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Réversion à haute fréquence d'un gène nicotinique moins chez le Coprinus radiatus

High frequency of reversion of a nicotinic acid gene in coprinus radiatus

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Summary

The cross of the nicotinic acid requiring mutant nic-2 with the wild type strain gives rise to the following tetrads: (2nic + 2nic −), (3nic +, 1nic −) and (4nic +). Genetic analysis has ruled out the hypothesis that the nicotinic acid requirement of this mutant is controlled by several loci. The nic-2 marker has been presisely located on chromosome II of Coprinus. It reverts with high frequency (20 to 30%) to the wild type allele. Reversion is not the result of recombination (at least directly). It seems to be an autonomous property of the marker.

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Authors and Affiliations

  1. Centre de Génétique Moléculaire du C. N. R. S., Gif sur Yvette (91), France

    J. L. Guerdoux

  2. faculté des sciences d'Orsay 9, France

    J. L. Guerdoux

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  1. J. L. Guerdoux
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Communicated by G. E. Magni

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Guerdoux, J.L. Réversion à haute fréquence d'un gène nicotinique moins chez le Coprinus radiatus . Molec. Gen. Genet. 105, 334–343 (1969). https://doi.org/10.1007/BF00277588

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  • DOI: https://doi.org/10.1007/BF00277588

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