Spore conjugation between Saccharomyces cerevisiae and S. uvarum strains yields hybrids which have mitochondria of only a parental type: either of S. cerevisiae or S. uvarum. The peculiarity of examined hybrids is due to the homogeneity of their clone populations that are consisting of cells, all characterised by the same mitochondrial type. It seems to be probable to suppose an incompatibility of parental mitochondrial DNA (mtDNA).
Inheritance of mitochondrial DNA in interspecific Saccharomyces hybrids / Pulvirenti, Andrea; C., Caggia; C., Restuccia; Giudici, Paolo; C., Zambonelli. - In: ANNALS OF MICROBIOLOGY. - ISSN 1590-4261. - STAMPA. - 50:(2000), pp. 61-64.