Involution of genital function with age studied as an index aging in Drosophila melanogaster]

Reproductive system in Drosophila estimated by fertility in female and fertilizing power in male gradually decreased with age. Physiological changes as a function of age occur slowly in virgin females and their ageing seems really slower than those observed in inseminated ones. On the other hand, genital function involution is the same in virgin and mated males and seems independent of aging.