Probe:	Hox11 probe1
Probe preparation:	Antisense labelled with radioactivity RNA

Structure	Level	Pattern	Image	Note
TS13: 1st branchial arch	Present		1C
TS13: 2nd branchial arch	Present		1C

Structure	Level	Pattern	Image	Note
TS13: migrating neural crest	Absent		1D
TS13: rhombomere	Absent		1D

Structure	Level	Pattern	Image	Note
TS14: 1st branchial arch	Present	Regionally restricted	2B	Expression was detected in the central portion of the arch.
TS14: 2nd branchial arch	Present	Regionally restricted	2B	Expression was detected in the central portion of the arch.
TS14: 3rd branchial arch	Present	Regionally restricted	2B	Expression was detected in the central portion of the arch.
TS14: branchial arch	Present	Regionally restricted	2B	Expression was detected in the central portion of the first arch and less-developed second through fourth arches.

Structure	Level	Pattern	Image	Note
TS17: 2nd branchial arch	Present	Regionally restricted	3B	Expression was detected in the center of branchial arches 2 and 3.
TS17: 3rd branchial arch	Present	Regionally restricted	3B	Expression was detected in the center of branchial arches 2 and 3.

Structure	Level	Pattern	Image	Note
TS17: 1st branchial arch mandibular component ectoderm	Present	Regionally restricted	3C	Expression was detected in the surface ectoderm.

Structure	Level	Pattern	Image	Note
TS17: acoustic ganglion	Present		3D
TS17: facial ganglion	Present		3D
TS17: trigeminal ganglion	Weak		3D

Structure	Level	Pattern	Image	Note
TS17: hindbrain	Present	Regionally restricted	3F	Expression was detected in the branchial motor nuclei.

Structure	Level	Pattern	Image	Note
TS21: facial ganglion	Present
TS21: trigeminal ganglion	Present
TS21: vestibulo-cochlear ganglion	Present

Structure	Level	Pattern	Image	Note
TS21: hindbrain	Present	Regionally restricted	4A	Expression was detected in the branchial motor nuclei.

Structure	Level	Pattern	Image	Note
TS21: hindbrain	Present	Regionally restricted	4B	Expression was detected in the branchial motor nuclei.

Structure	Level	Pattern	Image	Note
TS21: hindbrain	Present	Regionally restricted	4C	Expression was detected in the neural population of the branchial motor nuclei, and not in the supporting cells.