Probe:	Ywhae cDNA
Probe preparation:	Antisense labelled with S35 RNA

Structure	Level	Pattern	Image	Note
TS13: gut	Present	Uniform	5a
TS13: neural tube	Present	Uniform	5a
TS13: paraxial mesenchyme	Present	Uniform	5a
TS13: surface ectoderm	Present	Uniform	5a

Structure	Level	Pattern	Image	Note
TS15: paraxial mesenchyme	Strong		5b
TS15: trunk mesenchyme	Strong	Regionally restricted	5b	Expression was strong in the lateral mesenchyme.
TS15: myotome	Weak		5b
TS15: nephric duct, mesonephric portion	Weak		5b
TS15: neural tube	Weak		5b
TS15: surface ectoderm	Weak		5b
TS15: mesonephros	Weak	Regionally restricted	5b	A low level of expression was noted in the early mesonephric glomeruli.

Structure	Level	Pattern	Image	Note
TS15: intermediate mesenchyme	Present		6a

Structure	Level	Pattern	Image	Note
TS18: metanephric mesenchyme	Strong		6b
TS18: ureteric bud	Absent		6b

Structure	Level	Pattern	Image	Note
TS21: mesenchyme of metanephros	Strong		6c

Structure	Level	Pattern	Image	Note
TS23: mesenchyme of metanephros	Strong		6d

Structure	Level	Pattern	Image	Note
TS19: neural tube	Present	Regionally restricted	7A	Expression was noticeably less in the ventral horn region than in the rest of the neural tube.

Structure	Level	Pattern	Image	Note
TS19: lung mesenchyme	Strong		7B
TS19: cardiac muscle tissue	Weak		7B
TS19: lung epithelium	Weak		7B

Structure	Level	Pattern	Image	Note
TS21: mandible mesenchyme	Strong		7C
TS21: tongue mesenchyme	Strong		7C
TS21: tooth	Present		7C

Structure	Level	Pattern	Image	Note
TS20: embryo mesenchyme	Strong		8a/b	Loose mesenchyme had the highest expression levels.
TS20: cerebral cortex	Present		8a/b
TS20: dorsal root ganglion	Present		8a/b
TS20: epithelium	Weak		8a/b

Structure	Level	Pattern	Image	Note
TS20: lung mesenchyme	Strong		8c/d	The interstitial mesenchyme had a high level of expression.
TS20: lung epithelium	Weak	Regionally restricted	8c/d	The epithelial linings of the segmental bronchioles had low expression levels.

Structure	Level	Pattern	Image	Note
TS20: rib pre-cartilage condensation	Present	Regionally restricted	8e/f	Expression was detected in the intercostal mesenchyme, but there was little mRNA in the differentiating bone.

Structure	Level	Pattern	Image	Note
TS20: early nephron	Weak		8g/h
TS20: primitive collecting duct	Weak		8g/h

Structure	Level	Pattern	Image	Note
TS20: gut mesenchyme	Strong		8i/j	Expression was more pronounced in the intermediate mesenchymal layer of the gut than in the inner and outer epithelial layers.
TS20: gut epithelium	Weak		8i/j

Structure	Level	Pattern	Image	Note
TS17: embryo mesenchyme	Strong
TS17: nervous system	Strong
TS17: epithelium	Weak
TS17: liver	Trace

Structure	Level	Pattern	Image	Note
TS23: brain	Strong
TS23: cerebral cortex	Strong
TS23: dorsal root ganglion	Strong
TS23: mesenchyme of metanephros	Strong
TS23: spinal cord	Strong
TS23: diencephalon roof plate	Strong			Expression was strong in the roof of the third ventricle.
TS23: bone	Weak
TS23: collecting duct	Weak
TS23: gut mesenchyme	Weak
TS23: lung mesenchyme	Weak
TS23: renal tubule	Weak	Regionally restricted		Expression was low in the majority of nephrogenic tubules.
TS23: epithelium	Trace
TS23: liver	Trace
TS23: tooth	Present