Summary
Reversion at the gl 1 locus in maize has been studied by using crosses between 10 gl 1 mutants of independent origin and an o 2 gl st sl stock. The observed reversion frequencies have been explained on the basis of intragenic recombination. These frequencies make it possible to detect in the gl 1 cistron the existence of different positions where mutational events take place.
The finding of a high number of reversions with parental outside markers can be explained by genetic mechanisms different from classical crossing-over, but comparable to those known in microorganisms as “high negative interference”.
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Communicated by E. Hadorn and G. Melchers
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Salamini, F., Lorenzoni, C. Genetical analysis of glossy mutants of maize. Molec. Gen. Genet. 108, 225–232 (1970). https://doi.org/10.1007/BF00283352
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DOI: https://doi.org/10.1007/BF00283352