This is the project page for RO, the new OBO Relations Ontology. This ontology replaces OBO_REL
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.
See the site Menu for more info
Use the following URIs to download this ontology:
Note that the source ontology is OWL - the OBO version may have less axioms. Another difference between the two formats is that the OWL makes use of imports, whereas everything is combined into one with the obo file.
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
Examples of usage
Requesting new relations
Use the github issue tracker and/or the obo-relations mail list.
RO includes a number of macro or shortcut relations. E.g
For more information, see Shortcut Relations
RO combines multiple relations from different biological sub-domains into one ontology. Sometimes these relations are very specialized and of limited use outside that domain. For more on extracting specific modules, see:
See RO Modules.
RO replaces OBO_REL
The predecessor of RO was OBO_REL. Many of the relations in OBO_REL have been ceded to BFO. See DifferencesWithOldRO
Coordination with BFO
For details on how RO coordinates with BFO, See ROAndBFO .