Fig. 3From: From primordial germ cells to primordial follicles: a review and visual representation of early ovarian development in miceDuring embryonic day 8 (E8) to E9, adhesion between primordial germ cells is downregulated and expression of factors initiating migration signals are upregulated. The gonadal ridge (pink outline) and hindgut (blue outline) secrete chemoattractant compounds to primordial germ cells (red outline) that influence migrationBack to article page