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Abstract

During studies of yeasts associated with soil in a Cerrado–Atlantic Rain Forest ecotone site in Brazil, three orange-pigmented yeast strains were isolated from samples collected in Minas Gerais state, Brazil. Molecular analyses combining the 26S rRNA gene (D1/D2 domains) and the internal transcribed spacer (ITS) sequences as well as whole-genome sequence data showed that these strains could not be ascribed to any known species in the basidiomycetous genus , and thus they are considered to represent a novel species for which the name sp. nov. is proposed. The holotype is CBS 16121 and the MycoBank number is MB 839315. The occurrence of in a tropical region is unique for the genus, since all other species occur in temperate regions. Two factors appear to contribute to the distribution of the novel taxon: first, the region where it was found has relatively moderate temperature ranges and, second, an adaptation to grow or withstand temperatures higher than those of the other species in the genus seems to be in place.

Funding
This study was supported by the:
  • the Natural Science and Engineering Council of Canada
    • Principle Award Recipient: Marc-AndréLachance
  • Fundação de Amparo à Pesquisa do Estado de Minas Gerais (Award APQ-01525-14, APQ-01477-13 and APQ-02552-15)
    • Principle Award Recipient: CarlosA. Rosa
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (Award 407415/2013-1 and 0457499/2014-1)
    • Principle Award Recipient: CarlosA. Rosa
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2021-11-02
2024-04-24
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