title: Catching speciation in the act: Metschnikowia bowlesiae sp. nov., a yeast species found in nitidulid beetles of Hawaii and Belize.
abstract: We describe the species Metschnikowia bowlesiae sp. nov. based on the recovery of six isolates from Hawaii and Belize. The species belongs to the Metschnikowia arizonensis subclade of the large-spored Metschnikowia clade. The isolates are haploid and heterothallic. Both Hawaiian strains had the mating type h(+) and the Belizean strains were h(-). Paraphyletic species structures observed in some ribosomal DNA sequence analyses suggest that M. bowlesiae sp. nov. might represent an intermediate stage in a succession of peripatric speciation events from Metschnikowia dekortorum to Metschnikowia similis and might even hybridize with these species. The type of M. bowlesiae sp. nov. is strain UWOPS 04-243x5 (CBS 12940(T), NRRL Y-63671) and the allotype is strain UWOPS 12-619.1 (CBS 12939(A), NRRL Y-63670).
authors.affiliation: Department of Biology, University of Western Ontario, London, ON, N6A 5B7, Canada, lachance@uwo.ca.
authors.forename: Marc-André
authors.initials: MA
authors.lastname: Lachance
authors.forename: Alexandra N
authors.initials: AN
authors.lastname: Fedor
mesh_terms: D000818:Animals; D001531:Belize; D001517:Coleoptera / Q000382:microbiology*; D021903:DNA, Ribosomal Spacer; D020459:Genes, rRNA; D006254:Hawaii; D055163:Metschnikowia / Q000145:classification* / Q000235:genetics / Q000254:growth & development; D016533:Mycological Typing Techniques; D010641:Phenotype; D010802:Phylogeny
chemical_list: D021903:DNA, Ribosomal Spacer