Reporter:	GFP
Antibody:	anti-GFP (abcam)
Detection system:	Secondary antibody coupled to fluorescein

Structure	Cell Type	Level	Pattern	Image	Note
TS26: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	1A	Mainly expressed in inner pillar cells in the middle and basal turns of the organ of Corti, and no expression was observed in the apical turn.

Structure	Level	Pattern	Image	Note
TS23: cochlear duct epithelium	Present	Regionally restricted	1B-1-4 , 1B-1-5 , 1B-1-1	Mainly expressed in one row of Sox2-positive progenitor cells in the middle and basal turns of the organ of Corti, and no expression was observed in the apical turn.

Structure	Level	Pattern	Image	Note
TS23: cochlear duct epithelium	Present	Regionally restricted	1B-2-4 , 1B-2-1 , 1B-2-5	Mainly expressed in one row of Sox2-positive progenitor cells in the middle and basal turns of the organ of Corti, and no expression was observed in the apical turn.

Structure	Level	Pattern	Image	Note
TS23: cochlear duct epithelium	Present	Regionally restricted	1B-3-4 , 1B-3-1 , 1B-3-5	In the basal turn, expressed in one row of Sox2-positive progenitor cells between the inner hair cells and outer hair cells.

Structure	Cell Type	Level	Pattern	Image	Note
TS26: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	1B-4-4 , 1B-4-5 , 1B-4-1	Expressed in inner pillar cells in the middle and basal turns. Expression was increased compared to that of E15.5. No expression was observed in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS26: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	1B-5-1 , 1B-5-5 , 1B-5-4	Expressed in inner pillar cells in the middle and basal turns. Expression was increased compared to that of E15.5.

Structure	Cell Type	Level	Pattern	Image	Note
TS26: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	1B-6-1 , 1B-6-4 , 1B-6-5	Expressed in inner pillar cells in the middle and basal turns. Expression was increased compared to that of E15.5.

Structure	Level	Pattern	Image	Note
TS23: cochlear duct epithelium	Present	Regionally restricted	2A-1-4 , 2A-1-1 , 2A-1-5	Expressed in one row of supporting cells in the middle and basal turns. No expression was observed in the apical turn.

Structure	Level	Pattern	Image	Note
TS23: cochlear duct epithelium	Present	Regionally restricted	2A-2-5 , 2A-2-4 , 2A-2-1	Expressed in one row of supporting cells in the middle and basal turns. No expression was observed in the apical turn.

Structure	Level	Pattern	Image	Note
TS23: cochlear duct epithelium	Present	Regionally restricted	2A-3-1 , 2A-3-5 , 2A-3-4	Expressed in one row of supporting cells in the middle and basal turns. No expression was observed in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS26: organ of Corti	organ of Corti supporting cell	Present	Regionally restricted	2A-4-1 , 2A-4-5 , 2A-4-4	Expressed in one row of supporting cells in the middle and basal turns. No expression was observed in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS26: organ of Corti	organ of Corti supporting cell	Present	Regionally restricted	2A-5-1 , 2A-5-5 , 2A-5-4	Expressed in one row of supporting cells in the middle and basal turns. No expression was observed in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS26: organ of Corti	organ of Corti supporting cell	Present	Regionally restricted	2A-6-1 , 2A-6-4 , 2A-6-5	Expressed in one row of supporting cells in the middle and basal turns. No expression was observed in the apical turn.

