forelimb bud ectoderm |
 |
detected |
| regional | Transcripts are localised to the ventral limb ectoderm and in slightly later-stage embryos to the apical ectodermal ridge. |
1st branchial arch maxillary component |
 |
detected |
| graded | Expressed in a graded fashion in outgrowing regions of the facial primordia. |
1st branchial arch mandibular component |
 |
detected |
| graded | Expressed in a graded fashion in outgrowing regions of the facial primordia. |