| Abstract: | The MMS-sensitive mutants mus(1) 120M1 and mus(1) 121M1 of Drosophila melanogaster were investigated regarding their effects on spontaneous and X-ray induced (2000 R) aneuploidy in male germ cells, during different stages of spermatogenesis. In matings of males carrying mus mutation and a doubly marked Y-chromosome (BsYy+) with repair proficient y f females, the frequencies of partial loss, nondisjunctions and especially complete loss were significantly higher than in the control. Apparently, MMS-sensitive mutants deal with meiotic processes and maintenance of chromosome structural stability both in females and in males, in somatic and germ cells. |