Structure	Level	Pattern	Image	Note
TS27: cochlear duct epithelium	Present	Regionally restricted	3A	Expressed in one row of supporting cells in the middle and basal turns. No expression was observed in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	3D-1-4 , 3D-1-1 , 3D-1-5	Expressed only in the inner pillar cells in the middle and basal turns.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	3D-2-5 , 3D-2-1 , 3D-2-4	Expressed only in the inner pillar cells in the middle and basal turns. Increased expression compared with that of E18.5.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	3D-3-1 , 3D-3-4 , 3D-3-5	Expressed only in the inner pillar cells in the middle and basal turns. Increased expression compared with that of E18.5.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	3D-4-5 , 3D-4-4 , 3D-4-1	Expressed only in the inner pillar cells in the middle and basal turns.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	3D-5-1 , 3D-5-4 , 3D-5-5	Expressed only in the inner pillar cells in the middle and basal turns. Increased expression compared with that of E18.5.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	3D-6-4 , 3D-6-5 , 3D-6-1	Expressed only in the inner pillar cells in the middle and basal turns. Increased expression compared with that of E18.5.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		4_Apical-1 , 4_Apical-3 , 4_Apical-4	Expressed in the inner border cells in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present	Regionally restricted	4_Apical-6 , 4_Apical-5	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn. Decreased expression compared with that of P3.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	4_Apical-6 , 4_Apical-5	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn. Decreased expression compared with that of P3.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		4_Apical-7 , 4_Apical-8	Expressed only in the inner border cells.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		4_Middle-4 , 4_Middle-1 , 4_Middle-3	Expression was similar to P7.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present		4_Middle-4 , 4_Middle-1 , 4_Middle-3	Expression was similar to P7.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present	Regionally restricted	4_Middle-5 , 4_Middle-6	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn. Decreased expression compared with that of P3.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	4_Middle-5 , 4_Middle-6	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn. Decreased expression compared with that of P3.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		4_Middle-8 , 4_Middle-7	Expression was similar to P10.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present		4_Middle-8 , 4_Middle-7	Expression was similar to P10.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		4_Basal-4 , 4_Basal-3 , 4_Basal-1	Expression was similar to P7.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present		4_Basal-4 , 4_Basal-3 , 4_Basal-1	Expression was similar to P7.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present	Regionally restricted	4_Basal-6 , 4_Basal-5	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn. Decreased expression compared with that of P3.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	4_Basal-6 , 4_Basal-5	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn. Decreased expression compared with that of P3.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		4_Basal-7 , 4_Basal-8	Expression was similar to P10.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present		4_Basal-7 , 4_Basal-8	Expression was similar to P10.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present	Regionally restricted	5A-1-1 , 5A-1-2	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	5A-1-1 , 5A-1-2	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		5A-1-4 , 5A-1-3	Only expressed in the inner border cells in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		5A-1-6 , 5A-1-5	Only expressed in the inner border cells in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present	Regionally restricted	5A-2-1 , 5A-2-2	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	5A-2-1 , 5A-2-2	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		5A-2-3 , 5A-2-4	Expression was similar to P7.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present		5A-2-3 , 5A-2-4	Expression was similar to P7.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		5A-2-6 , 5A-2-5	Expression was similar to P10.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present		5A-2-6 , 5A-2-5	Expression was similar to P10.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present	Regionally restricted	5A-3-1 , 5A-3-2	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present	Regionally restricted	5A-3-1 , 5A-3-2	Expressed only in the inner pillar and inner border cells in the middle and basal turns. No expression was observed in the apical turn.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		5A-3-3 , 5A-3-4	Expression was similar to P7.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present		5A-3-3 , 5A-3-4	Expression was similar to P7.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		5A-3-6 , 5A-3-5	Expression was similar to P10.
TS28: cochlear duct epithelium	internal pillar cell of cochlea	Present		5A-3-6 , 5A-3-5	Expression was similar to P10.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		6A-1-5 , 6A-1-1 , 6A-1-4	Expressed only in the inner border cells, not in the inner pillar cells, in all three turns.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	border cell of cochlea	Present		6A-2-1 , 6A-2-4 , 6A-2-5	Expressed only in the inner border cells, not in the inner pillar cells, in all three turns.

Structure	Level	Pattern	Image	Note
TS28: cochlear duct epithelium	Absent		6A-3-1 , 6A-3-4 , 6A-3-5
TS28: organ of Corti	Absent		6A-3-1 , 6A-3-4 , 6A-3-5

Structure	Cell Type	Level	Pattern	Image	Note
TS27: cochlear duct epithelium	border cell of cochlea	Present	Regionally restricted	S1_Apical-5 , S1_Apical-1 , S1_Apical-4	Expressed only in the inner border cells in the middle and basal turns. No expression was observed in the apical turn. Decreased expression compared with that of P1.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: cochlear duct epithelium	border cell of cochlea	Present	Regionally restricted	S1_Middle-4 , S1_Middle-5 , S1_Middle-1	Expressed only in the inner border cells in the middle and basal turns. No expression was observed in the apical turn. Decreased expression compared with that of P1.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: cochlear duct epithelium	border cell of cochlea	Present	Regionally restricted	S1_Basal-4 , S1_Basal-5 , S1_Basal-1	Expressed only in the inner border cells in the middle and basal turns. No expression was observed in the apical turn. Decreased expression compared with that of P1.

Structure	Level	Pattern	Image	Note
TS21: cochlea	Absent			No positive cells in the organ of Corti.