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Citation
Sarantseva, S.V., Khromykh, I.M. (2001). [Effect of gamma-irradiation on oogenesis of Drosophila mutants defective for reparation and meiotic recombination.]  Genetika, Moscow 37(6): 770--778.
FlyBase ID
FBrf0138417
Publication Type
Research paper
Abstract

Effects of mutations rad201, mei-9, and mei-41 on cell sensitivity to gamma-radiation in Drosophila oogenesis were studied. Females of the control (Oregon R) and mutant strains were irradiated at a dose of 15 Gy. For 9 days after the irradiation, the number of eggs in consecutive day batches, the frequency of dominant lethals (DLs) among the eggs, and the cytologically recorded distribution of oocytes for stages of their development, and the frequency of egg chamber degeneration in female ovaries were estimated. As a result of joint analysis of the data, different oogenesis stages were characterized with regard to the frequency of two radiation-induced events: appearance of DLs in oocytes and degeneration of egg chambers due to apoptosis of nurse cells. It was shown that the mutations affect these parameters only at particular stages of early oogenesis, at which previtellogenetic growth of egg follicles and meiotic recombination in oocytes occur. Mutation rad201G1 increased the frequency of DLs and egg chamber degeneration, mei-41D5 affected only the DL frequency, and mei-9a, in addition to enhancing the chamber degeneration frequency, promoted radiation "rescue" of some oocytes from the DL induction.

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    Language of Publication
    Russian
    Additional Languages of Abstract
    English
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Genetika, Moscow
    Title
    Genetika
    Publication Year
    1965-
    ISBN/ISSN
    0016-6758
    Data From Reference
    Alleles (3)
    Genes (3)