Clonal size-variation of rDNA cluster region on chromosome XII of Saccharomyces cerevisiae.

Abstract excerpt

Using pulsed-field gel electrophoresis (PFGE), we have demonstrated clonal variation in the size of chromosome XII in a diploid strain of Saccharomyces cerevisiae X2180-2D. The sizes of the two chromosome XII homologues were very different: 2600 (L-type) and 1450 kb (S-type). The frequency with which we detected clonal size variation in the diploid, compared to that of the parental clones, was about 15-50% of the...

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