Morphology,morphogenesis and molecular phylogeny of Lamtostyla granulifera sinensis subsp. nov. (Ciliophora,Hypotrichia) from a wetland in China |
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| Institution: | 1. College of Life Sciences, Northwest University, Xi''an 710069, China;2. Xijing University, Xi''an 710123, China;1. Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China;2. Key Laboratory of Mariculture (OUC), Ministry of Education, Qingdao 266003, China;3. Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;4. Laoshan Laboratory, Qingdao 266237, China;1. Faculty of Science, Hokkaido University, North 10, West 8, Sapporo 060-0810 Japan;2. Senckenberg am Meer, German Centre for Marine Biodiversity Research, Südstrand 44, D-26382 Wilhelmshaven, Germany;3. University of Technology Sydney, School of Life Sciences, 15 Broadway, Ultimo, NSW 2007, Australia;4. Garvan-Weizmann Centre for Cellular Genomics, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia;5. Institute for International Collaboration, Hokkaido University, Sapporo 060-0808 Japan |
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| Abstract: | The morphology, morphogenesis and molecular phylogeny of a hypotrichous ciliate, Lamtostyla granulifera sinensis subsp. nov., isolated from northern China, were investigated. This population appeared highly similar in morphology to L. granulifera Foissner, 1997. However, on detailed investigation some non-overlapping features were identified, i.e., the body shape and the arrangement of the cortical granules. These differences suggested the separation at subspecies level. Furthermore, the morphogenesis of the new subspecies is described, which is characterized by: (1) the posterior part of the parental adoral zone of membranelles is renewed; (2) the amphisiellid median cirral row is formed from two anlagen; and (3) the frontoventral-transverse cirral anlagen II to VI generate one transverse cirrus each. Phylogenetic analyses based on SSU rDNA sequence data show that Lamtostyla species are scattered in different clades. The monophyly of the genus Lamtostyla is also rejected by the AU test in this study. |
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| Keywords: | Morphology Ontogenesis SSU rDNA Subspecies |
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