AnnelidaDB: a comprehensive platform of taxonomic and multi-omic resources across annelids.

AnnelidaDB is a species-centred annelid database integrating multi-omics across an updated phylogenetic framework, covering 1121 species including 152 nuclear-genome and 177 mitochondrial-genome datasets.

• Why it matters: Annelid omics data are rapidly expanding but scattered across repositories and papers, limiting comparative studies of evolution, regeneration, and host–microbe interactions.
• What they did: The platform integrates genomes, mitochondrial genomes, transcriptomes, proteomes, epigenomes, single-cell datasets, symbiont genomes, and comparative synteny, and provides tools like BLAST, gene search, and interactive single-cell atlases.
• The result: The current release includes 591 transcriptomes, 5 single-cell datasets totaling 209 802 cells, 30 bacterial symbiont genomes, and synteny against 20 Annelida linkage groups, enabling accessible comparative analyses.

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