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Paxillus rubicundulus (Boletales, Paxillaceae) and two new alder-specific ectomycorrhizal species, Paxillus olivellus and Paxillus adelphus, from Europe and North Africa.
Fungal Biol. 2016 05; 120(5):711-28.FB

Abstract

Paxillus rubicundulus P.D. Orton has been shown to be a complex of at least three ectomycorrhizal taxa strictly associated with alders (Alnus) in Europe, P. rubicundulus s. str., and two undescribed clades. To assess the taxonomic status of these three clades and their phylogenetic relationships, phylogenetic analyses of two independent gene regions (ITS and gpd), combined with macro- and micromorphological comparisons of genetically identified specimens, were carried out. A total of 85 sequences were successfully obtained from basidiomata and alder mycorrhizae collected in France and Algeria and combined with GenBank and UNITE sequences. The phylogenetic results and estimates of genetic diversity confirmed that the three clades are distinct species, often found in sympatry. As a result, P. rubicundulus s. str. was redefined based on the revision of type material, and Paxillus adelphus and Paxillus olivellus are introduced as new Linnaean names. The often used name Paxillus filamentosus is rejected since it could not be applied to any of the new species. The three species are distinguished micromorphologically by spore size and shape. They are widely distributed in Europe, North Africa and western Asia; P. rubicundulus is rare, and all species have a limited host range.

Authors+Show Affiliations

Laboratoire Evolution et Diversité Biologique (EDB UMR5174), Université de Toulouse, CNRS, ENFA, UPS, 118 route de Narbonne, F-31062 Toulouse, France. Electronic address: patricia.jargeat@univ-tlse3.fr.Univ de Lille, INSERM, Institut Pasteur de Lille, EA 4483, F-59000 Lille, France.Laboratoire Evolution et Diversité Biologique (EDB UMR5174), Université de Toulouse, CNRS, ENFA, UPS, 118 route de Narbonne, F-31062 Toulouse, France.74 Avenue Pierre de Montesquiou, F-32000 Auch, France.Laboratoire Evolution et Diversité Biologique (EDB UMR5174), Université de Toulouse, CNRS, ENFA, UPS, 118 route de Narbonne, F-31062 Toulouse, France.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

27109368

Citation

Jargeat, Patricia, et al. "Paxillus Rubicundulus (Boletales, Paxillaceae) and Two New Alder-specific Ectomycorrhizal Species, Paxillus Olivellus and Paxillus Adelphus, From Europe and North Africa." Fungal Biology, vol. 120, no. 5, 2016, pp. 711-28.
Jargeat P, Moreau PA, Gryta H, et al. Paxillus rubicundulus (Boletales, Paxillaceae) and two new alder-specific ectomycorrhizal species, Paxillus olivellus and Paxillus adelphus, from Europe and North Africa. Fungal Biol. 2016;120(5):711-28.
Jargeat, P., Moreau, P. A., Gryta, H., Chaumeton, J. P., & Gardes, M. (2016). Paxillus rubicundulus (Boletales, Paxillaceae) and two new alder-specific ectomycorrhizal species, Paxillus olivellus and Paxillus adelphus, from Europe and North Africa. Fungal Biology, 120(5), 711-28. https://doi.org/10.1016/j.funbio.2016.02.008
Jargeat P, et al. Paxillus Rubicundulus (Boletales, Paxillaceae) and Two New Alder-specific Ectomycorrhizal Species, Paxillus Olivellus and Paxillus Adelphus, From Europe and North Africa. Fungal Biol. 2016;120(5):711-28. PubMed PMID: 27109368.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Paxillus rubicundulus (Boletales, Paxillaceae) and two new alder-specific ectomycorrhizal species, Paxillus olivellus and Paxillus adelphus, from Europe and North Africa. AU - Jargeat,Patricia, AU - Moreau,Pierre-Arthur, AU - Gryta,Hervé, AU - Chaumeton,Jean-Paul, AU - Gardes,Monique, Y1 - 2016/03/02/ PY - 2015/11/20/received PY - 2016/02/23/revised PY - 2016/02/24/accepted PY - 2016/4/26/entrez PY - 2016/4/26/pubmed PY - 2017/9/14/medline KW - Alnus KW - Ectomycorrhizal fungi KW - Molecular phylogeny KW - Taxonomy SP - 711 EP - 28 JF - Fungal biology JO - Fungal Biol VL - 120 IS - 5 N2 - Paxillus rubicundulus P.D. Orton has been shown to be a complex of at least three ectomycorrhizal taxa strictly associated with alders (Alnus) in Europe, P. rubicundulus s. str., and two undescribed clades. To assess the taxonomic status of these three clades and their phylogenetic relationships, phylogenetic analyses of two independent gene regions (ITS and gpd), combined with macro- and micromorphological comparisons of genetically identified specimens, were carried out. A total of 85 sequences were successfully obtained from basidiomata and alder mycorrhizae collected in France and Algeria and combined with GenBank and UNITE sequences. The phylogenetic results and estimates of genetic diversity confirmed that the three clades are distinct species, often found in sympatry. As a result, P. rubicundulus s. str. was redefined based on the revision of type material, and Paxillus adelphus and Paxillus olivellus are introduced as new Linnaean names. The often used name Paxillus filamentosus is rejected since it could not be applied to any of the new species. The three species are distinguished micromorphologically by spore size and shape. They are widely distributed in Europe, North Africa and western Asia; P. rubicundulus is rare, and all species have a limited host range. SN - 1878-6146 UR - https://www.unboundmedicine.com/medline/citation/27109368/Paxillus_rubicundulus__Boletales_Paxillaceae__and_two_new_alder_specific_ectomycorrhizal_species_Paxillus_olivellus_and_Paxillus_adelphus_from_Europe_and_North_Africa_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1878-6146(16)30002-2 DB - PRIME DP - Unbound Medicine ER -