Ontogenesis and systematic position of a new hypotrichous ciliate,Chaetospira sinica ***.,with an improved diagnosis of the poorly defined family Chaetospiridae Jankowski,1985(Protozoa,Ciliophora,Hypotrichia)
作者机构：Laboratory of Protozoological Biodiversity and Evolution in WetlandCollege of Life SciencesShaanxi Normal UniversityXi’an710119China Institute of Evolution&Marine BiodiversityOcean University of ChinaQingdao266003China Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of SciencesInstitute of HydrobiologyChinese Academy of SciencesWuhan430072China Zoology DepartmentCollege of ScienceKing Saud UniversityRiyadh11451Saudi Arabia
出 版 物：《Marine Life Science & Technology》 (海洋生命科学与技术（英文）)
年 卷 期：2022年第4卷第4期
页 面：513-526页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学]
基 金：supported by the National Natural Science Foundation of China(No.32030015,32070428 31900319) the National Key Research and Development Program of China(2018YFD0900701) the King Saud University,Saudi Arabia(No.RSP2022R7)
主 题：18S rRNA gene Morphogenesis Phylogeny Spirofilidae-Stichotricha
摘 要：Ciliates are unique single-celled organisms that play important roles in ecological,environmental,evolutionary,and ontogenetic *** the present study,phylogenetic analyses based on 18S rRNA gene sequence data reveal that Chaetospira sinica *** with Stichotricha aculeata with strong to full support(97%ML,1.00 BI),but is not closely related to members of Spirofilidae Gelei,1929 to which Chaetospira and Stichotricha have previously been *** analyses,together with morphological and morphogenetic data from Chaetospira sinica ***.,support the validity of family Chaetospiridae Jankowski,*** and Stichotricha are here assigned to the family Chaetospiridae,the improved diagnosis of which is as follows:non-dorsomarginalian Hypotrichia with flask-shaped body;oral region extending along narrow anterior neck region;lorica usually present;two ventral and two marginal cirral rows,all distinctly spiraled or obliquely curved;pretransverse and transverse cirri *** basic morphogenetic features in *** *** be summarized as:(1)the oral primordium for the opisthe develops de novo and the parental adoral zone is completely retained by the proter;(2)all ventral cirral anlagen and marginal anlagen developed intrakinetally;(3)three dorsal kineties anlagen formed intrakinetally in each daughter cell;and(4)macronuclear nodules fuse into a single *** cells were also isolated and their morphologic and molecular data are provided.
维普期刊数据库