Term: tail bud anterior-posterior gradient
Name: tail bud
Synonyms: tail bud mesenchyme, tailbud
Definition:
Ontology: Anatomy Ontology [ZFA:0000077]

Name: anterior-posterior gradient
Synonyms:
Definition: Anatomical gradient that is distributed along the anterior-posterior axis.
Ontology: Spatial Ontology [BSPO:0000052]