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Noffsinger CR, Adamčíková K, Eberhardt U, Caboň M, Bazzicalupo A, Buyck B, Kaufmann H, Weholt Ø, Looney BP, Matheny PB, Berbee ML, Tausan D, Adamčík S. Three new species in Russula subsection Xerampelinae supported by genealogical and phenotypic coherence. Mycologia 2024; 116:322-349. [PMID: 38363178 DOI: 10.1080/00275514.2023.2295957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/13/2023] [Indexed: 02/17/2024]
Abstract
Xerampelinae is a subsection composed of species of ectomycorrhizal fungi belonging to the hyperdiverse and cosmopolitan genus Russula (Russulales). Species of Xerampelinae are recognized by their fishy or shrimp odor, browning context, and a green reaction to iron sulfate. However, species delimitation has traditionally relied on morphology and analysis of limited molecular data. Prior taxonomic work in Xerampelinae has led to the description of as many as 59 taxa in Europe and 19 in North America. Here we provide the first multilocus phylogeny of European and North American members based on two nrDNA loci and two protein-coding genes. The resulting phylogeny supports the recognition of 17 species-rank Xerampelinae clades; however, higher species richness (~23) is suggested by a more inclusive nuclear rDNA internal transcribed spacer region ITS1-5.8S-ITS2 (ITS barcode) analysis. Phylogenetic and morphological analyses support three new species with restricted geographic distributions: R. lapponica, R. neopascua, and R. olympiana. We confirm that the European species R. subrubens is present in North America and the North American species R. serissima (previously known as R. favrei) is present in Europe. Most other Xerampelinae appear restricted to either North America or Eurasia, which indicates a high degree of regional endemism; this includes R. xerampelina, a name widely applied to North American taxa, but a species restricted to Eurasia.
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Affiliation(s)
- Chance R Noffsinger
- Department of Ecology and Evolutionary Biology, University of Tennessee, 1416 Circle Drive, Knoxville, Tennessee 37996
| | - Katarína Adamčíková
- Department of Plant Pathology and Mycology, Institute of Forest Ecology, Slovak Academy of Sciences, Akademická 2, Zvolen, Nitra 94901, Slovakia
| | - Ursula Eberhardt
- Staatliches Museum für Naturkunde Stuttgart, Rosenstein 1, Stuttgart 70191, Germany
| | - Miroslav Caboň
- Laboratory of Molecular Ecology and Mycology, Institute of Botany, Plant Science and Biodiversity Center, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava 84523, Slovakia
| | - Anna Bazzicalupo
- Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond TW9 3DS, UK
| | - Bart Buyck
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, École partique des hautes études (EPHE), Université des Antilles, CP 39, 57 rue Cuvier, Paris 75005, France
| | | | | | - Brian P Looney
- Department of Biology, Duke University, 130 Science Drive, Durham, North Carolina 27708
| | - P Brandon Matheny
- Department of Ecology and Evolutionary Biology, University of Tennessee, 1416 Circle Drive, Knoxville, Tennessee 37996
| | - Mary L Berbee
- Department of Botany, University of British Columbia, 6270 University Boulevard no. 3158, Vancouver, BC V6T 1Z4, Canada
| | - Daniel Tausan
- Department of Botany, University of British Columbia, 6270 University Boulevard no. 3158, Vancouver, BC V6T 1Z4, Canada
| | - Slavomír Adamčík
- Laboratory of Molecular Ecology and Mycology, Institute of Botany, Plant Science and Biodiversity Center, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava 84523, Slovakia
- Department of Botany, Faculty of Natural Sciences, Comenius University in Bratislava, Révová 39, Bratislava 81102, Slovakia
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Han YX, Liang ZQ, Zeng NK. Notes on four species of Russula subgenus Heterophyllidiae (Russulaceae, Russulales) from southern China. Front Microbiol 2023; 14:1140127. [PMID: 37025637 PMCID: PMC10072125 DOI: 10.3389/fmicb.2023.1140127] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 02/23/2023] [Indexed: 03/30/2023] Open
Abstract
Heterophyllidiae, one of the main subgenus of Russula (Russulaceae, Russulales), is both ecologically and economically important. Although many studies have focused on subgenus Heterophyllidiae in China, the diversity, taxonomy, and molecular phylogeny still remained incompletely understood. In the present study, two new species, R. discoidea and R. niveopicta, and two known taxa, R. xanthovirens and R. subatropurpurea, were described based on morphology and molecular phylogenetic analyses of ITS and 28S DNA sequences with new collections of subgenus Heterophyllidiae from southern China. Both morphological and phylogenetic analyses consistently confirmed that R. niveopicta and R. xanthovirens belong to the subsect. Virescentinae, R. discoidea and R. subatropurpurea come under subsect. Heterophyllae, and R. prasina is synonymized with R. xanthovirens.
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Affiliation(s)
- Yun-Xiao Han
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, School of Pharmacy, Hainan Medical University, Haikou, China
| | - Zhi-Qun Liang
- College of Science, Hainan University, Haikou, China
- *Correspondence: Zhi-Qun Liang,
| | - Nian-Kai Zeng
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, School of Pharmacy, Hainan Medical University, Haikou, China
- Nian-Kai Zeng,
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