TABLE 1.

All genes for which RNA antisense probes have been used for in situ hybridization.

Abbreviation	Full Name	Probe Seq	NCBI RefSeq
agrp	agouti related neuropeptide	68…649	XM_009303347.3
arxa	aristaless related homeobox a	start < 226…1157	NM_131384.1
bsx	brain-specific homeobox	38…773	NM_214727.1
dlx5a	distal-less homeobox 5a	13…507	NM_131306.2
fgf8a	fibroblast growth factor 8a	1…1461	AF034264.1
foxb1a	forkhead box B1a	685…1920	NM_131285.1
isl1	ISL LIM homeobox 1	start < 74…2328	XM_021475997.1
lef1	lymphoid enhancer-binding factor 1	11…450	AF164700.2
lhx5	LIM homeobox 5	start < 1185…2016	NM_131218.1
lhx6	LIM homeobox 6	918…1292	NM_001004015.2
lhx9	LIM homeobox 9	2466…2698	NM_001037243.2
nkx2.1	NK2 homeobox 1	156…765	NM_131776.1
nkx2.2a	NK2 homeobox 2a	33…498	NM_131422.3
nr5a2	nuclear receptor subfamily 5, group A, member 2	1582…3110	NM_131463.1
otpa	orthopedia homeobox a	540…1020	NM_001128703.1
pax6a	paired box 6a	700…2161	XM_009297889.3
pax7a	paired box 7a	332…2225	AF014368.1
penka	proenkephalin a	223…861	NM_200083.2
shha	sonic hedgehog signaling molecule a	79…1757	NM_131063.3
th	tyrosine hydroxylase	268…1092	NM_131149.1

Third column indicates the sequence range used for probe generation. Numbering refers to the reference sequence indicated in fourth column. References for published probes and primer sequences for probes which were cloned in this study can be found in Supplementary Table S1.