Reporter:	lacZ
	Direct Detection

Structure	Level	Pattern	Image	Note
TS15: mesonephros mesenchyme	Strong		5A
TS15: branchial arch	Present		5A
TS15: otocyst	Present		5A
TS15: somite	Present	Regionally restricted	5A	Expression is in the anterior somites.
TS15: trunk mesenchyme	Present	Regionally restricted	5A	Expression is in the flank mesenchyme just posterior to the emerging forelimb buds.
TS15: notochord	Weak		5A

Structure	Level	Pattern	Image	Note
TS17: mesonephros mesenchyme	Strong		5B
TS17: branchial arch	Present		5B
TS17: forelimb bud apical ectodermal ridge	Present		5B
TS17: hindlimb bud apical ectodermal ridge	Present		5B
TS17: otocyst	Present		5B
TS17: somite	Present	Regionally restricted	5B	Expression is in the anterior somites extending to the hindlimb level and is strongest in the epaxial domain.
TS17: trunk mesenchyme	Present	Regionally restricted	5B	Expression is in the flank mesenchyme just posterior to the emerging forelimb buds.
TS17: forelimb bud mesenchyme	Present	Regionally restricted	5B	Expression is in the centro-medial limb bud mesenchyme.
TS17: notochord	Present	Regionally restricted	5B	Expression is in the posterior region.

Structure	Level	Pattern	Image	Note
TS19: apical ectodermal ridge	Present		5C
TS19: limb	Present	Regionally restricted	5C	Expression is in proximal regions.
TS19: myotome	Present	Regionally restricted	5C	Expression is strongest in the epaxial domain, weak in a portion of the hypaxial myotome.
TS19: notochord	Present	Regionally restricted	5C	Expression is in the posterior region.

Structure	Level	Pattern	Image	Note
TS19: neural tube	Present	Regionally restricted	5E	Expression is ventral.
TS19: neural tube basal columns	Present		5E
TS19: neural tube floor plate	Present		5E
TS19: neural tube roof plate	Present		5E

Structure	Level	Pattern	Image	Note
TS19: 1st branchial groove epithelium	Present		5F
TS19: thyroid gland	Present		5F
TS19: branchial arch	Present	Regionally restricted	5F	Expression is in branchial arch-derived muscle precursors.
TS19: blood vessel	Present	Regionally restricted	5F	Expression is in cells of the vascular wall.
TS19: 2nd branchial arch ectoderm	Present	Regionally restricted	5F	Expression is in the ectoderm between arches 2 and 3.
TS19: 3rd branchial arch ectoderm	Present	Regionally restricted	5F	Expression is in the ectoderm between arches 2 and 3.

Structure	Level	Pattern	Image	Note
TS19: dorsal aorta	Present		5G
TS19: sympathetic ganglion	Present		5G

Structure	Level	Pattern	Image	Note
TS19: endolymphatic appendage	Present		5H
TS19: inner ear epithelium	Present		5H

Structure	Level	Pattern	Image	Note
TS19: notochord	Present	Regionally restricted	5I	Expression is in the posterior region.
TS19: surface ectoderm	Present		5I

Structure	Level	Pattern	Image	Note
TS19: limb mesenchyme	Present		8A
TS19: somite	Present		8A
TS19: rib pre-cartilage condensation	Absent		8A

Structure	Level	Pattern	Image	Note
TS20: hindlimb	Present		8B	Expression is in the centro-medial portion of the limb bud.

Structure	Level	Pattern	Image	Note
TS22: forelimb	Strong	Regionally restricted	8D	Expression is in the distal tendon elements.
TS22: forelimb digit skin	Strong		8D
TS22: hand	Strong		8D
TS22: forelimb digit	Strong	Regionally restricted	8D	Expression is in the joints.

Structure	Level	Pattern	Image	Note
TS22: forelimb digit 2	Very strong	Regionally restricted	8E	Expression is in the ventral tendons, less strong in the dorsal tendon.
TS22: forelimb digit 3	Very strong	Regionally restricted	8E	Expression is in the ventral tendons, less strong in the dorsal tendon.
TS22: forelimb digit 4	Very strong	Regionally restricted	8E	Expression is in the ventral tendons, less strong in the dorsal tendon.

Structure	Level	Pattern	Image	Note
TS22: forelimb digit 3	Present	Regionally restricted	8E inset	Expression is in the joints.

Structure	Level	Pattern	Image	Note
TS22: forelimb digit	Present	Regionally restricted	8F	Expression is in the ventral and dorsal tendons and developing musculature.
TS22: forelimb digit mesenchyme	Present
TS22: forelimb digit skin	Present

Structure	Level	Pattern	Image	Note
TS22: forearm	Present	Regionally restricted	8G	Expression is in some but not all of the tendon rudiments.

Structure	Level	Pattern	Image	Note
TS22: upper arm	Present	Regionally restricted	8H	Expression is in muscle, absent in tendons.

Structure	Level	Pattern	Image	Note
TS19: apical ectodermal ridge	Present
TS19: cervical sinus	Present
TS19: endocardial cushion	Present
TS19: endolymphatic appendage	Present
TS19: inner ear	Present
TS19: metanephric mesenchyme	Present
TS19: myotome	Present
TS19: neural retinal epithelium	Present
TS19: neural tube basal columns	Present
TS19: neural tube floor plate	Present
TS19: neural tube roof plate	Present
TS19: surface ectoderm	Present
TS19: sympathetic ganglion	Present
TS19: thyroid gland	Present
TS19: head	Present	Regionally restricted		Expression is in muscle precursors.
TS19: limb	Present	Regionally restricted		Expression is in tendons and muscle precursors.
TS19: trunk mesenchyme	Present	Regionally restricted		Expression is in flank mesenchyme just posterior to forelimb buds.
TS19: blood vessel	Present	Regionally restricted		Expression is in the vascular wall.
TS19: heart	Present	Regionally restricted		Expression is in the truncus arteriosus cushion mesenchyme.
TS19: intestine epithelium	Present	Regionally restricted
TS19: notochord	Present	Regionally restricted		Expression is in the posterior region.