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New contributions to the phylogeny of the ciliate class Heterotrichea(Protista,Ciliophora):analyses at family-genus level and new evolutionary hypotheses

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Science China(Life Sciences) 2021年第4期64卷 606-620页

作者： Yong Chi Xiangrui Chen Yuqing Li Chundi Wang Tengteng Zhang Alex Ayoub alan warren Weibo Song Yuanyuan Wang Instiue of Evoluion&Marine Biodiversity and College of Fisheries Ocean University of ChinaQingdao 266003China School of Marine Sciences Ningbo University Ningbo 315211China Department of Pathology University of MichiganAnn Arbor M148109USA Deparmen of Life Sciences Narural Histony MuseumLondon SW75BDUK Laboratory for Marine Biology&Biotechnologr.Qingdao National Laboratory for Marine Science and TechnologyQingdao 266003China College of Marine Life Sciences Ocean Universiy of ChinaQingdao 266003.China

Heterotrichous ciliates play an important role in aquatic ecosystem energy flow processes and many are model organisms for research in cytology,regenerative biology,and *** the present study,we combine both morphological and molecular data to infer phylogenetic relationships at family-genus level and propose new evolutionary hypotheses for the class *** main results include:(1)96 new ribosomal DNA sequences from 36 populations,representing eight families and 13 genera,including three poorly annotated genera,Folliculinopsis,Ampullofolliculina and Linostomella;(2)the earliest-branching families are Spirostomidae in single-gene trees and Peritromidae in the concatenated tree,but the family Peritromidae probably represents the basal lineage based on its possession of many"primitive"morphological characters;(3)some findings in molecular trees are not supported by morphological evidence,such as the family Blepharismidae is one of the most recent branches and the relationship between Fabreidae and Folliculinidae is very close;(4)the systematic positions of Condylostomatidae,Climacostomidae,and Gruberiidae remain uncertain based either on morphological or molecular data;and(5)the monophyly of each genus included in the present study is supported by the molecular phylogenetic trees,except for Blepharisma in the SSU r DNA tree and Folliculina in the ITS1-5.8 S-ITS2 tree.

关键词： evolutionary hypothesis molecular cladogram morphological cladogram multi-gene systematic relationship

On four epibiotic peritrichous ciliates(Protozoa,Ciliophora)found in Lake Weishan Wetland:morphological and molecular data support the establishment of a new genus,Parapiosoma ***.,and two new species

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Marine Life Science & Technology 2023年第3期5卷 337-358页

作者： Tong Wu Ting Cheng Xiao Cao Yaohan Jiang Khaled A.S.Al-Rasheid alan warren Zhe Wang Borong Lu Marine College Shandong UniversityWeihai 264209China Institute of Evolution and Marine Biodiversity Ocean University of ChinaQingdao 266003China Zoology Department College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Department of Life Sciences Natural History MuseumLondon SW75BDUK Weishan Fishery Development Service Center Jining 277600China

During a study on the diversity of ciliated protists in Lake Weishan Wetland,the largest wetland in northern China,four epibiotic sessilid peritrichs were isolated from aquatic host *** of them,i.e.,Epistylis cambari Kellicott,1885 and Epistylis lwof Fauré-Fremiet,1943,were known species whereas the other two,i.e.,Parapiosoma typicum ***.,*** Orborhabdostyla gracilis ***.,are new to *** new genus Parapiosoma *** characterized by its branched non-contractile stalk,everted peristomial lip,obconical macronucleus and transverse *** species are assigned to the new genus,namely Parapiosoma typicum *** Parapiosoma gasterostei(Fauré-Fremiet,1905)***,*** *** recognized by its goblet-shaped zooids,single-layered peristomial lip,dichotomously branched stalk,and infundibular polykinety 3(P3)containing three equal-length *** gracilis *** characterized by its slender zooid,curved macronucleus,and three equal-length rows in infundibular *** diagnoses and redescriptions of *** and *** are provided including,for the frst time,data on the ciliature of *** analyses based on SSU rDNA,ITS1-5.8S rDNA-ITS2,and LSU rDNA sequence data strongly support the assertion that the family Epistylididae comprises morphospecies with diferent evolutionary lineages and indicate that Parapiosoma *** represent a new taxon at family level.

关键词： Ectoparasite Parapiosoma gen.nov. Sessilid peritrichs Systematics

New considerations on the phylogeny of Sessilida(Protista:Ciliophora:Peritrichia)based on multiple-gene information,with emphasis on colonial taxa

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Marine Life Science & Technology 2022年第4期4卷 569-583页

作者： Zhe Wang Xiaoting Feng Lifang Li Khaled A.S.Al-Rasheid alan warren Chundi Wang Zemao Gu Marine College Shandong UniversityWeihai264209China College of Fisheries/Shuangshui ShuanglüInstitute Huazhong Agricultural UniversityWuhan430070China Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention Wuhan430070China Department of Zoology College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia Department of Life Sciences Natural History MuseumLondonSW75BDUK

