Probe:	Rarg probe4
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS17: tail	Present	Regionally restricted	2F	Expression was detected at a low level in all tissues of the tail region, with a caudal border located just cranially to the most recently formed somite.
TS17: tail surface ectoderm	Present		2F

Structure	Level	Pattern	Image	Note
TS17: tail	Present		3_RAR gamma a	Central and dorsal cells show higher levels than the ventral/peripheral ones.

Structure	Level	Pattern	Image	Note
TS17: tail	Present	Non-Uniform	3_RAR gamma b	Central and dorsal cells show higher levels than the ventral/peripheral ones.
TS17: future spinal cord	Present	Regionally restricted	3_RAR gamma b	High level of expression was detected in the neural plate of the open neuropore.
TS17: tail mesenchyme	Present	Non-Uniform	3_RAR gamma b	Within the mesoderm, the ventral midline area above the ventral ectodermal ridge was more strongly labelled than the lateral and paraxial regions.
TS17: tail surface ectoderm	Weak	Non-Uniform	3_RAR gamma b	Surface ectoderm was labeled at a low level except for the ventral ectodermal ridge, in which transcripts are undetectable.

Structure	Level	Pattern	Image	Note
TS17: neural tube	Weak		3_RAR gamma c
TS17: tail mesenchyme	Present	Non-Uniform	3_RAR gamma c	Within the mesoderm, the ventral midline area above the ventral ectodermal ridge was more strongly labelled than the lateral and paraxial regions.
TS17: tail paraxial mesenchyme	Present		3_RAR gamma c

Structure	Level	Pattern	Image	Note
TS17: neural tube	Ambiguous		3_RAR gamma d
TS17: tail paraxial mesenchyme	Absent		3_RAR gamma d

Structure	Level	Pattern	Image	Note
TS17: neural tube	Ambiguous		3_RAR gamma e

Structure	Level	Pattern	Image	Note
TS17: hindlimb bud mesenchyme	Strong