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Abstract

Three yeast strains were isolated from an olive paste sample (CBS 18661) and two samples of olive oil (CBS 18662 and CBS 18660) were collected in two different mills in Verona province, Italy. The sequence comparison of the D1/D2 domains of the LSU rRNA gene and the internal transcribed space (ITS) regions indicated that these strains belonged to the genus . Phylogenetic analysis of concatenated sequences of the ITS regions and the D1/D2 domains indicated that they represented members of two distinct species. Strain CBS 18661 and CBS 18662 showed sequence divergence of 2.7–2.8% (13–15 nucleotide substitutions) in the D1/D2 domains from the holotype of , , and and 5.9–6.2% identities (36–38 nucleotide substitutions) in the ITS regions from and . Strain CBS 18660 showed sequence divergence of 0.75–1.1% (4–6 nucleotide substitutions) from and and 3.2–4.1% (18–24 nucleotide substitutions) in the ITS regions from , , and . The strains CBS 18661 (PP391581-PP375117) and CBS 18662 (PP391582-PP375118) are named f.a. sp. nov., whereas CBS 18660 (PP149061-PP130150) is assigned as f.a. sp. nov. The MycoBank numbers are MB 854683 and MB 854684, respectively. In addition, 11 species belonging to the clade have been reassigned to the genus with the proposal of the following new combinations: comb. nov., comb. nov., comb. nov., comb. nov., comb. nov., comb. nov., comb. nov., comb. nov., comb. nov., comb. nov. and comb. nov.

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2024-12-02
2026-02-07

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