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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 65, Issue Pt_9

Reconsideration of the ‘well-known’ hypotrichous ciliate (Shi , 2002) Gupta , 2003 (Ciliophora, Sporadotrichida), with notes on its morphology, morphogenesis and molecular phylogeny Free

Abstract

The oxytrichid species ( ) , isolated from a tributary of the Yangtze River in the Mudong district of Chongqing, southern China, was reinvestigated with emphasis on its morphology, morphogenesis and small-subunit (SSU) rDNA-based phylogeny. Compared with three previously described populations, the Mudong population of is characterized by its large body size, 170–295 × 65–110 μm , and by having a variable number of right marginal rows, either two or three. Likewise, the number of right marginal rows anlagen (RMA) is also variable, i.e. usually two, but sometimes several small extra anlagen that give rise to the formation of the third row, are present to the left of the RMAs. We posit that the Mudong population is an intermediate form between the three previously described populations. Phylogenetic analyses based on the SSU rDNA sequence data show that all populations of cluster with the type species of the genus, , in a clade nested within the Oxytrichidae.

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2015-09-01
2024-04-24
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Reconsideration of the ‘well-known’ hypotrichous ciliate Pleurotricha curdsi (Shi et al., 2002) Gupta et al., 2003 (Ciliophora, Sporadotrichida), with notes on its morphology, morphogenesis and molecular phylogeny
Int J Syst Evol Microbiol 65, 3216 (2015); https://doi.org/10.1099/ijs.0.000377
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