Probe:	Lmx1b cDNA8
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS15: head mesenchyme	Present	Graded	3B , 3A	Expressed in a gradient declining toward the optic vesicle.
TS15: head surface ectoderm	Present		3B , 3A

Structure	Level	Pattern	Image	Note
TS17: head mesenchyme	Present	Regionally restricted	3D , 3C	A zone of negative mesenchyme was established just above the eye.
TS17: head surface ectoderm	Present		3D , 3C

Structure	Level	Pattern	Image	Note
TS20: head mesenchyme	Present	Regionally restricted	3K , 3E , 3H	Expressed in the early migrating mesenchyme. A zone of negative mesenchyme was established just above the eye.

Structure	Level	Pattern	Image	Note
TS21: head mesenchyme	Present	Regionally restricted	3P	Expression was was absent or very low in the entire antero-posterior extent of supra-orbital mesenchyme.

Structure	Level	Pattern	Image	Note
TS22: head mesenchyme	Weak	Regionally restricted	3R	Rapidly down-regulated in both the area and the intensity of expression.

Structure	Level	Pattern	Image	Note
TS24: chondrocranium	Absent