Molecular and genetic evidence for a tetrapolar mating system in the basidiomycetous yeast Kwoniella mangrovensis and two novel sibling species.

ABSTRACT: Kwoniella mangrovensis has been described as a sexual species with a bipolar mating system. Phylogenetic analysis of multiple genes places this species together with Kwoniella heveanensis in the Kwoniella clade, a sister clade to that containing two pathogenic species of global importance, Cryptococcus neoformans and Cryptococcus gattii, within the Tremellales. Recent studies defining the mating type loci (MAT) of species in these clades showed that, with the exception of C. neoformans and C. gattii, which are bipolar with a single biallelic multigene MAT locus, several other species feature a tetrapolar mating system with two unlinked loci (homeodomain [HD] and pheromone/receptor [P/R] loci). We characterized several strains from the original study describing K. mangrovensis; two MAT regi

SUBMITTER: Guerreiro MA 

PROVIDER: S-EPMC3647770 | biostudies-literature | 2013 May

REPOSITORIES: biostudies-literature