Probe:	Crabp1 probe
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Cell Type	Level	Pattern	Image	Note
TS15: 2nd branchial arch	migratory neural crest cell	Present	Regionally restricted	6I	Expression was detected in anterior second branchial arch.
TS15: face	migratory cranial neural crest cell	Present	Regionally restricted	6I	Expression was detected in migratory and early-post migratory neural crest cells at all craniofacial levels.
TS15: migrating neural crest		Present	Regionally restricted	6I	Expression was detected in streams of cells connecting the post-otic hindbrain to the arches.

Structure	Cell Type	Level	Pattern	Image	Note
TS15: 2nd branchial arch	migratory neural crest cell	Present	Regionally restricted	6J	Expression was detected in anterior second branchial arch.
TS15: face	migratory cranial neural crest cell	Present	Regionally restricted	6J	Expression was detected in migratory and early-post migratory neural crest cells at all craniofacial levels.
TS15: migrating neural crest		Present	Regionally restricted	6J	Expression was detected in streams of cells connecting the post-otic hindbrain to the arches.

Structure	Cell Type	Level	Pattern	Image	Note
TS15: 2nd branchial arch	migratory neural crest cell	Present	Regionally restricted	6K	No difference in expression was observed between Cyp26b1-/- and wild type embryos.
TS15: face	migratory neural crest cell	Present	Regionally restricted	6K	No difference in expression was observed between Cyp26b1-/- and wild type embryos.
TS15: migrating neural crest		Present	Regionally restricted	6K	The streams of cells connecting the post-otic hindbrain to the arches were highly disorganized in Cyp26b1-/- compared with wild type.

Structure	Cell Type	Level	Pattern	Image	Note
TS15: 2nd branchial arch	migratory neural crest cell	Present	Regionally restricted	6L	No difference in expression was observed between Cyp26b1-/- and wild type embryos.
TS15: face	migratory neural crest cell	Present	Regionally restricted	6L	No difference in expression was observed between Cyp26b1-/- and wild type embryos.
TS15: migrating neural crest		Present	Regionally restricted	6L	The streams of cells connecting the post-otic hindbrain to the arches were highly disorganized in Cyp26b1-/- compared with wild type.

Structure	Cell Type	Level	Pattern	Image	Note
TS13: neural crest	migratory neural crest cell	Present	Regionally restricted		Expression was detected in migratory streams from r2 and r4.

Structure	Cell Type	Level	Pattern	Image	Note
TS13: neural crest	migratory neural crest cell	Present	Regionally restricted		No difference in migratory stream expression from r2 and r4 was observed between Cyp26b1-/- and wild type embryos.