GENETIC FINE-STRUCTURE OF THE Y-CHROMOSOME OF DROSOPHILA-HYDEI

  • 1 January 1982
    • journal article
    • research article
    • Vol. 101  (2) , 257-277
Abstract
A genetic map of the Y chromosme of D. hydei was constructed from deletion/complementation experiments, with the aid of male sterile mutants of the Y chromosome. Not more than a single complementation group can be detected in each of the lampbrush loop forming sites. Additional complementation groups, functionally independent of lampbrush loops, reside between these loci. Six complementation groups were defined by several methods of mapping. An additional 10 complementation groups are indicated, but their exact definition requires further investigation. The synthetic sterility of mutations in these 10 loci contributes to the difficulty in unequivocally establishing their individual boundaries. Mapping problems also arise from the instability of certain mutants.