Reporter:	lacZ
	Direct Detection

Structure	Level	Pattern	Image	Note
TS19: surface ectoderm	Present		1C	Authors report expression in skin.
TS19: neural tube marginal layer	Present		1C	Expression marginal layers of spinal cord.
TS19: future spinal cord	Present	Regionally restricted	1C	Authors state that the majority of other spinal cord regions are devoid of expression, except for a small region around the central canal.

Structure	Level	Pattern	Image	Note
TS19: surface ectoderm	Present		1D	Expression in skin.
TS19: neural tube marginal layer	Present		1D	Expression in marginal layers of spinal cord.

Structure	Level	Pattern	Image	Note
TS19: future spinal cord	Present	Regionally restricted	1E	No expression in ventral region of spinal cord.

Structure	Level	Pattern	Image	Note
TS21: spinal cord meninges	Present			Authors report that, at later stages (E13.5-E18.5), expression remained highly restricted to the surface of the spinal cord.

Structure	Level	Pattern	Image	Note
TS26: spinal cord	Present	Regionally restricted	1F	Expression highly restricted to surface of spinal cord. Expression in small region just underneath the central canal. No expression in motoneurons in ventral spinal cord.
TS26: dorsal root ganglion	Strong		1F
TS26: vertebral cartilage condensation	Present		1F	Expression in cartilage primordium of vertebra.

Structure	Level	Pattern	Image	Note
TS26: dorsal root ganglion	Strong	Regionally restricted	1G	Expression in dorsal root ganglion, predominantly in Schwann cells or satellite cells.

Structure	Level	Pattern	Image	Note
TS26: spinal cord	Present	Regionally restricted	1H	No expression in motoneurons in ventral spinal cord.

Structure	Level	Pattern	Image	Note
TS26: spinal cord meninges	Present		1I	Expression localized to meninges.

Structure	Level	Pattern	Image	Note
TS26: spinal cord	Strong		1J	No expression in motoneurons in ventral spinal cord.

Structure	Level	Pattern	Image	Note
TS26: diaphragm	Strong		1K	Intense expression in skeletal muscles.

Structure	Level	Pattern	Image	Note
TS26: limb muscle	Strong		1L	Intense expression in skeletal muscles.

Structure	Level	Pattern	Image	Note
TS21: diaphragm	Present		S1A	Expression in skeletal muscles as early as E13.5.

Structure	Level	Pattern	Image	Note
TS23: diaphragm	Present		S1B	Expression in skeletal muscles.

Structure	Level	Pattern	Image	Note
TS26: phrenic nerve	Present	Regionally restricted	S1D	Spotty expression in Schwann cells on surface of phrenic nerve.

Structure	Level	Pattern	Image	Note
TS19: brain ventricular layer	Present			In the brain, expression primarily localized to meninges and ventricular zones.
TS19: primitive meninges	Present			In the brain, expression primarily localized to meninges and ventricular zones.

Structure	Level	Pattern	Image	Note
TS21: brain meninges	Present			In the brain, expression primarily localized to meninges and ventricular zones.
TS21: brain ventricular layer	Present			In the brain, expression primarily localized to meninges and ventricular zones.

Structure	Level	Pattern	Image	Note
TS24: brain meninges	Present			In the brain, expression primarily localized to meninges and ventricular zones.
TS24: brain ventricular layer	Present			In the brain, expression primarily localized to meninges and ventricular zones.

Structure	Level	Pattern	Image	Note
TS26: brain meninges	Present			In the brain, expression primarily localized to meninges and ventricular zones.
TS26: brain ventricular layer	Present			In the brain, expression primarily localized to meninges and ventricular zones.

Structure	Level	Pattern	Image	Note
TS24: retina	Present	Widespread	S2A	Expression in cells across retina, especially in the ganglion cell layer.
TS24: extrinsic ocular muscle	Present		S2A	Expression in extraocular muscle.
TS24: lens	Strong		S2A	Intense expression in lens.

Structure	Level	Pattern	Image	Note
TS24: brain ventricular layer	Present	Regionally restricted	S2B	Expression in brain primarily confined to ventricular zones.