Fig. 1

Photographs of zebrafish and mouse ovaries and testis. a A zebrafish ovary after being dissected into several pieces, followed by fixing with 4% PFA/PBS and washing with PBS. b A mouse ovary after being fixed with 4% PFA/PBS and washed with PBS. c-f A mouse testis after being fixed with 4% PFA/PBS and washed with PBS (c) that was held with forceps (d) and cut into two pieces with a razor blade according to the median plane (e and f). Bars: 2 mm