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  • Title: Difference between two hybrid stocks of mice in the incidence of congenital abnormalities following X-ray exposure of stem-cell spermatogonia.
    Author: Rutledge JC, Cain KT, Hughes LA, Braden PW, Generoso WM.
    Journal: Mutat Res; 1986 Dec; 163(3):299-302. PubMed ID: 3785265.
    Abstract:
    Unbalanced (duplication/deficiency) sperm from balanced reciprocal translocations induced in spermatogonial stem cells of mice generally lead to embryonic lethality around the time of implantation. In a recent study (Generoso et al., 1985), it was found that the incidence of X-ray-induced embryonic lethality differed markedly between two hybrid stocks of irradiated male mice. A parallel difference in the frequencies of reciprocal translocations was observed cytologically in the meiocytes of irradiated males. In the present report, which is an adjunct to the study by Generoso et al. (1985), it was determined whether or not similar differences between the two stocks exist for congenital defects resulting from genetic damage to stem-cell spermatogonia. The results indicate not only an association between the frequencies of induced reciprocal translocations and congenital abnormalities, but also a parallel greater frequency of induced malformations in the (C3H X 101)F1 stock versus the (SEC X C57BL)F1 stock of males.
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