Rhizamoeba neglecta n. sp. (Amoebozoa, Tubulinea) from the bottom sediments of freshwater Lake Leshevoe (Valamo Island, North-Western Russia), with notes on the phylogeny of the order Leptomyxida

A new species of Leptomyxida, named Rhizamoeba neglecta was found during studies of the amoeba fauna of the inner Lake Leshevoe located at Valamo archipelago (The Lake Ladoga, North-Western Russia). Light-microscopical and ultrastructural studies indicated that it represents a new species of Leptomy...

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Bibliographic Details
Published in:European journal of protistology 2009-11, Vol.45 (4), p.251-259
Main Authors: Smirnov, Alexey, Nassonova, Elena, Fahrni, Jose, Pawlowski, Jan
Format: Article
Language:English
Subjects:
Amoeba
Amoebozoa
Animals
Cluster Analysis
DNA, Protozoan - chemistry
DNA, Protozoan - genetics
DNA, Ribosomal - chemistry
DNA, Ribosomal - genetics
Fresh Water - parasitology
Freshwater
Genes, rRNA
Geologic Sediments - parasitology
Leptomyxida
Lobosea - classification
Lobosea - cytology
Lobosea - genetics
Lobosea - isolation & purification
Microscopy
Microscopy, Electron, Transmission
Molecular Sequence Data
Phylogeny
Rhizamoeba
RNA, Protozoan - genetics
RNA, Ribosomal, 18S - genetics
Russia
Sequence Analysis, DNA
Systematics
Ultrastructure
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Summary:A new species of Leptomyxida, named Rhizamoeba neglecta was found during studies of the amoeba fauna of the inner Lake Leshevoe located at Valamo archipelago (The Lake Ladoga, North-Western Russia). Light-microscopical and ultrastructural studies indicated that it represents a new species of Leptomyxida. The partial 18S rDNA sequence of this amoeba is very similar to that of Leptomyxa reticulata.. These organisms, however, are very different in LM morphology and biology. Organisms assigned to the genus Rhizamoeba do not form a single clade in the 18S rDNA tree. This may indicate that the genus is an artificial grouping or that a number of studied strains were misidentified. The phylogeny and the systematics of leptomyxids require further investigation.
ISSN:0932-4739
1618-0429
DOI:10.1016/j.ejop.2009.04.002