The subclass Peritrichia,containing two orders Sessilida and Mobilida,is a major group of ciliates with worldwide distribution and high species *** studies have investigated the phylogeny of peritrichs;however,the evolutionary relationships and classification of some families and genera within the Sessilida remain *** the present study,we isolated and identified 22 peritrich populations representing four families and six genera and obtained 64 rDNA sequences to perform phylogenetic analyses and assess their systematic *** character reconstruction was also carried out to infer evolutionary routes within the *** results indicate:(1)family Vaginicolidae is monophyletic and acquisition of the typical peritrich lorica represents a single evolutionary divergence;(2)core epistylidids evolved from a Zoothamnium-like ancestor and experienced spasmoneme loss during evolution;(3)Campanella clusters with species in the basal clade and shows stable morphological differences with other epistylidids,supporting its assignment to a separate family;(4)the structure of the peristomial lip may be a genus-level character rather than a diagnostic character for discriminating Epistylididae and Operculariidae,thus a redefinition of Operculariidae should be carried out when more species have been investigated;(5)some characters,such as lifestyle(solitary or colonial),spasmoneme and living habit(sessile or free-swimming),evolved repeatedly among sessilids indicating that species with non-contractile stalks or that are free-swimming have multiple evolutionary routes and might derive from any sessilid lineage without a *** close phylogenetic relationships of some morphologically distinct sessilids imply that the diagnoses of some genera and families should be improved.

关键词： Ancestral state reconstruction Ciliates Morphology Peritrichs Phylogenetic analyses

Tolerance of ciliated protozoan Paramecium bursaria (Protozoa, Ciliophora) to ammonia and nitrites

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Chinese Journal of Oceanology and Limnology 2005年第3期23卷 349-353页

作者：许恒龙宋微波路璐 warren alan The Key Laboratory of Mariculture of the Education Ministry Ocean University of China Qingdao 266003 China Department of Biology Liaocheng University Liaocheng 252059 China Department of Zoology Natural History Museum Cromwell Road London SW7 5BD UK China

The tolerance to ammonia and nitrites in freshwater ciliate Paramecium bursaria was measured in a conventional open system. The ciliate was exposed to different concentrations of ammonia and nitrites for 2h and 12h in order to determine the lethal concentrations. Linear regression analysis revealed that the 2h-LC50 value for ammonia was 95.94 mg/L and for nitrite 27.35 mg/L using probit scale method (with 95% confidence intervals). There was a linear correlation between the mortality probit scale and logarithmic concentration of ammonia which fit by a regression equation y=7.32x–9.51 (R2=0.98; y, mortality probit scale; x, logarithmic concentration of ammonia), by which 2 h–LC50 value for ammonia was found to be 95.50 mg/L. A linear correla- tion between mortality probit scales and logarithmic concentration of nitrite is also followed the regression equa- tion y=2.86x+0.89 (R2=0.95; y, mortality probit scale; x, logarithmic concentration of nitrite). The regression analysis of toxicity curves showed that the linear correlation between exposed time of ammonia-N LC50 value and ammonia-N LC50 value followed the regression equation y=2 862.85e-0.08x (R2=0.95; y, duration of exposure to LC50 value; x, LC50 value), and that between exposed time of nitrite-N LC50 value and nitrite-N LC50 value followed the regression equation y = 127.15e-0.13x (R2=0.91; y, exposed time of LC50 value; x, LC50 value). The results demonstrate that the tolerance to ammonia in P. bursaria is considerably higher than that of the larvae or juveniles of some metozoa, e.g. cultured prawns and oysters. In addition, ciliates, as bacterial predators, are likely to play a positive role in maintaining and improving water quality in aquatic environments with high-level ammonium, such as sewage treatment systems.

关键词： toxicology ecotoxicology toxicity ammonia nitrite ciliate protozoa Paramecium bursaria

Reconsideration of the phylogenetic positions of three stichotrichous genera Holosticha,Anteholosticha and Pseudokeronopsis (Spirotrichea:Ciliophora) inferred from complete SSU rRNA gene sequences

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Progress in Natural Science:Materials International 2009年第6期19卷 769-773页

作者： Mann Kyoon Shin alan warren Khaled A.S.Al-Rasheid Abdulaziz A.Al-Khedhairy Saud Al-Arifi Department of Biology University of Ulsan Department of Zoology The Natural History Museum 3. Zoology DepartmentKing Saud University

The small subunit rRNA (SSU rRNA) gene for six marine stichotrichs, Pseudokeronopsis carnea, P. flava, Holosticha heterofoissneri, H. diademata, H. bradburyae and Anteholosticha manca, was sequenced and characterized. Using this molecular information, the phylogenetic positions of three related genera, Pseudokeronopsis, Holosticha and Anteholosticha were determined. The results indicate that the family Urostylidae is clearly separated from the family Pseudokeronopsidae. The present phylogenetic analyses unambiguously placed Pseudokeronopsis close to Holosticha, and support the conclusion that these genera should be regarded as the members of the order Urostylidae within the stichotrich clade. Furthermore, the results of this study also support the monophyly of the genus Pseud-okeronopsis, the redefinition of Holosticha s. str. and the placement of Anteholosticha in a clade separate from Holosticha.

