Table 1.

Qualitative assessment of gene expression differences in song nuclei of juvenile (20 day old) vs. adult male zebra finches.

GENE	HVC	shelf	X	Str.	LMAN	Nido.	RA	Arco.
A. HVC higher in adults
ADAM23	↑	=			↑	=	↑	=
COL12A1*	↑	=					↑	=
COL21A1*	↑	↓					↑	↓
CXCR7	↑	=					↑	↑
MPZL1	↑	↑			↑	=	↑	↑
PVALB	↑	↑			↑	↑	↑	↑
SLC8A1	↑	=			=	=	↓	=
B. HVC higher in juveniles
CACNG3	↓	↓					↑	=
CNTN4	↓	↓	↓	↓	↓	↓
FLRT2	↓	↓	=	↓	↓	↓
KCNT2	↓	↓	↑	↓
LGMN*	↓	=
LRRTM2*	↓	↓			↓	↓	↓	↓
NRP1*	↓	=					↓	=
SAP30L*	↓	=			=	↓	↑	=
C. Shelf higher in, juveniles
MAP1B*	=	↓			↑	↓	↓	↓
NDRG4	=	↓			↑	=
RCAN2	=	↓			=	↓	=	↓
SEMA6A	=	↓	=	=	↓	↓	=	↑
SV2B	=	↓	↑	↓	=	↓
D. Marker across ages
CADPS2	=	=	=	=
CDH6	=	=
KCNA1	=	=	=	↓	↑	↓
NETO1	=	=
NROB1	=	=
PPM1E	=	=	↓	=
SCUBE1	=	=
SEMA3E	=	=	=	=	=	=
SYT4	=	=

↑ indicates an expression increase, ↓ indicates an expression decrease, = indicates comparable expression between the ages. Empty fields indicate expression was not evaluated, in most cases because the gene is not differentially expressed in that nucleus in adults. Grey background represents the genes/nuclei for which we performed a detailed expression quantification. Serial images for most genes are available in ZEBrA, exceptions are indicated by an asterisk.