Probe:	Msx1 probe21
Probe preparation:	labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS11: embryo mesoderm	Present	Regionally restricted	8A	Expression in posterior lateral plate mesoderm. Lateral bands of expression begin just rostral to node, and meet caudally at base of allantois.
TS11: chorion	Present		8A

Structure	Level	Pattern	Image	Note
TS15: embryo	Present	Regionally restricted	8C	Broad expression in the dorsal midline.
TS15: forelimb bud	Present		8C

Structure	Level	Pattern	Image	Note
TS19: embryo	Present	Regionally restricted	8E	Broad expression in the dorsal midline.
TS19: head mesenchyme	Present	Regionally restricted	8E	Expression in craniofacial primordia .
TS19: auditory hillocks	Present		8E
TS19: forelimb bud	Present		8E
TS19: hindlimb bud	Present		8E

Structure	Level	Pattern	Image	Note
TS19: latero-nasal process	Present	Regionally restricted	8G	Broad expression in distal regions of lateral and medial nasal processes.
TS19: medial-nasal process	Present	Regionally restricted	8G	Broad expression in distal regions of lateral and medial nasal processes.
TS19: mandible primordium	Present		8G
TS19: maxilla primordium	Present		8G

Structure	Level	Pattern	Image	Note
TS19: forelimb bud mesenchyme	Present	Regionally restricted	8I	Expression throughout distal mesenchyme (progress zone).

Structure	Level	Pattern	Image	Note
TS21: hindlimb interdigital region	Present		8K