Reporter:	lacZ
	Direct Detection

Structure	Level	Pattern	Image	Note
TS15: rhombomere 4	Present	Single cells		Expression first detected in several individual cells in dorsal rhombomere 4.

Structure	Level	Pattern	Image	Note
TS16: rhombomere 4	Present	Single cells	2a	Expression in several individual cells in dorsal rhombomere 4.

Structure	Level	Pattern	Image	Note
TS16: rhombomere 4	Present	Single cells	2b	Expression in several individual cells in dorsal rhombomere 4.

Structure	Level	Pattern	Image	Note
TS16: rhombomere 6	Present	Single cells		Expression in several cells in the dorsal-lateral margin of rhombomere 6 close to the otic vesicle.

Structure	Level	Pattern	Image	Note
TS17: embryo	Present	Regionally restricted	2c	Authors report a restricted pattern of expression.

Structure	Level	Pattern	Image	Note
TS17: rhombomere 4	Present	Regionally restricted	2d	Expression in a increased number of cells compared to E9.75.
TS17: rhombomere 6	Present	Regionally restricted	2d	Expression in a increased number of cells compared to E9.75. Expressing cells dispersed across the ventral rhombomere without a prominent organization.

Structure	Level	Pattern	Image	Note
TS17: rhombomere 4	Present	Regionally restricted	2e	Roughly organized cell stripes of expression, crossing ventral rhombomere 4 towards the floor plate.
TS17: rhombomere 6	Present	Regionally restricted	2e	Roughly organized cell stripes of expression, crossing ventral rhombomere 4 towards the floor plate.

Structure	Level	Pattern	Image	Note
TS17: rhombomere 4	Present	Regionally restricted	2g	Roughly organized cell stripes of expression, crossing ventral rhombomere 4 towards the floor plate.
TS17: rhombomere 6	Present	Regionally restricted	2g	Expressing cells dispersed across the ventral rhombomere without a prominent organization.

Structure	Level	Pattern	Image	Note
TS17: hindbrain	Present	Regionally restricted	2h' , 2h	Expression in cells distributed underneath the neuroepithelium.

Structure	Level	Pattern	Image	Note
TS17: hindbrain	Present	Regionally restricted	2i , 2i'	Expression in cells distributed underneath the neuroepithelium.

Structure	Level	Pattern	Image	Note
TS19: hindbrain	Present	Regionally restricted	2j	Expression in a mass of cells in ventral hindbrain on side of the floor plate, at the end of a stripe of expression beside the ventral midline.

Structure	Level	Pattern	Image	Note
TS19: hindbrain	Present	Regionally restricted	2k	Expression in two masses of cells in ventral hindbrain on each side of floor plate, at the ends of stripes of expression beside the ventral midline.

Structure	Level	Pattern	Image	Note
TS19: hindbrain	Present	Regionally restricted	2k'	Expression in an accumulation of cells in rhombomere 4. Expression in cell stripes.

Structure	Level	Pattern	Image	Note
TS19: hindbrain	Present	Regionally restricted	2l	Expression in cell masses in rhombomere 4. Authors report expression in cell stripes have almost disappeared; only a few individual cells could be detected. Expression in rhombomere 6 no longer visible.

Structure	Level	Pattern	Image	Note
TS19: hindbrain	Present	Regionally restricted	2m	Expression in cell masses in rhombomere 4. Authors report expression in cell stripes have almost disappeared; only a few individual cells could be detected. Expression in rhombomere 6 no longer visible.

Structure	Level	Pattern	Image	Note
TS27: pons	Present	Regionally restricted	3a	Expression in the caudal pons. Rostral parts of bands of expression located in subcoeruleus nucleus (SnC), lateral to caudal pontine reticular nucleus (PnC) and medial to trigeminal motor nucleus (Mo5).

Structure	Level	Pattern	Image	Note
TS27: pons	Present	Regionally restricted	3b	Expression in the caudal pons. Rostral parts of bands of expression located in subcoeruleus nucleus (SnC), lateral to caudal pontine reticular nucleus (PnC) and medial to trigeminal motor nucleus (Mo5).

Structure	Level	Pattern	Image	Note
TS27: pons	Present	Regionally restricted	3c	Expression in 2 longitudinal bands extending dorsal to caudal half of superior olivary nucleus and rostral end of facial nucleus. Rostral parts in subcoeruleus nucleus, lateral to caudal pontine reticular nucleus and medial to trigeminal motor nucleus.

Structure	Level	Pattern	Image	Note
TS27: pons	Present	Regionally restricted	3d	Expression in 2 longitudinal bands extending dorsal to caudal half of superior olivary nucleus and rostral end of facial nucleus. Caudal parts of bands in intermediate reticular formation, lateral to pontine reticular nucleus and medial to facial nerve.

Structure	Level	Pattern	Image	Note
TS27: pons	Present	Regionally restricted	3e	Expression ventral to the locus coeruleus.

Structure	Level	Pattern	Image	Note
TS28: pons	Present	Regionally restricted	4a	Expression in the caudal pons similar to that seen in P0 mice.

Structure	Level	Pattern	Image	Note
TS28: pons	Present	Regionally restricted	4b	Expression in the caudal pons similar to that seen in P0 mice.

Structure	Level	Pattern	Image	Note
TS28: pons	Present	Regionally restricted	4c	Expression in the caudal pons similar to that seen in P0 mice.

Structure	Level	Pattern	Image	Note
TS28: pons	Present	Regionally restricted	4d	Expression in the caudal pons similar to that seen in P0 mice.

Structure	Level	Pattern	Image	Note
TS19: hindbrain	Present	Regionally restricted	5b	Expression in cells located lateral to facial motor neurons.

Structure	Level	Pattern	Image	Note
TS19: hindbrain	Present	Regionally restricted	5b'	Expression in ventral interneurons in ventrolateral area.