Unraveling the Molecular Mechanisms and Evolutionary Significance of Raffinose Biosynthesis in Vitis vinifera: A Comprehensive Study of the VvGolS and VvRfS Gene Families

In this study, we investigated the potential roles of the GolS and RfS gene families in grapevine drought tolerance. Through comprehensive bioinformatics analysis, we identified a set of putative genes associated with drought response in grapes. The analysis revealed the conservation of key functional domains and conserved motifs within the gene sequences, suggesting their potential involvement in stress adaptation. Additionally, we performed expression analysis of the identified genes under drought stress conditions, and the results indicated significant up-regulation of several genes, suggesting their potential importance in the grapevine's response to water scarcity. Furthermore, we explored the co-expression network of these genes and identified potential interactions and regulatory relationships, providing insights into the complex regulatory mechanisms underlying drought response in grapes. Our findings have implications for the genetic improvement of grape varieties, particularly in enhancing drought tolerance. By understanding the genetic basis of drought response, we can develop targeted strategies for crop improvement and breed grape varieties with enhanced resilience to water scarcity. In conclusion, this study sheds light on the potential roles of the GolS and RfS gene families in grapevine drought tolerance. The findings underscore the importance of these genes in the adaptation of grapes to water stress conditions. The knowledge gained from this study can be applied to guide future research and breeding efforts aimed at developing drought-tolerant grape varieties, ultimately contributing to the sustainability of grape production and the agricultural industry.

Keywords:

Carbohydrate , Galactinol synthase , gene expression , osmoprotectant , Raffinose synthase