Probe:	Lbx1 cDNA1
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS17: hindbrain	Present		6A
TS17: myotome	Present	Regionally restricted	6A	Expression is in myogenic cells in the lateral regions of the differentiating somites at the level of the forelimb bud.
TS17: future spinal cord	Present	Regionally restricted	6A	Expression is dorsal.

Structure	Level	Pattern	Image	Note
TS24: hindbrain	Present	Regionally restricted	6B	Expression is dorsal.
TS24: spinal cord	Present	Regionally restricted	6B	Expression is dorsal.
TS24: cerebellum	Absent		6B

Structure	Level	Pattern	Image	Note
TS19: hindbrain mantle layer	Present		6C
TS19: myelencephalon	Present		6C
TS19: metencephalon	Present	Regionally restricted	6C	There is a sharp rostral boundary.
TS19: hindbrain ventricular layer	Present	Regionally restricted	6C	Absent in the germinating epithelium.

Structure	Level	Pattern	Image	Note
TS21: hindbrain	Present	Regionally restricted	6D	The rostral boundary of expression is slightly rostral to the pontine flexure.
TS21: cerebellum	Absent		6D

Structure	Level	Pattern	Image	Note
TS20: hindbrain alar plate	Present	Regionally restricted	6E
TS20: hindbrain mantle layer	Present	Regionally restricted	6E
TS20: hindbrain ventricular layer	Present	Regionally restricted	6E	Absent in the germinating epithelium.
TS20: hindbrain basal plate	Absent		6E

Structure	Level	Pattern	Image	Note
TS23: hindbrain	Present	Regionally restricted	6F	Expression is dorsal to the sulcus limitans.
TS23: hindbrain lateral wall	Present	Regionally restricted	6F	Expression is in the mantle layer of the alar plates.

Structure	Level	Pattern	Image	Note
TS13: embryo	Absent		7A
TS13: somite	Absent		7A

Structure	Level	Pattern	Image	Note
TS17: forelimb bud	Present	Single cells	7B	Expression is in dispersed cells.
TS17: hindlimb bud	Present	Single cells	7B	Expression is in dispersed cells.

Structure	Level	Pattern	Image	Note
TS19: hindlimb bud	Present	Regionally restricted	7C	Expression is in dorsal and ventral muscle masses.

Structure	Level	Pattern	Image	Note
TS21: forelimb musculature	Weak		7D

Structure	Level	Pattern	Image	Note
TS21: skeletal muscle	Weak	Regionally restricted	7E	Expression is in the pectoralis muscle, absent in dorsal or intercostal muscle.
TS21: tongue muscle	Weak		7E

Structure	Level	Pattern	Image	Note
TS28: skeletal muscle	Present	Diffuse	7F	Thigh muscle.
TS28: white fat	Absent		7F

Structure	Level	Pattern	Image	Note
TS23: skeletal muscle	Trace

Structure	Level	Pattern	Image	Note
TS24: skeletal muscle	Absent