TaSBP1-TaSBP50. Combined with the published genome data of cultivar Chinese Spring, genes structure, chromosome distribution, conserved domain of proteins, phylogenetic trees and gene expression profiles of the wheat cultivars were analyzed using bioinformatics methods.The results showed that 50 TaSBP genes were distributed on the remaining 19 chromosomes except 4B and 4D chromosomes. The genes encoded 192-1 104 amino acids in length and the number of gene exons was from 2 to 11.The results of tandem repeat analysis showed that fragment replication and tandem repeats were the main patterns of gene expansion in the TaSBP family. The phylogenetic tree of seven crops SBP proteins were divided into four categories, and the structure of the same class was similar; The 50 TaSBP gene families in wheat contained 10 motifs, and it was presumed that the TaSBP gene family should contain motif1, motif2 and motif4.50 TaSBP genes were all detected in 13 tissues and organs, and the expression of TaSBP genes in different tissues were significantly different.

Key words: Wheat, SBP, Bioinformatics, Phylogenetic tree, Expression profiling

CLC Number:

Q78
S512.03

LÜ Liangjie, CHEN Xiyong, HU Mengyun, LIU Yuping, SUN Lijing, MA Le, LI Hui. Bioinformatics Identification of SBP Genes and Expression Profiles in Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2018, 33(6): 8-16. doi: 10.7668/hbnxb.2018.06.002.

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