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Molecular Characterization and Revised Systematics of Microdiaphanosoma arcuatum (Ciliophora, Colpodea)
Author(s) -
QUINTELAALONSO PABLO,
NITSCHE FRANK,
ARNDT HARTMUT
Publication year - 2011
Publication title -
journal of eukaryotic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 1066-5234
DOI - 10.1111/j.1550-7408.2010.00527.x
Subject(s) - biology , ciliate , genbank , phylogenetic tree , systematics , molecular phylogenetics , sister group , genus , evolutionary biology , zoology , sister , taxonomy (biology) , ecology , gene , genetics , clade , sociology , anthropology
ABSTRACT.Microdiaphanosoma arcuatum Wenzel, 1953 is a world‐wide distributed ciliate, recorded mainly in soil samples, which we have also identified in ground water samples from South Africa. This ciliate has been frequently overlooked or not determined due to its small size,∼12 μm. The genus Microdiaphanosoma is nowadays included in the class Colpodea, order Bryometopida, family Kreyellidae. The first complete small subunit (SSU) rDNA gene sequence of this ciliate was obtained from a South African isolate. Phylogenetic analysis including available SSU rDNA sequences from another Colpodea species in the GenBank strongly supported the position of M. arcuatum within the order Cyrtolophosidida instead of the order Bryometopida. The analysis also suggested a sister relationship between this species and species from the family Cyrtolophosididae.