Probe:	Col23a1 cDNA
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS17: forelimb bud	Present	Regionally restricted	1E Col23a1	This gene exhibits category 3 expression: staining is observed in the posterior-proximal limb bud.

Structure	Level	Pattern	Image	Note
TS17: forelimb bud	Present	Regionally restricted	2C Col23a1 - E10.5	This gene exhibits category 3 expression: staining is observed in the posterior-proximal limb bud.

Structure	Level	Pattern	Image	Note
TS19: forelimb bud	Present	Regionally restricted	2C Col23a1 - E11.5	This gene exhibits category 3 expression: staining is observed in the posterior-proximal limb bud.

Structure	Level	Pattern	Image	Note
TS17: forelimb bud	Present	Regionally restricted	S1A Col23a1 - E10.5	This gene exhibits category 3 expression: staining is observed in the posterior-proximal limb bud.

Structure	Level	Pattern	Image	Note
TS19: forelimb bud	Present	Regionally restricted	S1A Col23a1 - E11.5	This gene exhibits category 3 expression: staining is observed in the posterior-proximal limb bud.

Structure	Level	Pattern	Image	Note
TS17: forelimb bud	Moderate	Regionally restricted	Col23a1_a46_E10.5a_RF_JL	Staining is observed in the posterior-proximal limb bud.

Structure	Level	Pattern	Image	Note
TS17: forelimb bud	Moderate	Regionally restricted	Col23a1_a46_E10.5b_RF_JL	Staining is observed in the posterior-proximal limb bud.

Structure	Level	Pattern	Image	Note
TS17: forelimb bud	Moderate	Regionally restricted	Col23a1_a46_E10.5b_RF-dp_JL	Staining is observed in the posterior-proximal limb bud.

Structure	Level	Pattern	Image	Note
TS19: forelimb bud	Present	Regionally restricted	Col23a1_a46_E11.5a_RF_JL	Domains of staining are similar to those seen at E10.5.

Structure	Level	Pattern	Image	Note
TS19: forelimb bud	Present	Regionally restricted	Col23a1_a46_E11.5b_RF_JL	Domains of staining are similar to those seen at E10.5.

Structure	Level	Pattern	Image	Note
TS17: somite	Strong		Col23a1_a46_E10.5a_JL
TS17: branchial arch	Strong		Col23a1_a46_E10.5a_JL

Structure	Level	Pattern	Image	Note
TS17: somite	Strong		Col23a1_a46_E10.5b_JL
TS17: branchial arch	Strong		Col23a1_a46_E10.5b_JL

Structure	Level	Pattern	Image	Note
TS19: embryo	Present	Regionally restricted	Col23a1_a46_E11.5a_JL	Staining is similar to that observed at E10.5. At that time it was seen in the somites and branchial arch.

Structure	Level	Pattern	Image	Note
TS19: embryo	Present	Regionally restricted	Col23a1_a46_E11.5b_JL	Staining is similar to that observed at E10.5. At that time it was seen in the somites and branchial arch.