Figure 1
From: The zebrafish anatomy and stage ontologies: representing the anatomy and development of Danio rerio
Ontological representation of zebrafish heart development. The ontological representation of heart development includes overlapping start and end stages where the start stage of a developing structure is the same as the end stage of the previous structure, and abutting, where a structure ends the stage before the start stage of the next structure. Overlapping and abutting start and end stage design considerations are illustrated: 1) start_stage and end_stage temporally overlap for ‘primitive heart tube’ (ZFA:0000149) end_stage ‘Pharyngula:Prim-5’ (ZFS:0000029) and ‘heart tube’ (ZFA:0000360) start_stage ‘Pharyngula:Prim-5’ (ZFS:0000029); 2) end and start stages abut for ‘heart tube’ (ZFA:0000360) end_stage ‘Pharyngula:Prim-25’ (ZFS:0000031) and ‘heart’ (ZFA:0000114) start_stage ‘Pharyngula:High-pec’ (ZFS:0000032). Note: several is_a parents omitted from the figure for clarity. Stage arrows indicate stage order not length.