Occurrence of spontaneous and nitrosoethylurea-induced mutations and potential changes in repair-deficient Drosophila strains
Aslanian, M.M.; Kim, A.I.; Mageramova, L.M.
Genetika 22(2): 268-272
1986
ISSN/ISBN: 0016-6758 PMID: 3082717 Document Number: 272399
X-linked recessive lethal frequencies in mature spermatozoa were studied in repair-deficient Drosophila strains. Frequencies of spontaneous and ethylnitrosourea-induced lethals were enhanced in mus(I)104DI+ and unchanged in mei-9IL+. In addition, the majority of lethals was fixed in stages preceding mature spermatozoa. It was shown that premutational lesions (spontaneous and ethylnitrosourea-induced in both mutants) arise in germ cells, these lesions being realized into mutations in the next generations.