Probe:	Hox2.7 exon IV (common) probe2
Probe preparation:	DNA

Structure	Level	Pattern	Image	Note
TS20: central nervous system	Present	Regionally restricted	6a/b	Clear dorsal restriction and anterior limit of expression.
TS20: hindbrain	Weak	Regionally restricted	6a/b	Faint domain of expression extending more anteriorly in the hindbrain.
TS20: vertebral pre-cartilage condensation	Present	Regionally restricted	6a/b	Expression in prevertebra with anterior boundary at C1
TS20: inferior glossopharyngeal ganglion	Present		6a/b
TS20: inferior vagus ganglion	Present		6a/b

Structure	Level	Pattern	Image	Note
TS20: vertebral pre-cartilage condensation	Present	Regionally restricted	6c/d	Expression in prevertebra with anterior boundary at C1.
TS20: thyroid gland	Present	Regionally restricted	6c/d	Expression in mesenchyme of thyroid gland and thymus.

Structure	Level	Pattern	Image	Note
TS15: future hindbrain	Present	Regionally restricted	6e	Sharp anterior limit of expression in hindbrain which maps to the boundary between rhombomeres 4 and 5.

Structure	Level	Pattern	Image	Note
TS15: 3rd branchial arch ectoderm	Present		6f	Expression in surface ectoderm and mesenchymal tissues of 3rd and posterior branchial arches
TS15: 3rd branchial arch mesenchyme	Present		6f	Expression in surface ectoderm and mesenchymal tissues of 3rd and posterior branchial arches

Structure	Level	Pattern	Image	Note
TS20: dorsal root ganglion	Present		6g

Structure	Level	Pattern	Image	Note
TS20: lung	Present		6h
TS20: mesonephric tubule	Present		6h
TS20: metanephros	Present		6h
TS20: pancreas	Present		6h
TS20: stomach	Present		6h

Structure	Level	Pattern	Image	Note
TS20: central nervous system	Present	Regionally restricted	7A	Anterior boundary of expression in the hindbrain.
TS20: hindbrain	Present	Regionally restricted	7A	Additional domain of expression extending more anteriorly, up to the boundary of rhombomeres 2 and 3.