Probe:	Hoxb5 cDNA2
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS15: foregut	Present	Regionally restricted	1A b5	Expression is distal, in a restircted area on the lateral aspect of the developing pharynx at the level of the fourth branchial arch. The proximal boundary is at the esophageal foregut.
TS15: midgut	Present	Regionally restricted	1A b5	Expression is proximal and extends to where the liver will develop.

Structure	Level	Pattern	Image	Note
TS17: lung mesenchyme	Present	Regionally restricted	2_E10.5 b5	Expression is in the distal mesenchyme.
TS17: lung epithelium	Absent		2_E10.5 b5
TS17: main bronchus epithelium	Absent		2_E10.5 b5
TS17: main bronchus mesenchyme	Absent		2_E10.5 b5
TS17: trachea epithelium	Absent		2_E10.5 b5
TS17: trachea mesenchyme	Absent		2_E10.5 b5

Structure	Level	Pattern	Image	Note
TS19: lung mesenchyme	Present	Regionally restricted	2_E11.5 b5	Expression is in the distal mesenchyme.
TS19: lung epithelium	Absent		2_E11.5 b5
TS19: main bronchus epithelium	Absent		2_E11.5 b5
TS19: main bronchus mesenchyme	Absent		2_E11.5 b5
TS19: trachea epithelium	Absent		2_E11.5 b5
TS19: trachea mesenchyme	Absent		2_E11.5 b5

Structure	Level	Pattern	Image	Note
TS20: lung mesenchyme	Present	Regionally restricted	2_E12.5 b5	Expression is in the distal mesenchyme.
TS20: main bronchus epithelium	Absent		2_E12.5 b5

Structure	Level	Pattern	Image	Note
TS16: lung	Present		4A
TS16: pharynx	Present	Regionally restricted	4A	Expression is in the lateral part in the region of the circumpharyngeal cleft.