Detection and Separation of Spontaneous and Induced Translocations in Mature and Immature Germ Cells of Drosophila

1 September 1962

journal article
research article
Published by University of Chicago Press in The American Naturalist

Vol. 96 (890) , 309-315
https://doi.org/10.1086/282238

Abstract

Translocations of spontaneous origin were detected from unirradiated females in certain strains of D. virilis. The results for the spontaneous translocations were similar in appearance to the expected results if "clusters" of translocations were recovered from irradiated spermatogonia of males. Additional testing was necessary to separate spontaneous translocations originating in females from induced translocations in males. The method of separation is also applicable to separation of induced translocations of maternal and paternal origin when inseminated females are irradiated. Spontaneous translocations in females involved different chromosomes and therefore offer an evolutionary source of genetic variability of translocations.

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