Cytological changes induced by ionizing radiations and their possible relation to the production of useful mutations in plants

Sparrow, A.H.

Work conference on radiation induced mutations sponsored by the Biology Department, Brookhaven National Laboratory, Upton, L.I., New York, May 23 and 24, 1956. 76-110

1956


Accession: 014003608

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Abstract
In this review the author considers the following: cytoplasmic effect; physiological effects on chromosomes; radiation-induced structural changes; alteration of chromosome number; the possible relationship between chromosome breakage and mutation; the influence of structural changes on phenotype, viability, growth rate and fertility; special uses of radiation-induced chromosome aberrations; changes in radio-sensitivity brought about by various external and internal factors; ways in which the frequency of complex aberrations may be reduced relative to the frequency of point mutations; and the influence of polyploidy upon the induction of aberrations and mutations.