Probe:	Ntm 1a probe
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS20: central nervous system	Present	Widespread	1D	Highly expressed throughout developing central nervous system, including telencephalic vesicles, diencephalon, mesencephalon, metencephalon, myelencephalon and spinal cord.
TS20: trigeminal ganglion	Present		1D	Expression within trigeminal (V) nerve pathway.
TS20: facial ganglion	Weak		1D	Expression in facio-acoustic ganglion (VII/VIII) complex.
TS20: vestibulo-cochlear ganglion	Weak		1D	Expression in facio-acoustic ganglion (VII/VIII) complex.
TS20: inferior vagus ganglion	Weak		1D	Expression in nodose (X) ganglion.
TS20: mandibular process	Present		1D	Expression only in mandibular region.
TS20: nose	Weak	Regionally restricted	1D	ssion in nostrils.

Structure	Level	Pattern	Image	Note
TS20: trigeminal ganglion	Present		1D'	Expression within trigeminal (V) nerve pathway.
TS20: facial ganglion	Weak		1D'	Expression in facio-acoustic ganglion (VII/VIII) complex.
TS20: vestibulo-cochlear ganglion	Weak		1D'	Expression in facio-acoustic ganglion (VII/VIII) complex.
TS20: inferior vagus ganglion	Weak		1D'	Expression in nodose (X) ganglion.
TS20: nose	Weak	Regionally restricted	1D'	Expression in nostrils.

Structure	Level	Pattern	Image	Note
TS20: embryo	Ambiguous		1D''

Structure	Level	Pattern	Image	Note
TS20: spinal cord	Present	Regionally restricted	1K	Strong expression throughout lateral sides of spinal cord.
TS20: spinal cord roof plate	Present		1K	Expression specifically marked roof plate region of spinal cord.
TS20: dorsal root ganglion	Present	Widespread	1K	Expression thoughout dorsal root ganglia.
TS20: lumbar dorsal root ganglion	Strong		1K	Strong expression in thoracic and lumbar dorsal root ganglia.
TS20: thoracic dorsal root ganglion	Strong		1K	Strong expression in thoracic and lumbar dorsal root ganglia.
TS20: brachial plexus	Present		1K	Expression in presumptive brachial and lumbosacral plexuses or in adjacent developing skeleton.
TS20: lumbosacral plexus	Present		1K	Expression in presumptive brachial and lumbosacral plexuses or in adjacent developing skeleton.

Structure	Level	Pattern	Image	Note
TS21: central nervous system	Present	Widespread	2D	Highly expressed throughout developing central nervous system, including telencephalic vesicles, diencephalon, mesencephalon, metencephalon, myelencephalon and spinal cord.
TS21: limb interdigital region mesenchyme	Weak		2D
TS21: forelimb	Present	Regionally restricted	2D	Expression in narrow area of central part of forelimb.
TS21: hindlimb	Present	Regionally restricted	2D	Expression in both anterior and posterior regions of central part of hindlimb.

Structure	Level	Pattern	Image	Note
TS21: lens	Weak	Regionally restricted	2D'	Weak expression in peripheral area of lens.
TS21: vibrissa follicle	Weak	Regionally restricted	2D'	Expression around developing whisker follicles.

Structure	Level	Pattern	Image	Note
TS21: forelimb	Weak	Regionally restricted	2D''	Expression in narrow area of central part of forelimb.
TS21: hindlimb	Weak	Regionally restricted	2D''	Expression in both anterior and posterior regions of central part of hindlimb

Structure	Level	Pattern	Image	Note
TS21: spinal cord roof plate	Present		2K	Expression specifically marked roof plate region of spinal cord.
TS21: dorsal root ganglion	Present	Widespread	2K	Expression thoughout dorsal root ganglia.
TS21: brachial plexus	Weak		2K	Expression in presumptive brachial and lumbosacral plexuses or in adjacent developing skeleton.
TS21: lumbosacral plexus	Weak		2K	Expression in presumptive brachial and lumbosacral plexuses or in adjacent developing skeleton.

Structure	Level	Pattern	Image	Note
TS21: olfactory lobe	Present
TS21: spinal cord	Present	Regionally restricted		Expression throughout lateral sides of spinal cord.
TS21: eye	Weak	Regionally restricted		Expression in tissues around eyes.
TS21: ear	Weak