Probe:	RIKEN clone G530102I21
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS27: cortical layer II	Weak		6E
TS27: cortical layer III	Weak		6E

Structure	Level	Pattern	Image	Note
TS28: cortical layer II	Present		6F
TS28: cortical layer III	Present		6F
TS28: cortical layer IV	Present		6F
TS28: cortical layer V	Present		6F
TS28: cortical layer VI	Present		6F

Structure	Level	Pattern	Image	Note
TS28: cortical layer II	Present		6G	Decreased expression compared with that of P14.
TS28: cortical layer III	Present		6G	Decreased expression compared with that of P14.
TS28: cortical layer V	Present		6G	Decreased expression compared with that of P14.
TS28: cortical layer VI	Present		6G	Decreased expression compared with that of P14.

Structure	Level	Pattern	Image	Note
TS28: primary somatosensory cortex	Present		7B , 7A

Structure	Cell Type	Level	Pattern	Image	Note
TS28: frontal association cortex	neuron	Present		8B P14 mG45b	Most positive cells were Rbfox3/NeuN-positive neurons.

Structure	Level	Pattern	Image	Note
TS28: frontal association cortex	Present		8B Adult mG45b	Most positive cells were Rbfox3/NeuN-positive neurons.

Structure	Level	Pattern	Image	Note
TS27: cortical layer II	Weak		13D
TS27: cortical layer III	Weak		13D
TS27: entorhinal cortex	Weak		13D

Structure	Level	Pattern	Image	Note
TS28: cortical layer II	Strong		13E
TS28: cortical layer III	Strong		13E
TS28: cortical layer V	Strong		13E
TS28: cortical layer VI	Strong		13E
TS28: entorhinal cortex	Strong		13E

Structure	Level	Pattern	Image	Note
TS28: cortical layer II	Strong		13F
TS28: cortical layer III	Strong		13F
TS28: cortical layer V	Strong		13F
TS28: cortical layer VI	Strong		13F
TS28: entorhinal cortex	Strong		13F

Structure	Level	Pattern	Image	Note
TS27: hippocampus CA1	Present		14D

Structure	Level	Pattern	Image	Note
TS28: hippocampus CA1	Strong		14E
TS28: hippocampus CA3	Strong		14E

Structure	Level	Pattern	Image	Note
TS28: dentate gyrus	Strong		14F
TS28: hippocampus CA1	Strong		14F
TS28: hippocampus CA3	Strong		14F

Structure	Level	Pattern	Image	Note
TS24: neocortex	Absent		16H

Structure	Level	Pattern	Image	Note
TS27: auditory cortex	Weak			Cell counting analysis of expressing cells, summarized in Fig 7D.
TS27: claustrum	Weak			Cell counting analysis of expressing cells, summarized in Fig 7D.
TS27: insular cortex	Weak			Cell counting analysis of expressing cells, summarized in Fig 7D.
TS27: primary motor cortex	Weak			Cell counting analysis of expressing cells, summarized in Fig 7D.
TS27: visual cortex	Weak			Cell counting analysis of expressing cells, summarized in Fig 7D.
TS27: frontal association cortex	Weak			Cell counting analysis of expressing cells, summarized in Fig 7D. Most positive cells were Rbfox3/NeuN-positive neurons (see Fig 8C).
TS27: primary somatosensory cortex	Weak			Cell counting analysis of expressing cells, summarized in Fig 7D. Most positive cells were Rbfox3/NeuN-positive neurons (see Fig 8C).

Structure	Level	Pattern	Image	Note
TS28: auditory cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: claustrum	Present			Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: insular cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: primary motor cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: primary visual cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: frontal association cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D. Most positive cells were Rbfox3/NeuN-positive neurons (see Fig 8C).
TS28: primary somatosensory cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D. Most positive cells were Rbfox3/NeuN-positive neurons (see Fig 8C).

Structure	Level	Pattern	Image	Note
TS28: insular cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D. Highest expression.
TS28: primary visual cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D. Highest expression.
TS28: auditory cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D. Decreased expression compared with that of P14.
TS28: claustrum	Present			Cell counting analysis of expressing cells, summarized in Fig 7D. Decreased expression compared with that of P14.
TS28: primary motor cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D. Decreased expression compared with that of P14.
TS28: primary somatosensory cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D. Similar as in the P14. Most positive cells were Rbfox3/NeuN-positive neurons (see Fig 8C).
TS28: frontal association cortex	Present			Cell counting analysis of expressing cells, summarized in Fig 7D. Highest expression. Most positive cells were Rbfox3/NeuN-positive neurons (see Fig 8C).