Journal
MICROBIOLOGY
Volume 89, Issue 3, Pages 294-300Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S002626172003011X
Keywords
Komagataella methylotrophic yeasts; Pichia pastoris; multigenic phylogenetic analysis
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Funding
- National Science Foundation (United States) [1349395]
- [595-00003-19 PR]
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Molecular genetic study of 22 methanol-assimilating Komagataella strains maintained at the UCDFST collection (United States) was carried out. Multigene phylogenetic analysis revealed that strains previously assigned to Pichia pastoris based on the standard taxonomic tests actually belong to four different species: K. pastoris, K. phaffii, K. mondaviorum, and K. ulmi. Seven Komagataella species are practically indistinguishable by the standard morphological and physiological tests, and have similar D1/D2 sequences. Multigene phylogenetic analysis should be applied for reliable delineation of all seven Komagataella species. The biogeography of Komagataella yeasts is noteworthy. K. mondaviorum, K. kurtzmanii, K. phaffii, K. populi, and K. ulmi have been found only in North America, while K. pastoris and K. pseudopastoris are characteristic of Europe.
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