Genome-wide Identification of the CIPK Gene Family in Jasmine and Expression Analysis Under Salt Stress

Abstract

AbstractBackground VariousCIPKgenes are involved in abiotic stress responses in plants. Despite the economic importance of jasmine (Jasminum sambac), and the availability of genome data, there are few reports analyzing theCIPKgene family. The aim of this study was to perform a phylogenetic analysis and characterization of theCIPKgenes in jasmine. Results In the present study, A total of 17CIPKswere identified, which were unevenly distributed on chromosomes. The JsCIPK protein sequences contained 311–781 amino acids, with a molecular weight of 35.05–87.58 kDa. Phylogenetic analysis revealed that the 17 JsCIPKs could be divided into five classical branches.JsCIPKgenes with higher homology showed greater similarity between conserved protein motifs. Collinearity analysis demonstrated that 13 gene pairs in Arabidopsis were collinear with the jasmine sequences. Various hormone-related response- and stress-induced elements were observed in the promoter region ofJsCIPKgenes. Furthermore, the expression ofJsCIPKgenes varied in different organs. Finally, the expression analyses of eightJsCIPKsunder salt stress were performed. Conclusions A systematic analysis of the CIPK gene family in Jasmine and expression analysis under salt stress was provided. These findings lay a foundation for future functional studies of JsCIPKs in jasmine related to growth and development and responses to abiotic stress.