Transmission, segregation, and recombination of mitochondrial genomes in zygote clones and protoplast fusion clones of yeast

Summary The average transmission-and recombination frequencies of mitochondrial markers are similar in diploid clones derived from zygotes or from fusion of haploid protoplasts of identical mating type. The transmissional patterns of mitochondrial markers in individual fusion-or zygote-clones, however, are very different. The time needed for regeneration of cell walls of fused protoplasts is found to be mainly responsible for this difference, since delay of first cell division in zygotes leads to similar results.