This is the project page for RO, the OBO Relations Ontology

RO is a collection of relations intended primarily for standardization across ontologies in the OBO Foundry and wider OBO library. It incorporates ROCore upper-level relations such as part of as well as biology-specific relationship types such as develops from.

• RO Guide
• Main RO site

This is the main PURL for the ontology:

• http://purl.obolibrary.org/obo/ro.owl

For all download products, see the RO OBO page

Currently the optimal way to browse RO is to use Protege and inspect ro.owl

See the list of relations on OntoBee -- note that sometimes OntoBee fails to display the full hierarchy

Please cite RO by its GitHub URL https://github.com/oborel/obo-relations or its Zenodo DOI, DOI: 10.5281/zenodo.32899 .

• http://groups.google.com/group/obo-relations

Use the GitHub issue tracker and/or the obo-relations mailing list.

Please see our page on Contributing to RO.