Probe:	Runx3 probe1
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS17: forelimb bud	Absent		1A 10.5 right	No expression in the region anterior of the limb bud, corresponding to the future shoulder girdle.
TS17: nasal process	Present		1A 10.5 right	Expressed in the developing nostrils.
TS17: eye	Present	Regionally restricted	1A 10.5 right	Expressed at a specific site anterior of the eye.

Structure	Level	Pattern	Image	Note
TS19: mandible primordium	Absent		1A 11.5 right
TS19: oral region mesenchyme	Absent		1A 11.5 right	No expression in the developing mandible and in condensations of other facial bones.

Structure	Level	Pattern	Image	Note
TS20: oral region	Absent		1A 12.5 right	No expression in the developing mandible and in condensations of other facial bones.
TS20: mandible primordium	Absent		1A 12.5 right

Structure	Level	Pattern	Image	Note
TS17: forelimb bud	Absent		1B 10.5 right	No expression in the region anterior of the limb bud, corresponding to the future shoulder girdle.

Structure	Level	Pattern	Image	Note
TS19: future arm mesenchyme	Absent		1B 11.5 right	No expression in the anlagen of the humerus and the shoulder girdle.
TS19: forelimb bud mesenchyme	Present	Regionally restricted	1B 11.5 right	Expressed in the condensing mesenchyme of the future ulna.

Structure	Level	Pattern	Image	Note
TS20: radius-ulna pre-cartilage condensation	Present		1B 12.5 right

Structure	Level	Pattern	Image	Note
TS21: metacarpus pre-cartilage condensation	Present	Regionally restricted	1B 13.5 right	Expressed in the proximal part of the metacarpals.
TS21: forelimb phalanx pre-cartilage condensation	Present	Regionally restricted	1B 13.5 right	Expressed in the proximal and distal phalanges.