Probe:	Hdac2 cDNA1
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS16: branchial arch	Strong		5G
TS16: forelimb bud	Strong		5G
TS16: future midbrain	Strong		5G
TS16: hindlimb bud	Strong		5G
TS16: telencephalon	Strong		5G
TS16: future hindbrain	Strong	Regionally restricted	5G	Expression is in the rhombic fossa and is weak in the myelencephalon.
TS16: oral region	Strong	Regionally restricted	5G	Expression is in the mouth.
TS16: head mesenchyme	Present		5G
TS16: otocyst	Present		5G
TS16: somite	Present		5G
TS16: future spinal cord	Weak		5G

Structure	Level	Pattern	Image	Note
TS16: branchial arch	Strong		5H
TS16: forelimb bud	Strong		5H
TS16: future midbrain	Strong		5H
TS16: hindlimb bud	Strong		5H
TS16: telencephalon	Strong		5H
TS16: oral region	Strong	Regionally restricted	5H	Expression is in the mouth.
TS16: future hindbrain	Strong	Regionally restricted	5H	Expression is in the rhombic fossa and is weak in the myelencephalon.
TS16: head mesenchyme	Present		5H
TS16: otocyst	Present		5H
TS16: somite	Present		5H
TS16: future spinal cord	Weak	Regionally restricted	5H

Structure	Level	Pattern	Image	Note
TS19: forebrain	Strong		5I
TS19: forelimb bud	Strong		5I
TS19: genital tubercle	Strong		5I
TS19: head mesenchyme	Strong		5I
TS19: hindbrain	Strong		5I
TS19: hindlimb bud	Strong		5I
TS19: mandibular process	Strong		5I
TS19: maxillary process	Strong		5I
TS19: midbrain	Strong		5I
TS19: myelencephalon	Strong		5I
TS19: oral region	Strong	Regionally restricted	5I	Expression is in the mouth.
TS19: head	Strong	Regionally restricted	5I	Expression is around the olfactory placodes.
TS19: integumental system	Strong	Regionally restricted	5I	Expression is in the area of the future vibrissae.
TS19: future spinal cord	Weak	Regionally restricted	5I	Expression is as two faint stripes running from the caudal rhombic lips through the entire length of the myelencephalon and spinal cord.
TS19: dorsal root ganglion	Moderate		5I
TS19: liver	Moderate		5I
TS19: otocyst	Moderate		5I
TS19: somite	Moderate		5I

Structure	Level	Pattern	Image	Note
TS19: forebrain	Strong		5J
TS19: forelimb bud	Strong		5J
TS19: head mesenchyme	Strong		5J
TS19: hindbrain	Strong		5J
TS19: hindlimb bud	Strong		5J
TS19: midbrain	Strong		5J
TS19: myelencephalon	Strong		5J
TS19: dorsal root ganglion	Moderate
TS19: somite	Moderate
TS19: future spinal cord	Weak	Regionally restricted	5J	Expression is as two faint stripes running from the caudal rhombic lips through the entire length of the myelencephalon and spinal cord.

Structure	Level	Pattern	Image	Note
TS21: forebrain	Strong		5K
TS21: midbrain	Strong		5K
TS21: tooth	Strong		5K
TS21: vibrissa	Strong		5K
TS21: oral region	Strong	Regionally restricted	5K	Expression is in the maxillary and mandibular processes.
TS21: forelimb mesenchyme	Strong	Regionally restricted	5K	Expression is around the forming skeletal elements.
TS21: hindlimb mesenchyme	Strong	Regionally restricted	5K	Expression is around the forming skeletal elements.
TS21: dorsal root ganglion	Present		5K
TS21: eyelid	Present		5K
TS21: head mesenchyme	Present		5K
TS21: somite	Present		5K
TS21: inner ear	Present	Regionally restricted	5K	Expression is in otic vesicles.

Structure	Level	Pattern	Image	Note
TS21: forebrain	Strong		5L
TS21: forelimb	Strong		5L
TS21: hindlimb	Strong		5L
TS21: midbrain	Strong		5L
TS21: dorsal root ganglion	Present		5L
TS21: head mesenchyme	Present		5L
TS21: somite	Present		5L
TS21: vertebral cartilage condensation	Present		5L

Structure	Level	Pattern	Image	Note
TS19: neural tube mantle layer	Present	Regionally restricted	5Y

Structure	Level	Pattern	Image	Note
TS21: cerebral cortex subventricular zone	Present		6A
TS21: cerebral cortex ventricular layer	Present		6A
TS21: cortical plate	Present		6A

Structure	Level	Pattern	Image	Note
TS21: cerebral cortex subventricular zone	Present		6E
TS21: cerebral cortex ventricular layer	Present		6E
TS21: cortical plate	Present		6E

Structure	Level	Pattern	Image	Note
TS21: dorsal root ganglion	Present		6N
TS21: rib cartilage condensation	Present		6N

Structure	Level	Pattern	Image	Note
TS21: dorsal root ganglion	Present		6P
TS21: vertebral cartilage condensation	Present		6P

Structure	Level	Pattern	Image	Note
TS21: lung	Strong		6S
TS21: liver	Weak	Regionally restricted	6S	Expression is in the capsule and the subcapsular region.
TS21: cardiac muscle tissue	Absent		6S

Structure	Level	Pattern	Image	Note
TS21: outflow tract	Present