p results in the developmental progression of s iff p is a developmental process and s is an anatomical structure and p causes s to undergo a change in state at some point along its natural developmental cycle (this cycle starts with its formation, through the mature structure, and ends with its loss).

This property and its subproperties are being used primarily for the definition of GO developmental processes. The property hierarchy mirrors the core GO hierarchy. In future we may be able to make do with a more minimal set of properties, but due to the way GO is currently structured we require highly specific relations to avoid incorrect entailments. To avoid this, the corresponding genus terms in GO should be declared mutually disjoint.

http://purl.obolibrary.org/obo/IAO_0000125

http://wiki.geneontology.org/index.php/Ontology_extensions

Chris Mungall