Fig. 2. Meiotic germ cells interfere with cord formation. Germ cells and somatic
cells were isolated using an immunomagnetic cell sorting system. Somatic cell
fractions from 12.5 dpc XY gonads were aggregated with 11.5 dpc XX germ cell
fraction (A), 11.5 dpc XY germ cell fraction (B), 14.5 dpc XX somatic fraction
(C) or 14.5 dpc XX germ cell fraction (D) and cultured for 48 hours. Formation
of testis cords was shown by immunostaining for laminin (green), a component
of the basal lamina of testis cords (red arrows).