Probe:	netrin-1 probe8
Probe preparation:	labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS17: neural tube floor plate	Strong		3A
TS17: neural tube lateral wall	Strong	Regionally restricted	3A	Strong expression in the ventricular zone of the spinal cord, excluding only its dorsal quarter
TS17: limb	Strong	Regionally restricted	3A	Stripe of expression at base of limb buds.
TS17: heart	Strong		3A
TS17: somite	Strong		3A

Structure	Level	Pattern	Image	Note
TS17: neural tube floor plate	Strong		3B
TS17: neural tube lateral wall	Strong	Regionally restricted	3B	Strong expression in the ventricular zone of the spinal cord, excluding only its dorsal quarter
TS17: limb	Strong	Regionally restricted	3B	Stripe of expression at base of limb buds.
TS17: dorsal aorta	Strong		3B
TS17: heart	Strong		3B
TS17: somite	Strong		3B

Structure	Level	Pattern	Image	Note
TS17: telencephalon	Strong	Regionally restricted	3D	Strong expression in ventral half of telencephalic neuroepithelium.
TS17: branchial pouch	Strong		3D

Structure	Level	Pattern	Image	Note
TS20: spinal cord floor plate	Strong		3F
TS20: spinal cord ventricular layer	Strong		3F
TS20: spinal cord	Present	Regionally restricted	3F	Additional expression domain in the dorsal horn of the spinal cord.
TS20: spinal cord mantle layer	Weak	Regionally restricted	3F	Lower expression in a few scattered cells in ventral half of mantle layer.

Structure	Level	Pattern	Image	Note
TS20: limb	Strong		3G
TS20: somite	Strong		3G

Structure	Level	Pattern	Image	Note
TS23: spinal cord	Present	Regionally restricted	3I	Expression in the dorsal horn.
TS23: spinal cord floor plate	Strong		3I

Structure	Level	Pattern	Image	Note
TS20: brain ventricular layer	Strong		4A
TS20: ganglionic eminence	Strong		4A

Structure	Level	Pattern	Image	Note
TS20: heart	Present		4A inset

Structure	Level	Pattern	Image	Note
TS23: brain ventricular layer	Present	Regionally restricted	4B	Strongest expression in midline and ventral half of the ventricular zone.
TS23: diencephalon	Present		4B
TS23: ganglionic eminence	Present		4B

Structure	Level	Pattern	Image	Note
TS23: vibrissa	Present	Regionally restricted	4C	Expression in the subcutaneous mesoderm of whisker pads.

Structure	Level	Pattern	Image	Note
TS23: tongue	Present		4D

Structure	Level	Pattern	Image	Note
TS23: optic nerve	Present		4F	Expression in the optic nerve including the optic disc.

Structure	Level	Pattern	Image	Note
TS23: retina	Present	Regionally restricted	4G	Expression in the optic disc.