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Summary Anatomy Item Literature (131) Expression Attributions Wiki

Anatomy Term: gill primordium
XAO ID: 0000448
Synonyms: gill, external gill anlage
Definition: "A swelling from the 3rd visceral arch at NF stage 35 and 36, which co-occurs with a depression between the 3rd and 6th, forming the external gills by NF stage 39."
Stage Range: NF stage 35 and 36 to NF stage 39
Marker Genes:
Develops From:
Anatomy Item Stage Range
branchial arch 1 NF stage 27 to death
branchial arch 2 NF stage 32 to death
mesoderm NF stage 10 to NF stage 66
pharyngeal mesenchyme NF stage 20 to death
Develops Into:
Anatomy Item Stage Range
external gill NF stage 39 to NF stage 53
Parent(s): branchial arch 1, branchial arch 2, mesoderm, pharyngeal mesenchyme


Parent(s): primordium (is_a) pharyngeal region (part_of) respiratory system (part_of)


References: Ontology Lookup Service , XB ANATOMY ONTOLOGY