Probe:	Ap-2beta probe
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS19: latero-nasal process	Present	Regionally restricted	1B	Expression is seen rostrally above the nasal pits, connecting the lateral nasal prominence expression domain with the medial nasal prominence expression domain. Strong expression is also seen in the medial regions of the lateral nasal prominence.
TS19: medial-nasal process	Present	Regionally restricted	1B	Expression is seen rostrally above the nasal pits, connecting the lateral nasal prominence expression domain with the medial nasal prominence expression domain. Strong expression is also seen on the lateral edges of the medial nasal prominence.
TS19: mandibular process	Present	Regionally restricted	1B	Expression is seen in the lateral region.

Structure	Level	Pattern	Image	Note
TS23: face skin	Present		4A
TS23: vibrissa	Present		4A
TS23: nasal septum	Present		4A	Expression is seen in the perichondrium.
TS23: cranium bone primordium	Present	Regionally restricted	4A	Expression is see in the nasal bone in the vestibule region.
TS23: turbinate bone primordium	Absent		4A	No expression is seen in the maxillary turbinates.
TS23: lateral nasal gland	Present		4C , 4A
TS23: nasal cavity respiratory epithelium	Present	Single cells	4A

Structure	Level	Pattern	Image	Note
TS23: cranium bone primordium	Present	Regionally restricted	4B	Expression is seen in the nasal bones.
TS23: turbinate bone primordium	Present	Regionally restricted	4D , 4B	Expression is seen in the perichondrium and connective tissue in the lateral turbinates.
TS23: nasal septum cartilage	Present	Regionally restricted	4B , 4E	Expression is seen in the perichondrium and chondrocytes. It is seen in more cells in the anterior nasal septum than the posterior nasal septum.
TS23: nasal septum mesenchyme	Present	Regionally restricted	4E , 4B	Expression is seen in connective tissue and adjacent connective tissue.
TS23: olfactory epithelium	Absent		4B , 4E , 4D

Structure	Level	Pattern	Image	Note
TS23: nasal cavity	Present			Expression is seen in the vestibule.
TS23: vibrissa	Present
TS23: nasal septum	Present
TS23: olfactory epithelium	Absent
TS23: nasal cavity respiratory epithelium	Present
TS23: lateral nasal gland	Present