Taxonomic Novelties and New Records of Amanita Subgenus Amanitina from Thailand

Yuan S Liu; Jian-Kui Liu; Jaturong Kumla; Nakarin Suwannarach; Saisamorn Lumyong

doi:10.3390/jof9060601

Taxonomic Novelties and New Records of Amanita Subgenus Amanitina from Thailand

J Fungi (Basel). 2023 May 24;9(6):601. doi: 10.3390/jof9060601.

Authors

Yuan S Liu^{1

2

3}, Jian-Kui Liu⁴, Jaturong Kumla^{1

3}, Nakarin Suwannarach^{1

3}, Saisamorn Lumyong^{1

3

5}

Affiliations

¹ Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
² Doctor of Philosophy Program in Applied Microbiology (International Program), Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
³ Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai 50200, Thailand.
⁴ School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 611731, China.
⁵ Academy of Science, The Royal Society of Thailand, Bangkok 10300, Thailand.

Abstract

The Amanita subgenus Amanitina contains six sections, and the species diversity of this subgenus has still not been explored in Thailand. Twenty samples collected in 2019 and 2020, which had the morphological characteristics of the Amanita subgen. Amanitina, were observed in this study. Both the microscopical characteristics and multi-gene phylogenetic analyses of the ITS, nrLSU, RPB2, TEF1-α, and TUB gene regions revealed that the 20 samples represented nine species and dispersed into four sections. Remarkably, three taxa were different from any other currently known species. Here, we describe them as new to science, namely A. albifragilis, A. claristriata, and A. fulvisquamea. Moreover, we also recognized six interesting taxa, including four records that were new to Thailand, viz. A. cacaina, A. citrinoannulata, A. griseofarinosa, and A. neoovoidea, as well as two previously recorded species, A. caojizong and A. oberwinkleriana. Moreover, we provide the first RPB2 and TEF1-α gene sequences for A. cacaina. Detailed descriptions, illustrations as line drawings, and comparisons with related taxa are provided.

Keywords: Amanitaceae; multi-gene phylogeny; mycorrhizal fungi; species diversity; three new species.

Grants and funding

This work was supported by grants from Chiang Mai University and partially supported by grants from Plant Genetic Conservation Project under the Royal initiative of Her Royal Highness Princess Maha Chakri Sirindhorn, Chiang Mai University (R000032658), and National Research Council of Thailand (N42A650198).