Probe:	proalpha1(III)
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography
Assay notes:	Over all, the signal for Col3a1 was stronger than that for either Col1a1 or Col1a2 from E8.5 to E12.5.

Structure	Level	Pattern	Image	Note
TS13: yolk sac blood vessel	Present	Regionally restricted	4A	Expressed in the layer of mesodermally derived blood vessels.

Structure	Level	Pattern	Image	Note
TS28: myometrium	Strong		4A

Structure	Level	Pattern	Image	Note
TS13: head	Present		4B/C
TS13: mesoderm	Present	Regionally restricted	4B/C	Expressed in the visceral mesoderm.

Structure	Level	Pattern	Image	Note
TS17: 1st branchial arch mandibular component mesenchyme	Present		4D
TS17: dorsal aorta	Present		4D
TS17: forelimb bud mesenchyme	Present		4D
TS17: head mesenchyme	Present		4D
TS17: pericardium	Present		4D
TS17: visceral mesothelium	Present		4D

Structure	Level	Pattern	Image	Note
TS15: head mesenchyme	Present		4E/F
TS15: visceral mesothelium	Present		4E/F

Structure	Level	Pattern	Image	Note
TS20: dermatome	Present		5A
TS20: nasal mesenchyme	Present		5A
TS20: sclerotome	Present		5A
TS20: vertebral pre-cartilage condensation	Present		5A

Structure	Level	Pattern	Image	Note
TS20: meninges	Present		5B/C

Structure	Level	Pattern	Image	Note
TS20: endocardial cushion	Present		6C
TS20: pericardium	Present		6C

Structure	Level	Pattern	Image	Note
TS20: dermis	Present		6F	Expressed in the fibrous connective tissue.
TS20: mandibular process mesenchyme	Present		6F	Expressed in the fibrous connective tissue.

Structure	Level	Pattern	Image	Note
TS11: embryo ectoderm	Absent
TS11: embryo endoderm	Absent
TS11: embryo mesoderm	Absent