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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/5677

Title: Trichopodiella faurei n. sp. (ciliophora, phyllopharyngea, cyrtophoria): morphological description and phylogenetic analyses based on SSU rRNA and group I intron sequences
Authors: Gong, Jun
Gao, Shan
Roberts, David mcl.
Al-rasheid, Khaled A.S.
Song, Weibo
Keywords: 18S rRNA
Marine ciliate
Issue Date: 2008
Publisher: Society of Protozoologists
Citation: The Journal of eukaryotic microbiology: 55(6); 492–500
Abstract: A new marine cyrtophorian ciliate Trichopodiella faurei n. sp., which belongs to the order Dysteriida, family Hartmannulidae, was investigated at the morphological and molecular levels. A combination of morphological features of the organism including the oval body shape, 2–3 contractile vacuoles, 22–28 nematodesmal rods in the cytopharyngeal basket, and 31–39 somatic kineties, distinguishes it from all other known congeners. In reconstructed small subunit (SSU) rRNA phylogenies, T. faurei groups with Isochona, a representative genus of the subclass Chonotrichia. The similarity of the infraciliature between hartmannulids and several chonotrichian examples also suggests that these taxa should be closely related. A new S943 intron belonging to group IC1 was identified in the SSU rRNA gene of this species. This intron is phylogenetically related to the S891 introns previously found in the suctorians Acineta sp. and Tokophrya lemnarum, and their internal guide sequences share four nucleotides, indicating that these introns were vertically inherited from a common phyllopharyngean ancestor and that reverse splicing might have been involved in the transposition.
URI: http://hdl.handle.net/123456789/5677
ISSN: 1066-5234
Appears in Collections:College of Science

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