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1 Department of Biology, University of Western Ontario, London, Ontario, Canada N6A 5B7
2 Department of Entomology, Cornell University, Ithaca, NY 14853, USA
3 Department of Biology, Syracuse University, Syracuse, NY 13244, USA
Correspondence
Marc-André Lachance
lachance{at}uwo.ca
Three heterothallic, haplontic yeast species, Metschnikowia hamakuensis, Metschnikowia kamakouana and Metschnikowia mauinuiana, are described from isolates associated with endemic nitidulid beetles living on various endemic plants on three Hawaiian islands. As morphospecies, they are similar to Metschnikowia hawaiiensis, but based on mating compatibility and ascospore formation, they can be assigned clearly to distinct biological species. Analysis of ITS/5·8S and D1/D2 large subunit rDNA sequences shows that, with M. hawaiiensis and two other isolates, these species form a distinct subclade within the large-spored Metschnikowia species, indicating that they are Hawaiian endemics. Type cultures are: M. hamakuensis, UWOPS 04-207.1T=CBS 10056T=NRRL Y-27834T (type, h+) and UWOPS 04-204.1=CBS 10055=NRRL Y-27833 (allotype, h); M. kamakouana, UWOPS 04-112.5T=CBS 10058T=NRRL Y-27836T (type, h+) and UWOPS 04-109.1=CBS 10057=NRRL Y-27835 (allotype, h); and M. mauinuiana, UWOPS 04-190.1T=CBS 10060T=NRRL Y-27838T (type, h+) and UWOPS 04-110.4=CBS 10059=NRRL Y-27837 (allotype, h).
The GenBank/EMBL/DDBJ accession numbers for the ITS/5·8S and D1/D2 LSU rDNA sequences of the novel isolates identified in this study are shown in Fig. 2.
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