Albeit not an online tool, this resource provides a manually curated MapMan ontology file specific to grapevine (Vitis vinifera). MapMan is a widely used tool for the visualization of systems biology data sets, offering a structured ontology for categorizing genes based on their biological functions. This helps researchers in interpreting large-scale genomic data by mapping genes to specific biological pathways and processes. The file is in GMT (Gene Matrix Transposed) format, a text-based file type commonly used for gene set enrichment analysis that lists gene sets along with their associated gene identifiers and categories, facilitating the organization and analysis of gene expression data. This curated GMT file can be utilized with the R package gprofiler2, enabling users to conduct enrichment analysis with this specialized grape ontology. This way, researchers can identify overrepresented biological categories within their gene lists, providing deeper insights into the functional implications of their data. DOWNLOAD FILE HERE Provider: Kristina Gruden / Živa Ramšak / Tomás Matus Primary contact | tomas.matus (at) gmail.com