Probe:	Sox10 cDNA6
Probe preparation:	Antisense RNA

Structure	Level	Pattern	Image	Note
TS16: cranial ganglion	Present		4A
TS16: dorsal root ganglion	Present		4A
TS16: foregut mesenchyme	Present		4A
TS16: migrating neural crest	Present	Regionally restricted	4A	Expression was detected in the postbranchial region.

Structure	Level	Pattern	Image	Note
TS16: cranial ganglion	Present		4B
TS16: dorsal root ganglion	Present		4B
TS16: migrating neural crest	Present	Regionally restricted	4B	Expression was detected in the postbranchial region as in wild type.
TS16: foregut mesenchyme	Absent		4B

Structure	Level	Pattern	Image	Note
TS17: migrating neural crest	Present	Regionally restricted	4C	Migrating enteric nervous system progenitors had reached the midgut loop (halfway between the caudal end of the pancreas and the caecum).

Structure	Level	Pattern	Image	Note
TS17: migrating neural crest	Present	Regionally restricted	4D	The frong of migrating enteric neural crest cells was located more anteriorly compared to wild type, just beyond the pancreatic anlage. The total number of stained cells was reduced in the mutant.