stably decreased rDNA copy number during vegetative growth stably decreased ribosomal DNA copy number during vegetative growth FYPO:0004825 A physical cellular phenotype observed in the vegetative growth phase of the life cycle in which the number of ribosomal DNA (rDNA) repeats present in the rDNA arrays on chromosome III is significantly lower than the range in wild type cells, but remains at the same level over successive generations. midori stably decreased rDNA copy number during mitotic cell cycle stable shortened rDNA during vegetative growth 2015-08-17T13:57:35Z decreased rDNA copy number during vegetative growth