Genetical Research

Research Article

The tolerance of aneuploidy in yeast

Elizabeth M. Parrya1 p1 and B. S. Coxa1

a1 Botany School, South Parks Road, Oxford


Single ascospore cultures from triploids were screened as a potential source of disomic tester stocks for the purpose of genetical mapping of chromosomes in yeast. A high tolerance of aneuploidy was found, and strains disomic for only one chromosome were rare. There was a high occurrence of strains disomic at specific chromosomes and in certain multiple combinations of disomic chromosomes.

(Received August 03 1970)


p1 Present address: Department of Genetics, University College of Swansea, Swansea.