1887

Abstract

Seven yeast strains were isolated from the gut of insect larvae and decayed wood, which were collected from three localities near Nanyang, Henan Province, China. These strains were identified as two novel species through comparison of sequences in the D1/D2 domains of the large subunit (LSU) rRNA gene and other taxonomic characteristics. sp. nov. was closely related to species in the clade and produced one to four spheroid ascospores in a deliquescent ascus. The D1/D2 sequence of sp. nov. differed from its closest relative, () sp. NRRL Y-12824, by 3.6  % sequence divergence (16 substitutions and 4 gaps). The species also differed from its four closest known species, , , and , by 4.1–4.4  % sequence divergence (22–24 substitutions and 0–2 gaps) in the D1/D2 sequences. sp. nov. belonged to the clade, and its nearest phylogenetic neighbours were , , and with 3.2–4.2  % sequence divergence (16–21substitutions and 1 gap) in the D1/D2 sequences. In comparison with previously established species, sp. nov. formed one hat-shaped ascospore in a persistent ascus. The type strain of sp. nov. is NYNU 14658 ( = CICC 33049 = CBS 13912), and the type strain of sp. nov. is NYNU 14666 ( = CICC 33048 = CBS 13913).

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2015-09-01
2019-12-11
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