Probe:	BMP2 cDNA
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS15: heart	Present	Non-Uniform		Non-uniform distribution of expression principally round the heart primordia.
TS15: 1st branchial arch mandibular component	Weak			Little expression in forelimb bud, and maxillary and mandibular processes.
TS15: 1st branchial arch maxillary component	Weak			Little expression in forelimb bud, and maxillary and mandibular processes.
TS15: forelimb bud	Weak			Little expression in forelimb bud, and maxillary and mandibular processes.

Structure	Level	Pattern	Image	Note
TS17: dorsal aorta	Strong			Considerable expression in paired aortae.
TS17: limb bud	Present	Regionally restricted		Expression in apices of limb buds.
TS17: 1st branchial arch mandibular component mesenchyme	Present			Marginal increase in expression in mesenchyme of mandibular process.
TS17: head mesenchyme	Present	Regionally restricted		Increased expression in mesenchyme adjacent to junction between midbrain and hindbrain.

Structure	Level	Pattern	Image	Note
TS19: embryo	Present			Authors state changes seen at E10.5 are still present at E11.5.

Structure	Level	Pattern	Image	Note
TS21: tooth epithelium	Present	Regionally restricted	1A	Expression in epithelium of ventral surface of tongue.
TS21: oral region	Present	Regionally restricted	1A	Expression in floor of mouth.

Structure	Level	Pattern	Image	Note
TS21: tongue epithelium	Present	Regionally restricted	1B	No expression in epithelium of dorsum of tongue.
TS21: primary palate	Absent		1B

Structure	Level	Pattern	Image	Note
TS21: oral region mesenchyme	Present	Diffuse	1C	Diffuse expression throughout mesenchymal tissues of floor of oral cavity.
TS21: tongue mesenchyme	Weak		1C
TS21: Meckel's cartilage	Strong	Regionally restricted	1C	Strong bilateral foci of expression in region of Meckel's cartilages.
TS21: mesenchyme derived from neural crest	Present	Regionally restricted	1C	Expression in ectomesenchyme of cranial base.
TS21: chondrocranium pre-cartilage condensation	Absent		1C	No expression in parachordal cartilage.
TS21: central nervous system	Absent		1C	No expression in neural tube.
TS21: palatal shelf	Absent		1C	No expression in mesenchyme of palatal processes, which have not yet fused.

Structure	Level	Pattern	Image	Note
TS21: tongue epithelium	Present	Regionally restricted	1D	Authors report a sharp cut-off between strong expression in the epithelium of the ventral surface of tongue and no expression in the dorsum.

Structure	Level	Pattern	Image	Note
TS21: lower jaw tooth dental lamina	Present		2A	Expression in thickened dental lamina a earliest morphologically recognizable stage of mandibular tooth development.
TS21: tooth epithelium	Present	Regionally restricted	2A	Expression in enamel epithelium.

Structure	Level	Pattern	Image	Note
TS21: upper jaw tooth dental lamina	Weak		2B	Lesser extent of expression in dental lamina of maxillary tooth at slightly later stage of development.
TS21: upper jaw tooth mesenchyme	Present	Regionally restricted	2B	No expression in underlying ectomesenchymal condensation, which will form dental follicle and papilla. Strong expression in surrounding ectomesenchyme.

Structure	Level	Pattern	Image	Note
TS21: otic capsule	Absent		2C
TS21: ear mesenchyme	Present	Regionally restricted	2C	Marked expression in surrounding ectomesenchyme.
TS21: perioptic mesenchyme	Present		2C	Marked expression in periocular mesenchyme.
TS21: neural retina	Absent		2C