Jhp. Hackstein et R. Hochstenbach, THE ELUSIVE FERTILITY GENES OF DROSOPHILA - THE ULTIMATE HAVEN FOR SELFISH GENETIC ELEMENTS, Trends in genetics, 11(5), 1995, pp. 195-200
The Y chromosomes of Drosophila are necessary for male fertility. They
carry giant genes that have some unconventional properties besides co
ntrolling the motility of the spermatozoa. Classical genetic and molec
ular studies suggest that evolution has favoured the close association
between these genes and repetitive DNA sequences with 'selfish' trait
s.