Probe:	dhand probe16
Probe preparation:	Antisense RNA

Structure	Level	Pattern	Image	Note
TS19: forelimb bud mesenchyme	Strong	Non-Uniform	1A	Expression is weak in the anterior and strong in the posterior limb mesenchyme.
TS19: future arm mesenchyme	Strong	Regionally restricted	1A	Expression is in the region closely juxtaposing the aggregating chondrocytes of the zeugopod and is weak or absent within the site of chondrogenesis.
TS19: handplate mesenchyme	Strong	Regionally restricted	1A	Expression is in the region closely juxtaposing the aggregating chondrocytes of the autopod and is weak or absent within the site of chondrogenesis.

Structure	Cell Type	Level	Pattern	Image	Note
TS20: hand mesenchyme		Present	Regionally restricted	1C , 1E	Expression is in the region surrounding the forming digit anlagen.
TS20: hand pre-cartilage condensation	chondrocyte	Absent		1E , 1C	Expression is absent in chondrocytes.

Structure	Level	Pattern	Image	Note
TS25: forelimb cartilage condensation	Absent		6C

Structure	Level	Pattern	Image	Note
TS25: forelimb cartilage condensation	Absent		S4E

Structure	Cell Type	Level	Pattern	Image	Note
TS24: forearm mesenchyme	chondrocyte	Present	Regionally restricted	S5B	Expression is in the prehypertrophic and hypertrophic chondrocytes and is not or only weakly detected in the resting and proliferating chondrocytes.
TS24: forearm mesenchyme	hypertrophic chondrocyte	Present	Regionally restricted	S5B	Expression is in the prehypertrophic and hypertrophic chondrocytes and is not or only weakly detected in the resting and proliferating chondrocytes.
TS24: forearm bone		Present		S5B