The Reinstatement of the Genus Kloeckeraspora Niehaus (1932) (Apiculate Yeast)
DOI:
https://doi.org/10.51094/jxiv.317Keywords:
Kloeckeraspora osmophila, Kloeckerasora vineae, Kloeckeraspora occidentalis, Hanseniaspora valvyensis, Hanseniaspora uvarumAbstract
The genus Kloeckeraspora Niehaus was introduced with Kloeckerasora osmophila Niehaus. However, the genus has been neither accepted nor recognized for a long time due to the unclear generic concept. In the phylogeneetic tree based on the 26S rRNA gene D1/D2 domain sequences derived from the neighbour-joining method for the seven species, the three species assigned to the genus Kloeckeraspora represented an extremely long branch to the Hanseniaspora species. The calculated pair-wise sequence similarities were extremely low (86.2 - 88.5%). Incidentally, the sequence similarity between Vanderwatozyma polyspora and Saccharomyces cerevisiae used as reference standards was 94.0%. Within the respective genus, the similarities were 93.6 - 98.5% in the genus Kloeckeraspora and 96.3 - 99.1% in the genus Hanseniaspora. From the experimental data, the genus Kloeckeraspora should be unequivocally accepted phylogenetically and taxonomically. However, the two genera were not yet perfectly taxonomic homogeneous-natured, since there were a few species showing below 98% sequence similarity and longer phylogenetic branches in the two genera Kloeckeraspora and Hanseniaspora.
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Submitted: 2023-02-28 01:19:56 UTC
Published: 2023-02-28 23:43:32 UTC
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Copyright (c) 2023
Taweesak Malimas
Huong Thi Lan Vu
Pattaraporn Yukphan
Somboon Tanasupawat
Yuzo Yamada
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
