Robuta

https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-111-2-271
In a haploid cell culture of Saccharomycodes ludwigii, sporogenous diploid cells homozygous for all the genetic markers including mating type were effectively...
saccharomycodes ludwigiidirectdiploidizationoccurrencepolyploidy