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Research article - Peer-reviewed, 2022

New findings on the fungal species Tricholoma matsutake from Ukraine, and revision of its taxonomy and biogeography based on multilocus phylogenetic analyses

Aoki, Wataru; Bergius, Niclas; Kozlan, Serhii; Fukuzawa, Fuminori; Okuda, Hitomi; Murata, Hitoshi; Ishida, Takahide A.; Vaario, Lu-Min; Kobayashi, Hisayasu; Kalmis, Erbil; Fukiharu, Toshimitsu; Gisusi, Seiki; Matsushima, Ken-ichi; Terashima, Yoshie; Narimatsu, Maki; Matsushita, Norihisa; Ka, Kang-Hyeon; Yu, Fuqiang; Yamanaka, Takashi; Fukuda, Masaki;
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Abstract

Matsutake mushrooms are among the best-known edible wild mushroom taxa worldwide. The representative Tricholoma matsutake is from East Asia and the northern and central regions of Europe. Here, we report the existence of T. matsutake under fir trees in Eastern Europe (i.e., Ukraine), as confirmed by phylogenetic analysis of nine loci on the nuclear and mitochondrial genomes. All specimens from Japan, Bhutan, China, North Korea, South Korea, Sweden, Finland, and Ukraine formed a T. matsutake clade according to the phylogeny of the internal transcribed spacer region. The European population of T. matsutake was clustered based on the )32 tubulin gene, with a moderate bootstrap value. In contrast, based on analyses of three loci, i.e., rpb2, tef1, and the )32 tubulin gene, T. matsutake specimens sampled from Bhutan and China belonged to a clade independent of the other specimens of this species, implying a genetically isolated population. As biologically available type specimens of T. matsutake have not been designated since its description as a new species from Japan in 1925, we established an epitype of this fungus, sampled in a Pinus densiflora forest in Nagano, Japan.

Keywords

bioresource conservation; edible mycorrhizal mushroom; lectotype; population analysis

Published in

Mycoscience
2022, Volume: 63, number: 5, pages: 197-214
Publisher: MYCOLOGICAL SOC JAPAN

UKÄ Subject classification

Microbiology
Biological Systematics

Publication identifier

DOI: https://doi.org/10.47371/mycosci.2022.07.004

Permanent link to this page (URI)

https://res.slu.se/id/publ/121399