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Relations Ontology
Last uploaded:
January 26, 2026
| Acronym | OBOREL |
| Visibility | Public |
| Description | 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., The OBO Relations Ontology (RO) is a collection of OWL relations (ObjectProperties) intended for use across a wide variety of biological ontologies. |
| Status | Production |
| Format | OWL |
| Contact | Chris Mungall ([email protected]) |
| Creation date | January 26, 2026
|
| Deprecated |
false
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|
| Homepage |
https://github.com/oborel/obo-relations/
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|
| License | |
| Object creation date property |
http://purl.org/dc/elements/1.1/created
http://purl.org/dc/elements/1.1/created
|
| Object modification date property |
http://purl.org/dc/elements/1.1/modified
http://purl.org/dc/elements/1.1/modified
|
| Root of obsolete branch |
http://www.geneontology.org/formats/oboInOwl#ObsoleteClass
http://www.geneontology.org/formats/oboInOwl#ObsoleteClass
|
| Submission date | January 26, 2026
|
| Version IRI |
http://purl.obolibrary.org/obo/ro/releases/2025-12-17/ro.owl
http://purl.obolibrary.org/obo/ro/releases/2025-12-17/ro.owl
|
| Version information |
2025-12-17
See more...
|
| uri |
http://purl.obolibrary.org/obo/ro.owl
http://purl.obolibrary.org/obo/ro.owl
|
| Version | Released | Uploaded | Downloads |
|---|---|---|---|
| 2025-12-17 (Parsed, Indexed, Metrics, Annotator) | 01/26/2026 | 01/26/2026 | OWL | CSV | RDF/XML | Diff |
| 2025-06-24 (Archived) | 09/09/2025 | 09/09/2025 | OWL | Diff |
| 2025-03-05 (Archived) | 03/05/2025 | 03/05/2025 | OWL | Diff |
| 2024-04-24 (Archived) | 05/01/2024 | 05/01/2024 | OWL | Diff |
| 2024-02-13 (Archived) | 02/15/2024 | 02/15/2024 | OWL | Diff |
| 2023-08-18 (Archived) | 08/18/2023 | 08/18/2023 | OWL | Diff |
| 2023-06-28 (Archived) | 07/03/2023 | 07/03/2023 | OWL | Diff |
| 2023-02-22 (Archived) | 02/22/2023 | 02/22/2023 | OWL | Diff |
| 2023-02-19 (Archived) | 02/19/2023 | 02/19/2023 | OWL | Diff |
| 2023-01-04 (Archived) | 01/05/2023 | 01/05/2023 | OWL | Diff |
| 2022-10-26 (Archived) | 10/26/2022 | 10/26/2022 | OWL | Diff |
| 2022-09-07 (Archived) | 09/07/2022 | 09/07/2022 | OWL | Diff |
| 2022-07-19 (Archived) | 07/19/2022 | 07/19/2022 | OWL | Diff |
| 2022-05-23 (Archived) | 05/23/2022 | 05/23/2022 | OWL | Diff |
| 2022-04-25 (Archived) | 04/25/2022 | 04/25/2022 | OWL | Diff |
| 2022-02-07 (Archived) | 02/07/2022 | 02/07/2022 | OWL | Diff |
| 2022-01-20 (Archived) | 01/20/2022 | 01/20/2022 | OWL | Diff |
| 2022-01-19 (Archived) | 01/19/2022 | 01/19/2022 | OWL | Diff |
| unknown (Archived) | 12/08/2021 | 12/08/2021 | OWL | Diff |
| unknown (Archived) | 10/28/2021 | 10/28/2021 | OWL | Diff |
| unknown (Archived) | 08/31/2021 | 08/31/2021 | OWL | Diff |
| unknown (Archived) | 08/25/2021 | 08/25/2021 | OWL | Diff |
| unknown (Archived) | 08/05/2021 | 08/05/2021 | OWL | Diff |
| unknown (Archived) | 06/24/2021 | 06/24/2021 | OWL | Diff |
| unknown (Archived) | 03/08/2021 | 03/08/2021 | OWL | Diff |
| unknown (Archived) | 12/18/2020 | 12/18/2020 | OWL | Diff |
| unknown (Archived) | 07/21/2020 | 07/21/2020 | OWL | Diff |
| unknown (Archived) | 02/26/2020 | 02/26/2020 | OWL | Diff |
| unknown (Archived) | 09/26/2019 | 09/26/2019 | OWL | Diff |
| unknown (Archived) | 02/04/2019 | 02/04/2019 | OWL | Diff |
| unknown (Archived) | 10/20/2018 | 10/20/2018 | OWL | Diff |
| unknown (Archived) | 07/11/2018 | 07/11/2018 | OWL | Diff |
| unknown (Archived) | 03/28/2018 | 03/28/2018 | OWL | Diff |
| unknown (Archived) | 03/13/2018 | 03/13/2018 | OWL | Diff |
| unknown (Archived) | 01/05/2018 | 01/05/2018 | OWL | Diff |
| unknown (Archived) | 10/02/2017 | 11/28/2017 | OWL | Diff |
| unknown (Archived) | 05/05/2011 | 05/05/2011 | OBO | Diff |
| unknown (Archived) | 02/15/2011 | 02/15/2011 | OBO |
| 1.1 (Archived) | 12/17/2010 | 12/17/2010 | OBO |
| 1.1 (Archived) | 11/18/2010 | 08/26/2010 | OBO |
| 1.1 (Archived) | 07/30/2008 | 07/30/2008 | OBO |
| more... | |||
No views of OBOREL available
| Classes | 59 |
| Individuals | 91 |
| Properties | 706 |
| Maximum depth | 7 |
| Maximum number of children | 7 |
| Average number of children | 2 |
| Classes with a single child | 10 |
| Classes with more than 25 children | 0 |
| Classes with no definition | 13 |