Probe:	probe A
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS19: footplate	Present	Regionally restricted	5A	Authors report strong and sharply defined expression in the extremities of both fore- and hindlimbs.
TS19: handplate	Present	Regionally restricted	5A	Authors report strong and sharply defined expression in the extremities of both fore- and hindlimbs.

Structure	Level	Pattern	Image	Note
TS20: foot	Present	Regionally restricted	5B	Authors report strong and sharply defined expression in the extremities of both fore- and hindlimbs.
TS20: hand	Present	Regionally restricted	5B	Authors report strong and sharply defined expression in the extremities of both fore- and hindlimbs.

Structure	Level	Pattern	Image	Note
TS20: hand mesenchyme	Present	Regionally restricted	5C	Expression restricted to the perichondrium.
TS20: forelimb digit 1	Absent		5C	Expression domain not extended to digit 1 anlage.
TS20: hand epithelium	Absent		5C	Ectodermal layer is negative for expression.

Structure	Level	Pattern	Image	Note
TS20: foot mesenchyme	Present	Regionally restricted	5D	Expression in most of posterior-distal mesenchymal cells.
TS20: hindlimb digit 1	Absent		5D	Expression domain not extended to digit 1 anlage.

Structure	Level	Pattern	Image	Note
TS22: forelimb digit 1	Present	Regionally restricted		In older handplates, expression detected up to area of prospective digit 1.
TS22: hand mesenchyme	Present	Regionally restricted		Expression domain restricted to perichondrium.