Phylogenetic position of the enigmatic myxomycete genus Kelleromyxa revealed by SSU rDNA sequences |
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Authors: | Daria A Erastova Mikhail V Okun Anna Maria Fiore-Donno Yuri K Novozhilov Martin Schnittler |
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Institution: | 1. Laboratory of Systematics and Geography of Fungi, Komarov Botanical Institute of the Russian Academy of Sciences, Prof. Popov Street 2, 197376, St. Petersburg, Russia 3. CIBIV - Center for Integrative Bioinformatics in Vienna, Max F. Perutz Laboratories (MFPL), University of Vienna, Medical University of Vienna, Campus Vienna Biocenter 5 (VBC5), 1030, Vienna, Austria 2. Institute of Botany and Landscape Ecology, Ernst Moritz Arndt University Greifswald, Grimmer Str. 88, 17487, Greifswald, Germany
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Abstract: | The coprophilous myxomycete Kelleromyxa fimicola (Dearn. & Bisby) Eliasson was first described in 1929 as Licea fimicola Dearn. & Bisby. Based on the superficial resemblance of its sporocarps to those of Licea biforis, the species was placed within the Liceales, an order assigned by molecular phylogenies to the bright-spored clade of myxomycetes. However, detailed studies of the morphology and life cycle of K. fimicola revealed several characters of the dark-spored order Physarales. To elucidate the systematic position of Kelleromyxa, we obtained three partial and one complete sequence of the SSU rDNA, which demonstrated a clear relationship of K. fimicola to the order Physarales. However, the obtained sequences are not closely related to any of the two known families of Physarales, supporting the erection of a monotypic family for this species. Along with morphological observations, our data support the exclusion of K. fimicola from the order Liceales and placement among the order Physarales within the dark-spored clade of myxomycetes. |
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