Antibody:	anti-Erbb2 (C18; sc-284)
Detection system:	Biotinylated secondary antibody/[Strept]avidin coupled to horseradish peroxidase
Assay notes:	Embryos were fixed in 70% ethanol/1% acetic acid.

Structure	Level	Pattern	Image	Note
TS20: testis	Present	Single cells	3a	There is expression in most cells in the genital ridge.

Structure	Level	Pattern	Image	Note
TS20: ovary	Present	Single cells	3d	There is expression in most cells in the genital ridge.

Structure	Level	Pattern	Image	Note
TS21: male reproductive system	Present	Single cells	3b	There is expression in most cells in the genital ridge.

Structure	Level	Pattern	Image	Note
TS21: female reproductive system	Present	Single cells	3e	There is expression in most cells in the genital ridge.

Structure	Level	Pattern	Image	Note
TS22: male reproductive system	Present	Single cells	3c	There is expression in most cells in the genital ridge.

Structure	Level	Pattern	Image	Note
TS22: female reproductive system	Present	Single cells	3f	There is expression in most cells in the genital ridge.