Probe:	M-twist cDNA1
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS11: primitive streak	Absent			Authors report no expression in the primitive streak region.

Structure	Level	Pattern	Image	Note
TS12: primitive streak	Absent		5A	No expression in committed mesodermal cells invaginating around the primitive streak.
TS12: somatopleure	Present		5A
TS12: somite	Present		5A

Structure	Level	Pattern	Image	Note
TS12: somatopleure	Present		5B
TS12: somite	Present		5B

Structure	Level	Pattern	Image	Note
TS13: head mesenchyme derived from neural crest	Present		5C
TS13: 1st branchial arch	Present	Regionally restricted	5C	Expression in the ventral part of the branchial arches.

Structure	Level	Pattern	Image	Note
TS15: 1st branchial arch mandibular component	Strong		6A
TS15: 1st branchial arch maxillary component	Strong		6A
TS15: limb	Strong		6A
TS15: head mesenchyme	Present	Regionally restricted	6A	Expression in the vicinity of the optical vesicles, diencephalon and mesencephalon.
TS15: mesenchyme derived from somatopleure	Present		6A
TS15: somite	Present		6A
TS15: heart	Absent		6A
TS15: mesenchyme derived from splanchnopleure	Absent		6A

Structure	Level	Pattern	Image	Note
TS15: head mesenchyme	Present	Regionally restricted	6B	Expression in the vicinity of the rhombencephalon and around the otic vesicles.

Structure	Level	Pattern	Image	Note
TS15: head mesenchyme	Present	Regionally restricted	6C	Expression in the vicinity of the forebrain, in contact with the nasal placodes, and mesencephalon.

Structure	Level	Pattern	Image	Note
TS15: mesenchyme derived from somatopleure	Present		6D
TS15: trunk sclerotome	Present		6D
TS15: trunk dermomyotome	Absent		6D

Structure	Level	Pattern	Image	Note
TS18: otocyst mesenchyme	Present		7A
TS18: embryo	Present	Regionally restricted	7A	Authors state that expression was progressively restricted to mesenchymal external structures of the cranial basis, the face, the lingua and the skin.

Structure	Level	Pattern	Image	Note
TS20: embryo	Present	Regionally restricted	7B	Authors state that expression was progressively restricted to mesenchymal external structures of the cranial basis, the face, the lingua and the skin.