A new contribution to the taxonomy and phylogeny of the ciliate genus Spirostomum(Alveolata,Ciliophora,Heterotrichea),with comprehensive descriptions of two species from wetlands in China
作者机构：Institute of Evolution&Marine Biodiversityand College of FisheriesOcean University of ChinaQingdao266003China School of Marine SciencesNingbo UniversityNingbo315800China Weishan Fishery Development Service CenterJining277600China Department of ZoologyFaculty of ScienceCharles UniversityPrague12843Czech Republic
出 版 物：《Water Biology and Security》 (水生生物与安全（英文）)
年 卷 期：2022年第1卷第2期
页 面：23-37页
学科分类：0710[理学-生物学] 1203[管理学-农林经济管理] 0908[农学-水产] 07[理学] 0707[理学-海洋科学] 0905[农学-畜牧学] 0906[农学-兽医学] 0903[农学-农业资源与环境] 0815[工学-水利工程] 0836[工学-生物工程] 071002[理学-动物学] 0713[理学-生态学]
基 金：the National Natural Science Foundation of China(No.31970398 and 32030015) a Czech Science Foundation grant(No.19-19297S)
主 题：Conjugation Morphogenesis Morphology Phylogeny Ribosomal RNA
摘 要：Species of the ciliate genus Spirostomum Ehrenberg,1834 are distributed worldwide and have a research history spanning more than two ***,species delimitation and phylogenetic relationships within this genus are still uncertain due to the paucity of stable morphologic characters for species separation and the unavailability of accompanying morphological data for most molecular sequences in public *** the present study,*** Shigenaka,1959(three populations)and ***(Müller,1786)Delphy,1939(one population)were investigated using morphological and molecular methods for the first time in *** morphological data for the two species were documented,and improved diagnoses were supplied based on a combination of previous studies and the current *** should be highlighted that there were three different atypical morphotypes identified in a Ningbo population of *** which may represent various stages in conjugative *** phylogenies based on 18S,ITS1-5.8S-ITS2,and 28S rRNA gene sequences show that the genus Spirostomum is monophyletic,however,the internal relationships inferred from different genes were poorly resolved but suggest that the species with a moniliform macronucleus comprise an early-diverging clade within this ***,the global distribution of Spirostomum is summarized based on previous and present studies.
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