Reporter:	lacZ
	Direct Detection

Structure	Level	Pattern	Image	Note
TS19: forelimb bud mesenchyme	Present	Regionally restricted	1C	Expression was more anteriorly and proximally restricted.

Structure	Level	Pattern	Image	Note
TS19: hindlimb bud mesenchyme	Present	Regionally restricted	1C'	Expression was more anteriorly and proximally restricted.

Structure	Level	Pattern	Image	Note
TS20: hand pre-cartilage condensation	Present	Non-Uniform	1G	Variably expressed in the digit condensations, with the highest expression in digit 4.

Structure	Level	Pattern	Image	Note
TS20: foot pre-cartilage condensation	Present	Non-Uniform	1G'	Variably expressed in the digit condensations, with the highest expression in digit 4.

Structure	Level	Pattern	Image	Note
TS21: forelimb digit pre-cartilage condensation	Present	Regionally restricted	1K inset	Expression expanded to all digits and was enriched in the interphalangeal joints.

Structure	Level	Pattern	Image	Note
TS21: hindlimb digit pre-cartilage condensation	Present	Regionally restricted	1K' inset	Expression expanded to all digits and was enriched in the interphalangeal joints.

Structure	Level	Pattern	Image	Note
TS22: forelimb digit cartilage condensation	Present	Regionally restricted	1K	Expression expanded to all digits and was enriched in the interphalangeal joints.
TS22: forelimb interphalangeal joint	Present		1K

Structure	Level	Pattern	Image	Note
TS22: hindlimb digit cartilage condensation	Present	Regionally restricted	1K'	Expression expanded to all digits and was enriched in the interphalangeal joints.
TS22: hindlimb interphalangeal joint	Present		1K'