Morphology and small subunit rRNA gene sequence of Uronemita parabinucleata n. sp. (Ciliophora,Uronematidae), with an improved generic diagnosis |
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| Institution: | 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. Department of Biological and Environmental Sciences, Troy University, Troy, AL 36082, USA;2. College of Marine Science, University of South Florida, St. Petersburg, FL 33701, USA;1. Division of Life Sciences, Korea Polar Research Institute, Incheon 21990, South Korea;2. Department of Biological Sciences, Inha University, Incheon 22212, South Korea;3. Institute of Life Science & Natural Resources, Korea University, Seoul 02841, South Korea;4. Department of Biology, Gangneung-Wonju National University, Gangneung 25457, South Korea;5. Consulting Engineering Office for Ecology, Radetzkystrasse 10, 5020 Salzburg, Austria;1. The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China;2. Marine College, Shandong University, Weihai 264209, China;3. Department of Biological Sciences, University of Ulsan, Ulsan 44610, Republic of Korea;4. Department of Life Sciences, Natural History Museum, London SW7 5BD, UK |
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| Abstract: | The morphology and infraciliature of a new species, Uronemita parabinucleata n. sp., isolated from intertidal sediments in a coastal region in northern China, were investigated using live observation and silver impregnation methods. The new species is characterized by an in vivo body size of about 20–50 × 10–25 μm, 22 or 23 somatic kineties, two macronuclear nodules, and one caudal cilium. Its small subunit ribosomal RNA gene (SSU rDNA) was sequenced and compared with those of other Uronemita species to reveal nucleotide differences. Phylogenetic analyses indicated that Uronemita is monophyletic and that the new species clusters with its congener Uronemita filificum, with full support provided by both Bayesian inference and maximum likelihood algorithms. Based on previous studies and the present study, an improved diagnosis of the genus Uronemita is supplied, which has been absent since the establishment of this genus. A key to the Uronemita species is also provided. |
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| Keywords: | Infraciliature Phylogeny Scuticociliates SSU rDNA |
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