Probe:	RIKEN clone 1810009N08
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS27: cortical layer VI	Present	Scattered	6I

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

Structure	Level	Pattern	Image	Note
TS28: cortical layer II	Weak		6K
TS28: cortical layer III	Weak		6K
TS28: cortical layer IV	Weak		6K
TS28: cortical layer V	Weak		6K
TS28: cortical layer VI	Weak		6K

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

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

Structure	Level	Pattern	Image	Note
TS28: cortical layer II	Present		13I	Reduced expression compared with that of P14.
TS28: cortical layer VI	Present		13I	Reduced expression compared with that of P14.
TS28: entorhinal cortex	Present		13I	Reduced expression compared with that of P14.

Structure	Level	Pattern	Image	Note
TS27: dentate gyrus	Present		14G

Structure	Level	Pattern	Image	Note
TS28: dentate gyrus	Present		14H
TS28: hippocampus CA1	Present		14H

Structure	Level	Pattern	Image	Note
TS28: dentate gyrus	Present		14I	Reduced expression compared with that of P14.
TS28: hippocampus CA1	Present		14I	Reduced expression compared with that of P14.
TS28: hippocampus CA3	Present		14I	Reduced expression compared with that of P14.

Structure	Level	Pattern	Image	Note
TS24: cerebral cortex ventricular layer	Strong		16I
TS24: cerebral cortex subventricular zone	Strong	Scattered	16I	Sparsely expressed.

Structure	Level	Pattern	Image	Note
TS27: auditory cortex	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: claustrum	Present			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			Highest expression. Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: claustrum	Present			Highest expression. Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: insular cortex	Present			Highest expression. Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: primary motor cortex	Present			Highest expression. Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: primary visual cortex	Present			Highest expression. Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: frontal association cortex	Present			Highest expression. 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			Highest expression. 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	Weak			Reduced expression compared with that of P14, similar as that of P0. Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: insular cortex	Weak			Reduced expression compared with that of P14, similar as that of P0. Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: primary motor cortex	Weak			Reduced expression compared with that of P14, similar as that of P0. Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: primary visual cortex	Weak			Reduced expression compared with that of P14, similar as that of P0. Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: claustrum	Present			Reduced expression compared with that of P14. Cell counting analysis of expressing cells, summarized in Fig 7D.
TS28: primary somatosensory cortex	Weak			Reduced expression compared with that of P14, similar as that of P0. Cell counting analysis of expressing cells, summarized in Fig 7D. Most positive cells were Rbfox3/NeuN-positive neurons (see Fig 8C).
TS28: frontal association cortex	Present			Reduced expression compared with that of P14. Cell counting analysis of expressing cells, summarized in Fig 7D. Most positive cells were Rbfox3/NeuN-positive neurons (see Fig 8C).