Probe:	Sox10 probe2
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS15: dorsal root ganglion	Present		1A
TS15: facio-acoustic preganglion complex	Present		1A
TS15: glossopharyngeal preganglion	Present		1A
TS15: somite	Present		1A
TS15: trigeminal preganglion	Present		1A
TS15: vagus preganglion	Present		1A
TS15: spinal component of peripheral nervous system	Present	Regionally restricted	1A	Expression is is the spinal nerves.
TS15: head mesenchyme	Present	Regionally restricted	1A	Expression is in the mesenchyme around the optic evagination of the forebrain and in the upper facial region.

Structure	Level	Pattern	Image	Note
TS15: facio-acoustic preganglion complex	Present		1B	There is an absence of the separation of the trigeminal and facioacoustic ganglia in the mutant embryo.
TS15: trigeminal preganglion	Present		1B	There is an absence of the separation of the trigeminal and facioacoustic ganglia in the mutant embryo.
TS15: 1st branchial arch	Present	Regionally restricted	1B	There are two streams of expressing cells extending from the hindbrain to the first and second branchial arches.
TS15: 2nd branchial arch	Present	Regionally restricted	1B	There are two streams of expressing cells extending from the hindbrain to the first and second branchial arches.
TS15: future hindbrain	Present	Regionally restricted	1B	There are two streams of expressing cells extending from the hindbrain to the first and second branchial arches.
TS15: spinal component of peripheral nervous system	Present	Regionally restricted	1B	Expression is is the spinal nerves.
TS15: dorsal root ganglion	Present		1B
TS15: head mesenchyme	Present	Regionally restricted	1B	Expression is in the cranial mesenchyme, particularly in the mesenchyme ventral to the rostral part of the open cephalic neural folds and in the maxillary region.
TS15: somite	Present	Regionally restricted	1B	Expression in somites does not extends as far caudally as in wild-type embryos.

Structure	Level	Pattern	Image	Note
TS16: trigeminal ganglion	Present		1C
TS16: head mesenchyme	Present	Regionally restricted	1C	Expression is in the mesenchyme around the optic evagination of the forebrain and in the upper facial region.

Structure	Level	Pattern	Image	Note
TS16: branchial arch	Present	Regionally restricted	1D	There is extended distribution of expressing cells from the neural folds to the branchial arch in this mutant.
TS16: future brain	Present	Regionally restricted	1D	There is extended distribution of expressing cells from the neural folds to the branchial arch in this mutant.
TS16: 1st branchial arch	Present	Regionally restricted	1D	There is persistent expression in the postmigratory cells in this mutant.

Structure	Level	Pattern	Image	Note
TS16: branchial arch	Present	Regionally restricted	1E	There is extended distribution of expressing cells from the neural folds to the branchial arch in this mutant.
TS16: future brain	Present	Regionally restricted	1E	There is extended distribution of expressing cells from the neural folds to the branchial arch in this mutant.
TS16: 2nd branchial arch	Present	Regionally restricted	1E	There is persistent expression in the postmigratory cells in this mutant.

Structure	Level	Pattern	Image	Note
TS15: trunk	Present	Regionally restricted	1F	Segmental expression.

Structure	Level	Pattern	Image	Note
TS15: trunk	Present	Regionally restricted	1G	Diffuse expression in the upper trunk.
TS15: trunk paraxial mesenchyme	Present	Regionally restricted	1G	Expression is in the dorsal aspect of the paraxial mesoderm of the lower trunk.
TS15: somite	Present	Regionally restricted	1G	Expression is dorsal.

Structure	Level	Pattern	Image	Note
TS15: dorsal root ganglion	Present		1H
TS15: spinal component of peripheral nervous system	Present	Regionally restricted	1H	Expression is is the spinal nerves.

Structure	Level	Pattern	Image	Note
TS15: trunk paraxial mesenchyme	Present	Regionally restricted	1I	Dispersed expression.