The C. elegans Connectome Toolbox: an open, extensible framework for multimodal connectomic data integration and analysis

The C. elegans Connectome Toolbox unifies multimodal C. elegans connectivity datasets into a standardized, extensible framework, enabling direct exploration and comparison while preserving dataset provenance.

• Why it matters: Existing connectome resources differ in coverage and annotation conventions, making discrepancies hard to interpret as biological versus technical. A single framework is needed to standardize access across anatomical, contact-based, extrasynaptic, and functional modalities.
• What they did: The team built an online resource at https://openworm.org/ConnectomeToolbox plus a Python library to consolidate, curate, and validate historical and newly published multimodal connectivity data. They then demonstrated analyses integrating anatomical connectivity with a neurotransmitter atlas and comparing with computational circuit models.
• The result: The toolbox supports interactive exploration, visualization, and cross-modality comparison while maintaining provenance for each dataset. This enables researchers to assess how multimodal connectivity relates to neurotransmitter organization and computational circuit models in C. elegans.

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