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What Morphology and Molecules Tell Us about the Evolution of Oligotrichea (Alveolata, Ciliophora)

Publication date: 2014

Acta Protozoologica, 2014, Volume 53, Issue 1, pp. 77 - 90

https://doi.org/10.4467/16890027AP.14.008.1445

Authors

,
Sabine Agatha
Department of Biosciences, University of Salzburg, Salzburg, Austria
Department of Organismic Biology, University of Salzburg, Salzburg, Austria
All publications →
Michaela C. Strüder-Kypke
Department of Molecular and Cellular Biology, University of Guelph, Guelph, Canada
All publications →

Titles

What Morphology and Molecules Tell Us about the Evolution of Oligotrichea (Alveolata, Ciliophora)

Abstract

The evolution of the dominant marine plankton ciliates, the oligotrichids and choreotrichids, is analysed for morphologic and genetic convergences and apomorphies based on literature and our own data. These findings have taxonomic implications. Within the oligotrichid genus Parallelostrombidium two subgenera, Parallelostrombidium Agatha, 2004 nov. stat. and Asymptokinetum nov. subgen., are established, using the courses of the ventral and girdle kineties as a distinguishing feature. Likewise, a different arrangement of extrusome attachment sites is used for a split of the oligotrichid genus Novistrombidium into the subgenera Novistrombidium Song and Bradbury, 1998 nov. stat. and Propecingulum nov. subgen.; Novistrombidium (Propecingulum) ioanum (Lynn and Gilron, 1993) nov. comb. and Novistrombidium (Propecingulum) platum (Song and Packroff, 1997) nov. comb. are affiliated. Based on discrepancies in the somatic ciliary pattern and the presence of conspicuous argyrophilic inclusions, the aloricate choreotrichid species Pelagostrobilidium kimae nov. spec. is distinguished from P. conicum. The diagnosis for the tintinnid family Eutintinnidae Bachy et al., 2012 is improved by including cell features. The co-operation of taxonomists and molecular biologists is strongly recommended to prevent misinterpretations of gene trees due to incorrectly identified species and for better species circumscriptions.

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Information

Information: Acta Protozoologica, 2014, Volume 53, Issue 1, pp. 77 - 90

Article type: Original article

Authors

Department of Biosciences, University of Salzburg, Salzburg, Austria

Department of Organismic Biology, University of Salzburg, Salzburg, Austria

Department of Molecular and Cellular Biology, University of Guelph, Guelph, Canada

Published at: 2014

Article status: Open

Licence: None

Percentage share of authors:

Sabine Agatha (Author) - 50%
Michaela C. Strüder-Kypke (Author) - 50%

Article corrections:

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Publication languages:

English