Probe:	Ets-1 cDNA1
Probe preparation:	Antisense labelled with S35 RNA

Structure	Level	Pattern	Image	Note
TS21: small intestine mesenchyme	Present		2A/C
TS21: small intestine epithelium	Absent		2A/C

Structure	Level	Pattern	Image	Note
TS21: large intestine mesenchyme	Present		2B
TS21: small intestine mesenchyme	Present		2B
TS21: large intestine epithelium	Absent		2B
TS21: small intestine epithelium	Absent		2B

Structure	Level	Pattern	Image	Note
TS23: large intestine	Absent		2D

Structure	Level	Pattern	Image	Note
TS15: otocyst mesenchyme	Present		2E

Structure	Level	Pattern	Image	Note
TS15: trunk mesenchyme	Present	Regionally restricted	2F	Expression was detected in mesenchymal cells surrounding the spinal canal.

Structure	Level	Pattern	Image	Note
TS21: head mesenchyme	Present	Regionally restricted	2G	Expression was detected in mesenchymal cells immediately adjacent to brain.
TS21: optic nerve	Present		2G
TS21: brain	Absent		2G
TS21: retina	Absent		2G

Structure	Level	Pattern	Image	Note
TS22: spinal cord gray matter	Strong	Regionally restricted	2H/I	Expression was detected in gray matter adjacent to the central canal.
TS22: spinal cord white matter	Absent		2H/I

Structure	Level	Pattern	Image	Note
TS22: cerebral cortex	Present		2J
TS22: brain	Present	Regionally restricted	2J	Expression was detected in cells of the brain surrounding the fourth ventricle.
TS22: white matter	Absent		2J

Structure	Level	Pattern	Image	Note
TS21: vertebral pre-cartilage condensation	Present	Regionally restricted	2K/L	Expression was detected in developing bone and not detected in the cartilage of developing vetebra.

Structure	Level	Pattern	Image	Note
TS21: foot	Present	Regionally restricted	2M/N	Expression was detected in forming bones of the foot. Cartilage is negative.

Structure	Level	Pattern	Image	Note
TS13: future midbrain neural crest	Strong	Regionally restricted		High expression was detected in the mesencephalic neural crest cells around the neural pore.