Genome-Wide Identification of the CIPK Gene Family in Jasmine and Expression Analysis Under Salt Stress
Various CBL-interacting protein kinases (CIPKs) are involved in abiotic stress responses in plants. Despite the economic importance of jasmine (<i>Jasminum sambac</i> L. Aiton) and the availability of genome data, there are few reports analyzing the CIPK gene family. In this study, genom...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
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| Series: | Horticulturae |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2311-7524/11/1/40 |
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| Summary: | Various CBL-interacting protein kinases (CIPKs) are involved in abiotic stress responses in plants. Despite the economic importance of jasmine (<i>Jasminum sambac</i> L. Aiton) and the availability of genome data, there are few reports analyzing the CIPK gene family. In this study, genome-wide identification of the CIPK gene family in jasmine was conducted, which would provide valuable information for the function analysis of <i>JsCIPKs</i> regarding participation in growth and development and response to salt stress. In the present study, a total of 17 <i>CIPKs</i> were identified, which were unevenly distributed on eight 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. <i>JsCIPK</i> genes 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 of <i>JsCIPK</i> genes, such as TC-rich repeats, CARE, etc. Furthermore, the expression of <i>JsCIPK</i> genes varied in different organs. Finally, the expression analyses of eight <i>JsCIPKs</i> under salt stress were performed. A systematic analysis of the CIPK gene family and the effect of salt stress on the expression of eight <i>JsCIPK</i> genes in leaves of jasmine was carried out. The expression of <i>JsCIPK6</i> and <i>JsCIPK8</i> was significantly down-regulated and up-regulated by salt treatment, respectively. These findings would lay a foundation for future functional studies of these two genes in jasmine related to salt stress and provide useful resistance genes for the molecular breeding of new varieties of salt-tolerant jasmine. |
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| ISSN: | 2311-7524 |