Probe:	Hox 1.3 probe
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS9: embryo	Absent

Structure	Level	Pattern	Image	Note
TS11: embryo	Absent

Structure	Level	Pattern	Image	Note
TS13: embryo ectoderm	Present	Regionally restricted	2_Hox 1.3	Expression in posterior ectoderm.
TS13: trunk unsegmented mesenchyme	Present		2_Hox 1.3	Expression in presomitic mesoderm.

Structure	Level	Pattern	Image	Note
TS13: trunk unsegmented mesenchyme	Present		3_Hox 1.3	Expression in mesoderm is more caudal with respect to ectodermal expression.

Structure	Level	Pattern	Image	Note
TS19: vertebral cartilage condensation	Present	Regionally restricted	4_Hox 1.3	Expression in the prevertebrae, extending anteriorly. Posterior expression boundaries are not clearly defined.
TS19: sclerotome condensation	Weak	Regionally restricted	4_Hox 1.3	Authors report lower levels in the vertebra centrum, centered around the notochord.
TS19: rib pre-cartilage condensation	Strong		4_Hox 1.3	Authors report maximum expression in ribs.
TS19: neural tube	Present		4_Hox 1.3

Structure	Level	Pattern	Image	Note
TS20: vertebral cartilage condensation	Present	Regionally restricted	5_Hox 1.3	Low levels of expression beginning at the third cervical prevertebra, increasing as the first thoracic prevertebra is approached.
TS20: C3 vertebral cartilage condensation	Weak		5_Hox 1.3
TS20: intestine	Present		5_Hox 1.3
TS20: lung	Present		5_Hox 1.3
TS20: metanephros	Present		5_Hox 1.3
TS20: stomach	Present		5_Hox 1.3

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