Probe:	Acvr2b cDNA1
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS28: decidua	Absent

Structure	Level	Pattern	Image	Note
TS8: embryo	Strong			At 6.0 to 8.5 dpc.
TS8: extraembryonic component	Strong			At 6.0 to 8.5 dpc.

Structure	Level	Pattern	Image	Note
TS13: embryo	Strong			At 6.0 to 8.5 dpc.
TS13: extraembryonic component	Strong			At 6.0 to 8.5 dpc.

Structure	Level	Pattern	Image	Note
TS20: central nervous system	Present	Regionally restricted	10E	Predominantly present in the central nervous system, including the brain, ganglia and spinal cord.
TS20: embryo	Present	Regionally restricted	10E	Predominantly present in the central nervous system, including the brain, ganglia and spinal cord.
TS20: brain	Present	Regionally restricted	10E	Expressed in the mantle layer; also in the ependymal layer.
TS20: spinal cord	Present	Regionally restricted	10E	Expressed in the mantle layer; also in the ependymal layer.
TS20: diencephalon	Present		10E
TS20: telencephalon	Present		10E
TS20: metanephros	Present	Regionally restricted	10E	Peripheral structures in the metanephros.
TS20: eye	Present	Regionally restricted	10E	Epidermis of the developing eye.
TS20: stomach	Present	Regionally restricted	10E	Epithelium and mesenchymal layers of the stomach.

Structure	Level	Pattern	Image	Note
TS20: central nervous system	Present	Regionally restricted	10F	Predominantly present in the central nervous system, including the brain, ganglia and spinal cord.
TS20: embryo	Present	Regionally restricted	10F	Predominantly present in the central nervous system, including the brain, ganglia and spinal cord.
TS20: brain	Present	Regionally restricted	10F	Expressed in the mantle layer; also in the ependymal layer.
TS20: spinal cord	Present	Regionally restricted	10F	Expressed in the mantle layer; also in the ependymal layer.
TS20: cochlear duct epithelium	Present		10F
TS20: diencephalon	Present		10F
TS20: posterior semicircular canal	Present		10F
TS20: superior semicircular canal	Present		10F
TS20: telencephalon	Present		10F

Structure	Level	Pattern	Image	Note
TS20: brain	Present	Regionally restricted	10G	Expressed in the mantle layer; also in the ependymal layer.
TS20: spinal cord	Present	Regionally restricted	10G	Expressed in the mantle layer; also in the ependymal layer.
TS20: metanephros	Present	Regionally restricted	10G	Peripheral structures in the metanephros.

Structure	Level	Pattern	Image	Note
TS21: olfactory lobe	Present	Regionally restricted		Expression is restricted to the epithelium.
TS21: cochlear duct epithelium	Present
TS21: vibrissa	Absent
TS21: eye	Present	Regionally restricted		Epidermis of the developing eye.
TS21: tooth	Absent
TS21: tongue mesenchyme	Present			Developing muscles of the tongue.
TS21: genital tubercle	Absent
TS21: lung	Ambiguous			Either positive or negative.
TS21: stomach	Ambiguous			Either positive or negative.
TS21: esophagus	Absent
TS21: liver	Absent
TS21: rectum	Absent
TS21: trachea	Absent
TS21: metanephros	Present	Regionally restricted		Peripheral structures in the metanephros.
TS21: brain	Present			Expressed in the mantle layer; also in the ependymal layer.
TS21: spinal cord	Present			Expressed in the mantle layer; also in the ependymal layer.
TS21: intestine	Present
TS21: vertebral axis musculature	Absent			There is no expression in the body wall.
TS21: blood vessel	Absent
TS21: heart	Absent
TS21: axial skeleton	Absent			There is no expression in the intervertebral discs.
TS21: gonad	Ambiguous			Either positive or negative; may be due to sex differences.
TS21: pleuro-peritoneal canal	Absent			There is no expression in the pleuroperitoneal membrane.
TS21: trunk mesenchyme	Present	Regionally restricted		There is expression in the fascia. In addition expression is in mesenchymal condensations of the flank and back of the embryo, in particular in the limb and shoulder regions.
TS21: limb	Present
TS21: shoulder	Present

Structure	Level	Pattern	Image	Note
TS21: neural retinal epithelium	Present		10H