Probe:

Hoxa9 probe6

Structure	Level	Pattern	Image	Note
TS20: vertebral cartilage condensation	Present	Regionally restricted	3A Hoxa-9	Expression was detected starting with prevertebra 13 (T6), but with higher signal intensities in the thoracic prevertebra and rib anlagen.
TS20: T6 vertebral cartilage condensation	Present		3A Hoxa-9
TS20: rib pre-cartilage condensation	Present		3A Hoxa-9
TS20: thoracic vertebral cartilage condensation	Present		3A Hoxa-9
TS20: spinal cord	Present	Regionally restricted	3A Hoxa-9	The transcript boundaries in the spinal cord and ganglia were at the level of prevertebra 5.
TS20: spinal ganglion	Present	Regionally restricted	3A Hoxa-9	The transcript boundaries in the spinal cord and ganglia were at the level of prevertebra 5.

Structure	Level	Pattern	Image	Note
TS20: vertebral cartilage condensation	Present	Regionally restricted	3B Hoxa-9	As in wild type, expression was detected starting with prevertebra 13 (T6), but with higher signal intensities in the thoracic prevertebra and rib anlagen in the mutant.
TS20: T6 vertebral cartilage condensation	Present		3B Hoxa-9
TS20: rib pre-cartilage condensation	Present		3B Hoxa-9
TS20: thoracic vertebral cartilage condensation	Present		3B Hoxa-9
TS20: spinal cord	Present	Regionally restricted	3B Hoxa-9	As in wild type, the transcript boundaries in the spinal cord and ganglia were at the level of prevertebra 5 in the mutant.
TS20: spinal ganglion	Present	Regionally restricted	3B Hoxa-9	As in wild type, the transcript boundaries in the spinal cord and ganglia were at the level of prevertebra 5 in the mutant.

Structure	Level	Pattern	Image	Note
TS20: T6 vertebral cartilage condensation	Present	Regionally restricted		No alteration was noted in transcript domains in the heterozygous embryo compared to wild type.
TS20: rib pre-cartilage condensation	Present	Regionally restricted		No alteration was noted in transcript domains in the heterozygous embryo compared to wild type.
TS20: spinal cord	Present	Regionally restricted		No alteration was noted in transcript domains in the heterozygous embryo compared to wild type.
TS20: spinal ganglion	Present	Regionally restricted		No alteration was noted in transcript domains in the heterozygous embryo compared to wild type.
TS20: thoracic vertebral cartilage condensation	Present	Regionally restricted		No alteration was noted in transcript domains in the heterozygous embryo compared to wild type.
TS20: vertebral cartilage condensation	Present	Regionally restricted		No alteration was noted in transcript domains in the heterozygous embryo compared to wild type.