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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Acknowledgments
We wish to thank Anja Klahr for assistance with the molecular work at Greifswald. In addition, M.O. owes thanks to several colleagues of the Center for Integrative Bioinformatics in Vienna who helped to find the appropriate approach for phylogenetic analyses. We are grateful to Fionn Clissmann for comments, discussion during manuscript preparation, and language correction. Molecular work was supported by grants from the Russian Foundation for Basic Research (RFBR 10–04–00536a, 12-04-33018 mol_a_ved).
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Erastova, D.A., Okun, M.V., Fiore-Donno, A.M. et al. Phylogenetic position of the enigmatic myxomycete genus Kelleromyxa revealed by SSU rDNA sequences. Mycol Progress 12, 599–608 (2013). https://doi.org/10.1007/s11557-013-0892-8
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DOI: https://doi.org/10.1007/s11557-013-0892-8