Nature Genetics
3, 56 - 61 (1993)
doi:10.1038/ng0193-56
Large deletions and other gross forms of chromosome imbalance compatible with viability and fertility in the mouseB.M. Cattanach1, M.D. Burtenshaw1, C. Rasberry1
& E.P. Evans1
1Division of Genetics, MRC Radiobiology Unit, Chilton, Didcot, Oxfordshire OX11 ORD, UK Large deletions and other gross forms of chromosome imbalance are known in man but have rarely been found in the mouse. By screening progeny of spermatogonially irradiated male mice for a combination of runting and other phenotypic effects, we have identified animals that have large deletions comprising from 2.5−30 percent of the length of individual chromosomes, or other major chromosome changes, which are compatible with viability and fertility. Certain chromosome regions appear particularly susceptible to the generation of viable deletions and this has implications for radiation mutagenesis studies. Correlations with human deletions are also indicated.
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