Probe:	Tbx2 cDNA2
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS4: blastocyst	Absent

Structure	Level	Pattern	Image	Note
TS11: conceptus	Absent

Structure	Level	Pattern	Image	Note
TS15: 1st branchial arch mesenchyme	Present	Regionally restricted	3C	Expression is present in the rostral part of the 1st arch in the mesenchyme directly underlying the olfactory placodes, between the telencephalon and the surface epithelium.

Structure	Level	Pattern	Image	Note
TS15: trunk	Present	Regionally restricted		Expression is present in the body wall.
TS15: pharynx epithelium	Absent

Structure	Level	Pattern	Image	Note
TS20: rib pre-cartilage condensation	Present		4H

Structure	Level	Pattern	Image	Note
TS20: inner ear epithelium	Present
TS20: trigeminal ganglion	Present
TS20: vestibulo-cochlear ganglion	Absent
TS20: dorsal root ganglion	Weak			Expression is present along the length of the spinal column.
TS20: neurohypophysis infundibulum	Present
TS20: diencephalon lateral wall	Present	Regionally restricted		Expression is present in the floor.
TS20: lung mesenchyme	Present
TS20: lung epithelium	Absent
TS20: gut mesenchyme	Present	Regionally restricted		Expression is present in the smooth muscle.
TS20: stomach mesenchyme	Present	Regionally restricted		Expression is present in the smooth muscle.
TS20: mesonephros	Present
TS20: metanephros	Present			Expression is present in the metanephric tubules.
TS20: genital tubercle	Present			Expression is present in the genital papilla.
TS20: gonad	Present	Regionally restricted		Expression is present in the genital ridge.
TS20: body wall	Present
TS20: heart atrium	Absent
TS20: heart ventricle	Absent
TS20: forelimb	Present
TS20: hindlimb	Present
TS20: myotome	Present
TS20: hindbrain	Present
TS20: neural retinal epithelium	Present
TS20: rib pre-cartilage condensation	Present
TS20: tail mesenchyme	Absent
TS20: tongue mesenchyme	Absent