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The effects of X-rays on the chromosomes of locust embryos

IV. Dose-response and variation in sensitivity of the cell cycle for the induction of chromatid aberrations

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Abstract

The variation in yield and the dose-response for chromatid aberration types following x-irradiation of Schistocerca gregaria embryo cells is described. Marked variations in yield are found for all aberration types during the G2 and latter part of S stages of interphase. Only gaps appear to follow similar curves, other aberration types having unique patterns of response. The dose exponents for the various chromatid aberration types are similar to, but lower than, those reported for other organisms. Chromatid “breaks” appear to have a dose exponent greater than 1.0 — a fact which is in conformation with the exchange hypothesis. The chromosome radiosensitivity of this organism is similar to that reported for other organisms.

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Authors and Affiliations

  1. Department of Genetics, University of Birmingham, UK

    D. P. Fox

  2. Department of Genetics, Marischal College, Aberdeen, Scotland

    D. P. Fox

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  1. D. P. Fox
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Fox, D.P. The effects of X-rays on the chromosomes of locust embryos. Chromosoma 20, 413–441 (1967). https://doi.org/10.1007/BF00394263

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  • DOI: https://doi.org/10.1007/BF00394263

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