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The Journal of Heredity 1954:45(5):223-224
© 1954 The American Genetic Association 45:223-224

research-article

CYTOGENETIC ANALYSIS OF A SPONTANEOUS PRE-MEIOTIC MUTATION IN MAIZE

E. J. DOLLINGER, and W. R. SINGLETON*

Abstract

Cytogenetk tests of a spontaneous pre-meiotic R->r mutation indicate that it is an autonomous mutation for the R locus. No evidence was found for a factor, other than the R locus, as a causal agent for the mutation. The mutant behaves as a stable r allele. No evidence was found for chromosomal alteration, pollen or transmission sterility. Thus, within the limits of the tests made, it must be called a point mutation.


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