Morphology and phylogeny of Bryophryoides ocellatus n. g., n. sp. (Ciliophora,Colpodea) from in situ soil percolates of Idaho,U.S.A. |
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| Affiliation: | 1. Department of Biological Sciences, Boise State University MS-1515, 1910 University Avenue, Boise, ID 83725-1515, USA;2. Department of Zoology, Comenius University, Mlynská dolina B-1, Bratislava SK-84215, Slovak Republic;1. Department of Pathology and Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého 1-3, 612 42 Brno, Czech Republic;2. Central European Institute of Technology, University of Veterinary and Pharmaceutical Sciences, Palackého 1-3, 612 42 Brno, Czech Republic;3. Department of Bacteriology, Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic;4. Department of Biology and Wildlife Diseases, University of Veterinary and Pharmaceutical Sciences, Palackého 1-3, 612 42 Brno, Czech Republic;5. Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Brno and Studenec, Czech Republic;1. Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China;2. Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;1. Kastamonu University, Faculty of Science and Art, Biology Department, 37100 Kuzeykent, Kastamonu, Turkey;2. Ookusa Animal Clinic, Matsue, Shimane 690-0032, Japan;1. Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China;2. The Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biology and Engineering, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China;3. Zoology Department, King Saud University, Riyadh 11451, Saudi Arabia;4. Laboratory of Protozoology, Key Laboratory of Ecology and Environment Science in Guangdong Higher Education, College of Life Science, South China Normal University, Guangzhou 510631, China;1. The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, PR China;2. School of Life Sciences, SunYat-Sen (Zhongshan) University, Guangzhou 510275, PR China;3. Department of Life Sciences, Natural History Museum, London SW7 5BD, UK |
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| Abstract: | We describe the morphology and 18S rDNA phylogeny of Bryophryoides ocellatus n. g., n. sp., a bryophryid ciliate inhabiting in situ soil percolates from Idaho, U.S.A. The new genus is distinguished from other bryophryid genera by a combination of the following features: (1) kreyellid (irregularly meshed) silverline pattern, (2) polymorphic adoral organelles in the preoral suture, (3) absence of vestibular kineties. In phylogenetic analyses, Bryophryoides ocellatus is most closely related to Bryophrya gemmea. The 18S rDNA sequence pairwise distance of 2% between these genera, while similar to that between many colpodidan species, exceeds that between some colpodidan genera (e.g. Mykophagophrys and Pseudoplatyophrya, 1.1%), further supporting establishment of the new genus. Topology hypothesis testing strongly supports the monophyly of the Colpodida including the bryophryids. Despite weak nodal support, tests of topology constraints narrowly reject the non-monophyly of the sequenced Bryophryidae (Bryophrya + Bryophryoides + Notoxoma). Likewise, the monophyletic origin of the sequenced Bryophryidae is indicated in the phylogenetic networks though with low support. |
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| Keywords: | Bryophryidae Cortical alveoli Silverline pattern Single-cell PCR 18S rRNA gene Vestibulum |
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