Probe:	Math6 probe
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS13: foregut diverticulum	Strong	Regionally restricted	3A	Expressed in the region of the foregut near the heart anlage.

Structure	Level	Pattern	Image	Note
TS13: foregut diverticulum	Strong	Regionally restricted	3B	Expressed in a paired tubular structure and its surrounding tissue residing dorsal to the heart anlage.

Structure	Level	Pattern	Image	Note
TS17: 1st branchial arch	Strong		3C
TS17: 2nd branchial arch	Strong		3C
TS17: 3rd branchial arch	Strong		3C
TS17: 4th branchial arch	Strong		3C
TS17: forebrain	Strong		3C
TS17: eye	Weak		3C
TS17: heart atrium	Weak		3C
TS17: limb bud	Weak		3C
TS17: midbrain	Weak		3C
TS17: primitive ventricle	Weak		3C
TS17: somite	Weak		3C
TS17: telencephalon	Weak		3C

Structure	Level	Pattern	Image	Note
TS17: neural tube	Present		3D

Structure	Level	Pattern	Image	Note
TS17: foregut	Present		3E
TS17: mesenchyme derived from somatopleure	Present		3E

Structure	Level	Pattern	Image	Note
TS17: limb mesenchyme	Present		3F

Structure	Level	Pattern	Image	Note
TS17: myotome	Present		3G

Structure	Level	Pattern	Image	Note
TS19: metencephalon	Present		3H	Stronger expression.
TS19: midbrain	Present		3H	Stronger expression.
TS19: telencephalon	Present		3H	Stronger expression.
TS19: heart atrium	Present		3H
TS19: heart ventricle	Present		3H
TS19: limb bud	Present		3H

Structure	Level	Pattern	Image	Note
TS20: liver	Weak		3I
TS20: forelimb interdigital region	Strong		3I
TS20: heart ventricle	Strong		3I
TS20: hindlimb interdigital region	Strong		3I
TS20: metencephalon	Present		3I
TS20: midbrain	Present		3I
TS20: telencephalon	Present		3I