Genome-wide Identification and Bioinformatics Analysis of DBB Gene Family in Carthamus tinctorius
DBB(Double B-box)transcription factors play an important role in the growth and development of plants.In this study,the bioinformatics methods were used to conduct genome-wide identification and analysis of the safflower(Carthamus tinctorius)DBB gene family.The study showed that the DBB gene family of safflower has 5 subfamilies with 26 members.The sequence analysis showed that safflower DBB protein were comprised of one or two B-box domains in the N-terminus and occasionally a CCT domain in the C-terminus.The results of physical and chemical properties showed that the amino acid number of proteins encoded by DBB gene family members of safflower ranged from 197 to 789,the theoretical isoelectric points were between 4.12 and 7.68,the relative molecular weights were between 21.96 and 87.82 kD,and most of the members were located in the nucleus.Chromosome position indicated that the 26 DBB gene family members were unevenly distributed on the 12 chromosomes of safflower.Analysis of cis-elements in the 1 500 bp promoter region upstream of the safflower DBB genes showed that most of the genes were regulated by light,and some of the genes were regulated by plant hormones such as auxin,gibberellin,and abscisic acid.Protein-protein interaction network analysis showed that members of the safflower DBB gene family may participate in the plant growth and development processes such as photomorphogenesis,flowering,and photoperiod.This study laid the foundation for the subsequent research on the function and regulation mechanism of safflower DBB genes,and also provided the reference genes for the identification of the light-responsive genes in safflower.
Carthamus tinctoriusDBB gene familyBioinformatics analysisGrowth and development