Phylogeny and Systematics of Leptomyxid Amoebae (Amoebozoa, Tubulinea, Leptomyxida)

Alexey Smirnov (Corresponding author), Elena Nassonova, Stefan Geisen, Michael Bonkowski, Alexander Kudryavtsev, Cedric Berney, Anna Glotova, Natalya Bondarenko, Iva Dyková, Martin Mrva, Jose Fahrni, Jan Pawlowski

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Abstract

We describe four new species of Flabellula, Leptomyxa and Rhizamoeba and publish new SSU rRNA gene and actin gene sequences of leptomyxids. Using these data we provide the most comprehensive SSU phylogeny of leptomyxids to date. Based on the analyses of morphological data and results of the SSU rRNA gene phylogeny we suggest changes in the systematics of the order Leptomyxida (Amoebozoa: Lobosa: Tubulinea). We propose to merge the genera Flabellula and Paraflabellula (the genus Flabellula remains valid by priority rule). The genus Rhizamoeba is evidently polyphyletic in all phylogenetic trees; we suggest retaining the generic name Rhizamoeba for the group unifying R. saxonica, R.matisi n. sp. and R. polyura, the latter remains the type species of the genus Rhizamoeba. Based on molecular and morphological evidence we move all remaining Rhizamoeba species to the genus Leptomyxa. New family Rhizamoebidae is established here in order to avoid paraphyly of the family Leptomyxidae. With the suggested changes both molecular and morphological systems of the order Leptomyxida are now fully congruent to each other.
Original languageEnglish
Pages (from-to)220-252
Number of pages33
JournalProtist
Volume168
Issue number2
DOIs
Publication statusPublished - 2017

Keywords

  • Protists
  • amoeba
  • phylogeny
  • systematics
  • morphology
  • ultrastructure.
  • international

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    Smirnov, A., Nassonova, E., Geisen, S., Bonkowski, M., Kudryavtsev, A., Berney, C., Glotova, A., Bondarenko, N., Dyková, I., Mrva, M., Fahrni, J., & Pawlowski, J. (2017). Phylogeny and Systematics of Leptomyxid Amoebae (Amoebozoa, Tubulinea, Leptomyxida). Protist, 168(2), 220-252. https://doi.org/10.1016/j.protis.2016.10.006