MaleReproFIG 25: Male germ line development.

Illustration showing the stages of germ line formation in the developing male. (Gbl) Gonadal basal lamina; (DTC) distal tip cell; (SPm) somatic gonadal primordium of the male; (DG) distal gonad; (PG) proximal gonad. (Adapted from Schedl, 1997.)