The Enigmatic Snow Microorganism, Chionaster nivalis, Is Closely Related to Bartheletia paradoxa (Agaricomycotina, Basidiomycota)

Ryo Matsuzaki; Yusuke Takashima; Iwane Suzuki; Masanobu Kawachi; Hisayoshi Nozaki; Seiichi Nohara; Yousuke Degawa

doi:10.1264/jsme2.ME21011

Short Communication

The Enigmatic Snow Microorganism, Chionaster nivalis, Is Closely Related to Bartheletia paradoxa (Agaricomycotina, Basidiomycota)

Ryo Matsuzaki, Yusuke Takashima, Iwane Suzuki, Masanobu Kawachi, Hisayoshi Nozaki, Seiichi Nohara, Yousuke Degawa

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Keywords: meta-amplicon sequencing data, molecular phylogeny, snow ecosystem, snow fungi

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Supplementary material

2021 Volume 36 Issue 2 Article ID: ME21011

DOI https://doi.org/10.1264/jsme2.ME21011

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Abstract

Chionaster nivalis is frequently detected in thawing snowpacks and glaciers. However, the taxonomic position of this species above the genus level remains unclear. We herein conducted molecular analyses of C. nivalis using the ribosomal RNA operon sequences obtained from more than 200 cells of this species isolated from a field-collected material. Our molecular phylogenetic analyses revealed that C. nivalis is a sister to Bartheletia paradoxa, which is an orphan basal lineage of Agaricomycotina. We also showed that C. nivalis sequences were contained in several previously examined meta-amplicon sequence datasets from snowpacks and glaciers in the Northern Hemisphere and Antarctica.

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