Probe:	Ret 9 probe
Probe preparation:	Antisense labelled with S35 RNA

Structure	Level	Pattern	Image	Note
TS17: 4th ventricle	Present	Regionally restricted	3A , 3B/C	Expression was in the roof of the 4th ventricle.
TS17: facio-acoustic ganglion complex	Present		3A , 3D/E
TS17: glossopharyngeal ganglion	Present		3A , 3F

Structure	Level	Pattern	Image	Note
TS17: neural tube	Strong	Regionally restricted	3H/I , 3G	Strong expression was detected in the ventral neural tube.
TS17: stomach	Strong	Regionally restricted	3G , 3J/K	Strong expression was detected in the myenteric region of stomach.

Structure	Level	Pattern	Image	Note
TS19: glossopharyngeal ganglion	Present		4A , 4B
TS19: inferior vagus ganglion	Present		4A , 4B
TS19: superior vagus ganglion	Present		4A , 4B
TS19: trigeminal ganglion	Present		4C/D , 4A

Structure	Level	Pattern	Image	Note
TS19: enteric nervous system	Strong	Regionally restricted	4F/G , 4E	Strong expression was detected in the myenteric region of the stomach and small intestine.
TS19: genitourinary system	Strong	Regionally restricted	4F/G , 4E	Strong expression was detected in the excretory system.
TS19: nephric duct	Strong		4F/G , 4E
TS19: urogenital ridge	Strong		4F/G , 4E
TS19: spinal nerve plexus	Strong	Regionally restricted	4H/I , 4E	Strong expression was detected in the developing lumbo-sacral plexus ventral to the hindlimb bud.

Structure	Level	Pattern	Image	Note
TS19: genitourinary system	Strong	Regionally restricted	4M , 4J	Strong expression was detected in the excretory system.
TS19: nephric duct	Strong		4M , 4J
TS19: urogenital ridge	Strong		4M , 4J
TS19: neural tube	Strong		4J , 4K/L
TS19: sympathetic nerve trunk	Strong		4J , 4K/L

Structure	Level	Pattern	Image	Note
TS19: dorsal root ganglion	Present	Punctate	4N

Structure	Level	Pattern	Image	Note
TS19: lung	Present		4O/P

Structure	Level	Pattern	Image	Note
TS20: sympathetic nerve trunk	Strong		5H , 5I/J
TS20: spinal cord	Strong	Regionally restricted	5H	Strong expression was detected in the ventral neural tube.

Structure	Level	Pattern	Image	Note
TS20: 4th ventricle	Strong	Regionally restricted	5K/L	Expression was detected in the roof of the 4th ventricle.

Structure	Level	Pattern	Image	Note
TS20: trigeminal ganglion	Strong		5M

Structure	Level	Pattern	Image	Note
TS20: dorsal root ganglion	Strong		5N

Structure	Level	Pattern	Image	Note
TS21: dorsal root ganglion	Strong		6A
TS21: spinal cord	Strong	Regionally restricted	6A	Strong expression was detected in the ventral horn of the spinal cord.
TS21: cervical ganglion	Strong		6A , 6B/C
TS21: thyroid gland	Strong		6A , 6B/C
TS21: enteric nervous system	Strong	Regionally restricted	6B/C , 6A	Strong expression was detected in the myenteric region of the esophagus.

Structure	Level	Pattern	Image	Note
TS21: dorsal root ganglion	Strong		6D
TS21: spinal cord	Strong	Regionally restricted	6D	Strong expression was detected in the ventral horn of the spinal cord.
TS21: cervical ganglion	Strong		6D , 6E/F
TS21: thyroid gland	Strong		6D , 6E/F
TS21: enteric nervous system	Strong	Regionally restricted	6E/F , 6D	Strong expression was detected in the myenteric region of the esophagus.

Structure	Level	Pattern	Image	Note
TS21: urinary system	Present	Regionally restricted	6G/H	Expression was detected in the ureteric bud.

Structure	Level	Pattern	Image	Note
TS21: lumbosacral plexus	Strong		6N , 6M , 6L

Structure	Level	Pattern	Image	Note
TS21: dorsal root ganglion	Strong		6T
TS21: spinal cord	Strong	Regionally restricted	6T	Strong expression was detected in the ventral horn of the spinal cord.