Probe:	Lamb1 cDNA1
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS20: spinal cord	Absent		2B	No expression in neural tissue.
TS20: embryo mesenchyme	Present	Regionally restricted	2B	Expression in mesenchyme cells surrounding the central nervous system destined to become the meninges.
TS20: tail myocoele	Strong		2B	High levels of expression in myotome destined to form skeletal muscle.

Structure	Level	Pattern	Image	Note
TS20: blood vessel	Weak	Regionally restricted	2F	Expression in differentiating capillaries.

Structure	Level	Pattern	Image	Note
TS20: embryo mesenchyme	Strong	Regionally restricted	5B	High levels of expression in mesenchyme cells surrounding ganglia.
TS20: dorsal root ganglion	Present	Regionally restricted	5B	Expression in a subset of cells within the ganglia.
TS20: spinal nerve	Strong		5B	High levels of expression in ganglia fibers and associated nerve roots.
TS20: vertebral cartilage condensation	Absent		5B	No expression in neural arches.
TS20: tail myocoele	Strong		5B	High levels of expression in myotome destined to form skeletal muscle.

Structure	Level	Pattern	Image	Note
TS20: oral region	Strong	Regionally restricted	6B	High levels of expression in mesenchymal cells of the lower jaw and palate.
TS20: tongue	Weak		6B	Localized to ectodermal cells forming the outer layer of the tongue.

Structure	Level	Pattern	Image	Note
TS20: heart atrium	Present		7B
TS20: heart ventricle	Present		7B
TS20: cardiac muscle tissue	Strong		7B	High levels of expression in myocardial cells
TS20: endocardial lining	Present		7B	Slightly lower levels in endothelial cells.
TS20: liver	Weak		7B

Structure	Level	Pattern	Image	Note
TS20: stomach epithelium	Strong		8B	Uniform high expression in epithelial cells and surrounding mesenchyme.
TS20: stomach mesenchyme	Strong		8B	Uniform high expression in epithelial cells and surrounding mesenchyme.
TS20: liver	Weak	Regionally restricted	8B	Lower levels of expression in groups of cells in the epithelium and througout the mesenchyme.

Structure	Level	Pattern	Image	Note
TS20: metanephros	Present	Uniform	9B	Uniform expression in both epithelial and mesenchymal compartments.
TS20: dorsal aorta	Present		9B	Expression in the aorta, essentially the same as in surrounding mesenchyme.