Table 1 Examples of relationships used in the ZFA and ZFS
From: The zebrafish anatomy and stage ontologies: representing the anatomy and development of Danio rerio
Property | Explanation | Examples |
|---|---|---|
is_a (subclass in OWL) | Subtypes a class by its intrinsic nature. | The heart is_a cavitated compound organ. |
part_of (BFO:0000050) | Describes what structure or system the class is a part of. | The heart is part_of the cardiovascular system. |
develops_from (RO:0002202) | Describes a class by its progenitors. | The heart develops_from heart tube. |
start_stage (RO:0002091) | Describes a class that is observed to begin during a particular stage. | The heart has a start_stage of Pharyngula:High-pec |
end_stage (RO:0002093) | Describes a class that is observed to end during a particular stage. | The heart has an end_stage of Adult |
immediately_preceded_by (RO:0002087) | Describes the order in which process classes occur in time. | Pharyngula:High-pec is immediately_preceded_by Pharyngula:Prim-25 |