Functional co-operation between the nuclei of Saccharomyces cerevisiae and mitochondria from other yeast species

M. Spirek, A. Horvath, Jure Piskur, P. Sulo

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We elaborated a simple method that allows the transfer of mitochondria from collection yeasts to Saccharomyces cerevisiae. Protoplasts prepared from different yeasts were fused to the protoplasts of the ade2-1, ura3-52, kar1-1, rho (0) strain of S. cerevisiae and were selected for respiring cybrids on plates containing 5-fluoroorotic acid and a non-fermentable carbon source. The identity of putative cybrids was assessed by restriction analysis of mitochondrial DNA, pulse field electrophoresis and tetrad analysis. In the comprehensive screening, only mitochondrial genomes from synonymous species (S. italicus, S, oviformis, S. capensis and S. chevalieri) exhibited complete compatibility with S. cerevisiae nuclei. The closely related S. douglasii mitochondrial genome could also partially restore respiration-deficiency in rho (0) S. cerevisiae, whereas mitochondrial genomes from phylogenetically less related species could not.
Original languageEnglish
JournalCurrent Genetics
Volume38
Issue number4
Pages (from-to)202-207
ISSN0172-8083
DOIs
Publication statusPublished - 2000

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