Euphorbiaceae has 218 genera and about 6,754 species, which are evolutionarily diverse and have various shape characteristics. Since the total fatty acid content in Euphorbiaceae seeds is about 45%, and the molecular composition of each fatty acid is close to ideal biodiesel, Euphorbiaceae plants have attracted much attention as energy plants. More than 400 cultivars have been introduced in China, and they have become important medicinal and economic crops in the southwest.
     With the continuous accumulation of omics data in Euphorbiaceae species, we have launched a comprehensive upgrade of the original Euphorbiaceae database (http://eupdb.liu-lab.com/), resulting in the release of EupDB V2.0 (http://eupdb2.liu-lab.com/).Based on the original version, the new release incorporates genomic and transcriptomic data from additional species (Vernicia montana, Triadica sebifera, Speranskia yunnanensis, Mercurialis annua, Euphorbia tirucalli, Euphorbia peplus, Excoecaria agallocha ), and expands resources for lncRNAs, miRNAs, and chloroplast genomes. Notably, it enriches GWAS and QTL data and predicts conserved regions of GWAS loci, significantly enhancing data coverage. In terms of functionality, EupDB V2.0 adds modules for lncRNAs, SSR markers, chloroplast genomes, conserved GWAS region search, and primer design, further strengthening support for functional genomics research and molecular breeding in Euphorbiaceae.