Probe:	Bmp-7 cDNA4
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS15: forelimb bud	Present	Widespread	1A	Expressed in the entire forelimb field.
TS15: branchial arch	Present		1A
TS15: cephalic midbrain flexure	Present		1A
TS15: future forebrain	Present		1A
TS15: heart	Present		1A
TS15: nephric duct	Present		1A
TS15: otocyst	Present		1A

Structure	Level	Pattern	Image	Note
TS16: forelimb bud mesenchyme	Present	Non-Uniform	1B	Expression levels were higher in anterior than in posterior mesenchyme.
TS16: hindlimb bud	Present	Widespread	1B	Expressed in the entire hindlimb field.

Structure	Level	Pattern	Image	Note
TS17: forelimb bud apical ectodermal ridge	Present		1C
TS17: hindlimb bud apical ectodermal ridge	Present		1C
TS17: forelimb bud mesenchyme	Present	Regionally restricted	1C	Expression was found particularly in an anterior and a posterior expression domain underlying the apical ectodermal ridge, slightly more prominent anteriorly.
TS17: hindlimb bud mesenchyme	Present		1C	No distinction of an anterior and a posterior expression domain yet.

Structure	Level	Pattern	Image	Note
TS18: hindlimb bud apical ectodermal ridge	Weak		1D
TS18: hindlimb bud mesenchyme	Trace		1D	Very weak expression in the mesenchyme underlying the apical ectodermal ridge.

Structure	Level	Pattern	Image	Note
TS19: forelimb bud mesenchyme	Present	Regionally restricted	1E	Expressed in the distal mesenchyme and in regions of condensing cartilage, being more abundant in the posterior domains. An anterior expression domain was also observed at the base of the limb buds.
TS19: hindlimb bud mesenchyme	Present	Regionally restricted	1E	Expressed in the distal mesenchyme and in regions of condensing cartilage, being more abundant in the posterior domains. An anterior expression domain was also observed at the base of the limb buds.

Structure	Level	Pattern	Image	Note
TS20: forelimb mesenchyme	Strong	Regionally restricted	1F	Expressed strongly at the anterior base.
TS20: hindlimb mesenchyme	Strong	Regionally restricted	1F	Expressed strongly at the anterior base.
TS20: forelimb interdigital region mesenchyme	Strong		1F
TS20: hindlimb interdigital region mesenchyme	Strong		1F
TS20: forelimb pre-cartilage condensation	Present		1F
TS20: hindlimb pre-cartilage condensation	Present		1F