Probe:	Col11a1 probe1
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS19: notochord	Strong		1A	Significant expression in notochord.

Structure	Level	Pattern	Image	Note
TS19: sclerotome	Strong		1C	Significant expression in sclerotome.

Structure	Level	Pattern	Image	Note
TS20: notochord	Strong		1E	Prominent expression in notochord.
TS20: sclerotome	Strong	Regionally restricted	1E	Prominent expression in sclerotome-derived condentsations along vertebral axis.

Structure	Level	Pattern	Image	Note
TS20: nasal mesenchyme	Present	Regionally restricted	2A	Expression in mesenchymal condensation forming nasal capsule.
TS20: nasal septum	Present		2A

Structure	Level	Pattern	Image	Note
TS21: limb	Strong		2B	High level of expression detectable at 13.0 dpc.

Structure	Level	Pattern	Image	Note
TS23: Meckel's cartilage	Strong		3A	Prominent expression in all cartilaginous tissues; such as chondrocranium, primordial cartilage of vertebral bodies, sternum, ribs, tracheal rings, hyoid cartilage, Meckel's cartilage, and limb cartilage.
TS23: chondrocranium	Strong		3A	Prominent expression in all cartilaginous tissues; such as chondrocranium, primordial cartilage of vertebral bodies, sternum, ribs, tracheal rings, hyoid cartilage, Meckel's cartilage, and limb cartilage.
TS23: hyoid	Strong		3A	Prominent expression in all cartilaginous tissues; such as chondrocranium, primordial cartilage of vertebral bodies, sternum, ribs, tracheal rings, hyoid cartilage, Meckel's cartilage, and limb cartilage.
TS23: limb cartilage condensation	Strong		3A	Prominent expression in all cartilaginous tissues; such as chondrocranium, primordial cartilage of vertebral bodies, sternum, ribs, tracheal rings, hyoid cartilage, Meckel's cartilage, and limb cartilage.
TS23: rib	Strong		3A	Prominent expression in all cartilaginous tissues; such as chondrocranium, primordial cartilage of vertebral bodies, sternum, ribs, tracheal rings, hyoid cartilage, Meckel's cartilage, and limb cartilage.
TS23: sternum	Strong		3A	Prominent expression in all cartilaginous tissues; such as chondrocranium, primordial cartilage of vertebral bodies, sternum, ribs, tracheal rings, hyoid cartilage, Meckel's cartilage, and limb cartilage.
TS23: trachea cartilaginous ring	Strong		3A	Prominent expression in all cartilaginous tissues; such as chondrocranium, primordial cartilage of vertebral bodies, sternum, ribs, tracheal rings, hyoid cartilage, Meckel's cartilage, and limb cartilage.
TS23: vertebral cartilage condensation	Strong		3A	Prominent expression in all cartilaginous tissues; such as chondrocranium, primordial cartilage of vertebral bodies, sternum, ribs, tracheal rings, hyoid cartilage, Meckel's cartilage, and limb cartilage.
TS23: humerus	Strong		3A
TS23: radius	Strong		3A
TS23: ulna	Strong		3A

Structure	Level	Pattern	Image	Note
TS23: radius	Present	Regionally restricted	4B
TS23: long bone epiphyseal plate proliferative zone	Strong	Regionally restricted	4B	Strong expression in resting and proliferating chondrocytes.
TS23: long bone epiphyseal plate resting zone	Strong	Regionally restricted	4B	Strong expression in resting and proliferating chondrocytes.
TS23: perichondrium	Present	Regionally restricted	4B	Expression in perichondrium around hypertrophic zone.
TS23: long bone epiphyseal plate hypertrophic zone	Absent		4B	No expression in cells of hypertrophic zone.
TS23: periosteum	Present	Regionally restricted	4B	Expression in immature periosteum around primary ossification center.
TS23: long bone epiphyseal plate ossification zone	Absent		4B	Expression absent from primary ossification center.

Structure	Level	Pattern	Image	Note
TS23: chondrocranium	Strong	Regionally restricted	5A	High level of expression in mesenchymal cell layers differentiating into osteoblasts.

Structure	Level	Pattern	Image	Note
TS23: cornea stroma	Present		6A	Expression in mesothelial layer of cornea.
TS23: perioptic mesenchyme	Present	Regionally restricted	6A	Expression in condensation of perioptic mesenchyme in sclera.

Structure	Level	Pattern	Image	Note
TS23: forelimb tendon primordium	Present		6C