Probe:	Prox1 probe7
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS19: tongue	Absent		1C	Expression not observed at E11.5.

Structure	Level	Pattern	Image	Note
TS20: tongue papillary placode	Present	Punctate	1D	Punctate pattern of expreession, like that of Shh.q

Structure	Level	Pattern	Image	Note
TS21: soft palate	Absent		4E	No expression in presumptive soft palatal region.
TS21: secondary palate	Present	Regionally restricted	4E	Expression in presumptive rugae in hard palatal region.

Structure	Level	Pattern	Image	Note
TS22: soft palate	Weak	Regionally restricted	4F	Expression obvious in soft palate; lower intensity of expression and spots of expression were smaller than for Shh.

Structure	Level	Pattern	Image	Note
TS23: soft palate	Weak	Regionally restricted	4G	Expression obvious in soft palate; lower intensity of expression and spots of expression were smaller than for Shh.

Structure	Level	Pattern	Image	Note
TS24: soft palate	Weak	Regionally restricted	4H	Expression obvious in soft palate; lower intensity of expression and spots of expression were smaller than for Shh.