Phylogenetic position of the enigmatic myxomycete genus Kelleromyxa revealed by SSU rDNA sequences

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• 作者：Daria A. Erastova (1)
  Mikhail V. Okun (1) (3)
  Anna Maria Fiore-Donno (2)
  Yuri K. Novozhilov (1)
  Martin Schnittler (2)
  
• 关键词：Molecular phylogeny ; Amoebozoa ; Myxogastria ; plasmodial slime molds ; SSU rRNA gene
• 刊名：Mycological Progress
• 出版年：2013
• 出版时间：August 2013
• 年：2013
• 卷：12
• 期：3
• 页码：599-608
• 全文大小：555KB
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• 作者单位：Daria A. Erastova (1)
  Mikhail V. Okun (1) (3)
  Anna Maria Fiore-Donno (2)
  Yuri K. Novozhilov (1)
  Martin Schnittler (2)
  
  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
  

文摘

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.