# Plant Trait Ontology (PTO)

> A controlled vocabulary to describe phenotypic traits in plants. Each trait is a distinguishable...

- Page: https://library.schematica.io/model/7dd48f6ddb6042ac82f14f468c8456c5
- Model type: Ontology
- License: CC BY 4.0
- Access type: Free
- Access method: Download
- Model size: Mid
- Formats: OWL
- External link: https://bioportal.bioontology.org/ontologies/PTO
- Contact: Pankaj Jaiswal (jaiswalp@oregonstate.edu)
- Listed in library: 2025-06-12
- Last updated: 2023-07-19

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | PTO |
| Description | A controlled vocabulary to describe phenotypic traits in plants. Each trait is a distinguishable feature, characteristic, quality or phenotypic feature of a developing or mature plant, or a plant part. |
| Format | OWL |
| Categories | Phenotype, Plant |
| Groups | OBO Foundry |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 1,706 |
| Individuals | 0 |
| Properties | 1 |
| Max Depth | 12 |
| Max Child Count | 33 |
| Average Child Count | 3 |
| Classes With One Child | 163 |
| Classes With More Than 25 Children | 3 |
| Classes With No Definition | 102 |

## Projects using PTO

- [MeRy-B](https://bioportal.bioontology.org/projects/MeRy-B)
- [Plant Ontology](https://bioportal.bioontology.org/projects/Plant_Ontology)
- [Computational Biology Institute of Montpellier](https://bioportal.bioontology.org/projects/IBC)
- [Maize Genetics and Genomics Database](https://bioportal.bioontology.org/projects/MaizeGDB)

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Source: https://library.schematica.io/model/7dd48f6ddb6042ac82f14f468c8456c5