|
Display additional annotations [+]
Gene |
Clone |
Species |
Stages |
Anatomy |
emx2
|
|
laevis
|
NF stage 28
|
forebrain
,
hyoid arch
|
dlx2
|
|
laevis
|
NF stage 27
to
NF stage 28
|
pharyngeal arch
,
mandibular arch
,
hyoid arch
,
branchial arch
,
cranial placode
|
dlx2
|
|
laevis
|
NF stage 35 and 36
|
pharyngeal arch
,
mandibular arch
,
hyoid arch
,
branchial arch
|
dlx5
|
|
laevis
|
NF stage 35 and 36
|
pharyngeal arch
,
mandibular arch
,
hyoid arch
,
branchial arch
|
barx1
|
|
laevis
|
NF stage 33 and 34
|
pharyngeal arch
,
mandibular arch
,
hyoid arch
,
branchial arch
|
|
|
Fig. 5. Unique gene expression in the X. laevis PA2. All larvae are shown in lateral view with anterior to left. (A and B) dlx2 is expressed throughout migratory PA CNCCs at (A) st. 27, but at (B) st. 28 it becomes sharply downregulated in the dorsal PA2 (the future columella; arrow in B). (C) Coinciding with dlx2 down-regulation, emx2 is expressed at st. 28 in the dorsal PA2 (arrow). At st. 35/36, (D) dlx2 and (E) dlx5 uniquely share part of their dorsal boundary in PA2. Orange and yellow dotted lines show the boundary of dlx2 and dlx5, respectively, while the red solid line indicates their shared border. (F) barx1, and (G) sox9-a also display conspicuous down-regulation in the dorsal PA2 at st. 33/34 (arrows in F and G). |