关键词： Urostylidae Clade Evolution Taxonomy

海洋固着缘毛类纤毛虫——聚缩虫两新种(原生动物,纤毛门)

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动物分类学报 2005年第4期30卷 702-705页

作者：季道德宋微波 alan warren 中国海洋大学教育部海水养殖重点实验室英国自然历史博物馆动物学部

报道了采自青岛沿海的聚缩虫两新种,倪氏聚缩虫Zoothamnium ***.和王氏聚缩虫***.。两者分别以下列组合的性状区别于所有已知种:倪氏聚缩虫为双层口围缘、交替式分枝、69～88环的总银线数以及口区小膜3由3条平行等长的动基列组成。王氏... 详细信息

报道了采自青岛沿海的聚缩虫两新种,倪氏聚缩虫Zoothamnium ***.和王氏聚缩虫***.。两者分别以下列组合的性状区别于所有已知种:倪氏聚缩虫为双层口围缘、交替式分枝、69～88环的总银线数以及口区小膜3由3条平行等长的动基列组成。王氏聚缩虫为单层口围缘、交替式分枝、108～135环的总银线数以及口区小膜3由两条错位排列的动基列组成。

关键词：纤毛虫缘毛目聚缩虫新种纤毛图式

Biodiversity of freshwater ciliates(Protista,Ciliophora)in the Lake Weishan Wetland,China:the state of the

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Marine Life Science & Technology 2022年第4期4卷 429-451页

作者： Zhe Wang Yong Chi Tao Li Wenya Song Yunfeng Wang Tong Wu Gongaote Zhang Yujie Liu Honggang Ma Weibo Song Khaled A.S.Al-Rasheid alan warren Borong Lu Institute of Evolution and Marine Biodiversity Ocean University of ChinaQingdao 266003China Marine College Shandong UniversityWeihai 264209China Laoshan Laboratory Qingdao 266237China Zoology Department College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Department of Life Sciences Natural History MuseumLondon SW75BDUK

Ciliates are core components of the structure of and function of aquatic microbial food *** play an essential role in the energy flow and material circulation within aquatic ***,studies on the taxonomy and biodiversity of freshwater ciliates,especially those in wetlands in China are *** address this issue,a project to investigate the freshwater ciliates of the Lake Weishan Wetland,Shandong Province,commenced in ***,we summarize our findings to date on the diversity of ciliates.A total of 187 ciliate species have been found,94 of which are identified to species-level,87 to genus-level,and six to *** species show a high morphological diversity and represent five classes,i.e.,Heterotrichea,Litostomatea,Prostomatea,Oligohymenophorea,and *** largest number of species documented are oligohymenophoreans.A comprehensive database of these ciliates,including morphological data,gene sequences,microscope slide specimens and a DNA bank,has been *** the present study,we provide an annotated checklist of retrieved ciliates as well as information on the sequences of published *** of these species are recorded in China for the first time and more than 20%are tentatively identified as new to ***,an investigation of environmental DNA revealed that the ciliate species diversity in Lake Weishan Wetland is higher than previously supposed.

关键词： Environmental DNA Protozoa Species diversity Taxonomy

海洋尾丝虫无性生殖期间口器发生的再研究(英文)

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动物学报 2004年第5期50卷 823-827页

作者：马宏伟宋微波龚骏 alan warren 中国海洋大学原生动物学研究室山东青岛266003 DepartmentofZoology TheNaturalHistoryMuseumCromwellRoadLondonSW75BDUK

利用蛋白银技术研究了海洋纤毛虫—海洋尾丝虫无性生殖期间的口器发生过程。结果显示其口器发生与已知的同属种类具相似的过程和形式。其口器发生及演化的基本模式可表示如下 :后仔虫的小膜 1、小膜 2来源于老口侧膜后段的增殖 ;后仔虫... 详细信息

利用蛋白银技术研究了海洋纤毛虫—海洋尾丝虫无性生殖期间的口器发生过程。结果显示其口器发生与已知的同属种类具相似的过程和形式。其口器发生及演化的基本模式可表示如下 :后仔虫的小膜 1、小膜 2来源于老口侧膜后段的增殖 ;后仔虫的口侧膜及盾片来源于老口侧膜前段的增殖 ;后仔虫的小膜 3来自于老口区盾片的增殖 ;前仔虫的口侧膜及盾片来源于老口侧膜 ,三片小膜在口器发生过程中被保留。

关键词：口器发生海洋尾丝虫无性生殖系统关系属种海洋纤毛虫动物学增殖保留蛋白

西藏墨脱原始森林新种——宋氏异列虫(Anteholosticha songi ***.)的形态学与分子系统学研究

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西藏墨脱原始森林新种——宋氏异列虫(Anteholosticha songi ***....