Probe:	Hoxa5 probe2
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS20: spinal cord	Present	Graded	4D	There is an anterior-to-posterior fall in abundance at the anterior end of the spinal cord. The fall in expression is at prevertebra 1 in dorsal parts and prevertebra 7 in ventral parts of the cord.
TS20: esophagus	Absent		4D
TS20: trachea	Strong		4D

Structure	Level	Pattern	Image	Note
TS20: spinal cord mantle layer	Present	Regionally restricted	5C	Expression is low in central,lateral and dorsal parts but is high in ventral parts.

Structure	Level	Pattern	Image	Note
TS20: C3 vertebral cartilage condensation	Present	Graded	6C	Expression increased from prevertebrae 3-7.
TS20: C4 vertebral cartilage condensation	Present	Graded	6C	Expression increased from prevertebrae 3-7.
TS20: C5 vertebral cartilage condensation	Present	Graded	6C	Expression increased from prevertebrae 3-7.
TS20: C6 vertebral cartilage condensation	Present	Graded	6C	Expression increased from prevertebrae 3-7.
TS20: C7 vertebral cartilage condensation	Strong		6C
TS20: T1 vertebral cartilage condensation	Strong		6C
TS20: T2 vertebral cartilage condensation	Strong		6C
TS20: T3 vertebral cartilage condensation	Strong		6C
TS20: T4 vertebral cartilage condensation	Strong		6C
TS20: T5 vertebral cartilage condensation	Strong		6C
TS20: T6 vertebral cartilage condensation	Strong		6C
TS20: T7 vertebral cartilage condensation	Strong		6C
TS20: L1 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: L2 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: L3 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: L4 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: L5 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: L6 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: S1 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: S2 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: S3 vertebral pre-cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: S4 vertebral pre-cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: T10 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: T11 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: T12 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: T13 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: T8 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.
TS20: T9 vertebral cartilage condensation	Present	Graded	6C	Expression declined in more posterior vertebrae.

Structure	Level	Pattern	Image	Note
TS20: spinal cord	Present	Graded	11F	There is an anterior-to-posterior fall in abundance at the anterior end of the spinal cord. The fall in expression is at prevertebra 1 in dorsal parts and prevertebra 7 in ventral parts of the cord.