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Effect of methylmethane sulfonate-sensitive mutations on nondisjunction and loss of sex chromosomes in Drosophila males

Kim, A.I.; Aslanian, M.M.

Genetika 19(12): 2022-2027

1983

ISSN/ISBN: 0016-6758
PMID: 6420234
Document Number: 213850
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.

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