Probe:	CXCR4 cDNA
Probe preparation:	Antisense labelled with P33 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS11: embryo mesoderm	Present		2B
TS11: yolk sac mesoderm	Present		2B
TS11: parietal endoderm	Present	Regionally restricted	2B , 2D
TS11: chorion ectoderm	Absent		2B
TS11: embryo ectoderm	Absent		2B

Structure	Level	Pattern	Image	Note
TS13: foregut diverticulum	Present	Regionally restricted	3A	Expression is in the anterior region.
TS13: neural tube	Present	Regionally restricted	3A	Expression is in the anterior region.
TS13: hindgut diverticulum endoderm	Present		3A
TS13: somatopleure	Present		3A
TS13: splanchnopleure	Present		3A
TS13: trunk unsegmented mesenchyme	Present		3A
TS13: embryo ectoderm	Present	Regionally restricted	3A	Expression is in ectoderm overlying the somatopleure.

Structure	Level	Pattern	Image	Note
TS17: aortico-pulmonary spiral septum	Present		4A
TS17: stomach	Present		4A
TS17: Rathke's pouch	Present	Regionally restricted	4A	Expression is at the caudal side of the involution.
TS17: foregut	Present	Regionally restricted	4A	Expression is in a subset of foregut derivatives.
TS17: hindbrain	Present	Regionally restricted	4A	Expression is in the rhombic lip of the roof.
TS17: diencephalon floor plate	Present	Regionally restricted	4A	Expression is in the outpocketing of the floor as it expands to fuse with the roof.
TS17: brain	Present	Regionally restricted	4A	Expression is in the developing hypothalamus.
TS17: arterial system	Present	Regionally restricted	4A	Expression is striped in the aorta and along the intersegmental arteries.
TS17: dorsal aorta	Present	Regionally restricted	4A	Expression is striped in the aorta and along the intersegmental arteries.
TS17: liver	Absent		4A
TS17: extraembryonic component	Absent		4A	Expression was not detected in the yolk sac.
TS17: frontal process ectoderm	Present		4A

Structure	Level	Pattern	Image	Note
TS17: future spinal cord	Present	Regionally restricted	5A	Expression is in the ventral mantle layer.
TS17: dorsal root ganglion	Present		5A

Structure	Level	Pattern	Image	Note
TS19: metencephalon	Present	Regionally restricted	5E , 5C	Expression is in the pons and ventral rhombic lip.
TS19: myelencephalon	Present		5E	Expression in medulla oblongata.
TS19: midbrain	Present	Regionally restricted	5E	Expression is in the midbrain aspect of the midbrain/hindbrain border.
TS19: 4th ventricle	Present	Regionally restricted	5C	Expression is along the wall with a gap in a region that expresses Sdf1.
TS19: cardiovascular system	Present	Regionally restricted	5C	Expression is in various vascular endothelia including the pia matter.
TS19: Rathke's pouch	Present		5E

Structure	Level	Pattern	Image	Note
TS19: thyroid gland	Present		6E

Structure	Level	Pattern	Image	Note
TS20: 4th ventricle	Present		4C
TS20: diencephalon floor plate	Present		4C
TS20: spinal cord	Strong	Regionally restricted	4C	Expression is in the ventral mantle layer.
TS20: nervous system	Weak	Regionally restricted	4C	Expression is in the alar plates.
TS20: dorsal root ganglion	Strong		4C
TS20: hypothalamus	Present		4C
TS20: thalamus	Present		4C

Structure	Level	Pattern	Image	Note
TS20: sympathetic nervous system	Present	Regionally restricted	6A	Expression is in the dorsal and thoracic sympathetic ganglia.
TS20: spinal nerve	Present		6A
TS20: cystic duct	Present		6A
TS20: left lung epithelium	Present		6A
TS20: right lung epithelium	Present		6A
TS20: skin	Present		6A
TS20: extraembryonic vascular system	Present	Regionally restricted	6A	Expressed in vitelline/umbilical vessel epithelium.
TS20: cardiovascular system	Present	Regionally restricted	6A	Expression is in some embryonic vessels.
TS20: frontal process mesenchyme	Present		6A

Structure	Level	Pattern	Image	Note
TS20: heart ventricle	Present	Regionally restricted	6C	Expression is in the ventricle wall cappillary.
TS20: outflow tract	Present	Regionally restricted	6C	Expression is at the base of the outflow tract.
TS20: right atrium valve	Present		6C

Structure	Level	Pattern	Image	Note
TS22: trunk	Present	Regionally restricted	6G	Expression is in the distal facial ectoderm.
TS22: lower jaw epithelium	Present		6G
TS22: oral region	Present	Regionally restricted	6G	Expression is along the caudal edge of the dental almina of tooth primordia.

Structure	Level	Pattern	Image	Note
TS22: 4th ventricle	Present	Regionally restricted	4E	Expression is in the neural epithelium lining.
TS22: hypothalamus	Present		4E
TS22: olfactory lobe	Present		4E
TS22: thalamus	Present		4E
TS22: aortico-pulmonary spiral septum	Present		4E
TS22: skin	Present	Regionally restricted	4E	Expression is in the facial skin.
TS22: lateral ventricle	Present	Regionally restricted	4E	Expression is in the vascular pia matter.
TS22: stomach	Present	Regionally restricted	4E
TS22: cardiovascular system	Present	Regionally restricted	4E	Expression is in vascular beds including aortic and interstitial vessels.

Structure	Level	Pattern	Image	Note
TS22: 4th ventricle	Present	Regionally restricted	5G	Expression is tightly confined to the neuroepithelial lining.
TS22: hindbrain	Present	Regionally restricted	5G	Expression is in the external granular layer of the ventral rhombic lip.