Further insights into the phylogeny of two ciliate classes Nassophorea and Prostomatea (Protista, Ciliophora)
Zhang, Qianqian1,2; Yi, Zhenzhen3; Fan, Xinpeng4; Warren, Alan5; Gong, Jun1,3; Song, Weibo2; Gong, J (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China. jgong@yic.ac.cn; wsong@ouc.edu.cn
Source PublicationMOLECULAR PHYLOGENETICS AND EVOLUTION
ISSN1055-7903
2014
Volume70Pages:162-170
KeywordCiliophora Phylogeny 18s Rrna 28s Rrna Nassophorea Prostomatea
Contribution Rank[Zhang, Qianqian; Gong, Jun] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Zhang, Qianqian; Song, Weibo] Ocean Univ China, Inst Evolut & Marine Biodivers, Qingdao 266003, Peoples R China; [Yi, Zhenzhen; Gong, Jun] S China Normal Univ, Coll Life Sci, Lab Protozool, Guangzhou 510631, Guangdong, Peoples R China; [Fan, Xinpeng] E China Normal Univ, Sch Life Sci, Shanghai 200062, Peoples R China; [Warren, Alan] Nat Hist Museum, Dept Life Sci, London SW7 5BD, England
AbstractThe Nassophorea and Prostomatea are two of the key classes in understanding the morphological diversification and higher classification of the phylum Ciliophora. However, their phylogenetic relationships with other ciliate groups within the subphylum Intramacronucleata remain elusive. In this study, we investigated the small and large subunit (SSU and LSU) rRNA gene-based phylogeny of these groups with sequences of additional taxa including several key species. The results show that: (1) the class Nassophorea remains polyphyletic, with the microthoracids clustering with the Phyllopharyngea, whereas the nassulids represent a basal group of the CONthreeP superclade in the SSU tree; (2) the Prostomatea is not depicted as a monophyletic group in phylogenetic trees, and the monophyly of this class is marginally rejected by statistical tree topology tests; (3) the nassulid genus Parafurgasonia is more closely related to the family Colpodidiidae than to Furgasonia; (4) Paranassula, which was previously thought to be a nassulid, is phylogenetically related to the oligohymenophorean peniculids in both the SSU and LSU trees; (5) the microthoracid genus Discotricha does not group with the other microthoracids in either SSU or LSU trees; (6) the family Plagiocampidae is closely related to the prostome parasite Cryptocaryon irritans and to the family Urotrichidae in the order Prorodontida; and (7) the family Placidae, represented by Placus salinus, is sister to the family Holophryidae in the order Prorodontida. Based on the present data, we consider the genus Discotricha to be an unclassified taxon within the CONthreeP. We also propose resurrecting the order Paranassulida and classifying it within the subclass Peniculia, class Oligohymenophorea. Primary and secondary structure signatures for higher taxa within Phyllopharyngea and Nassophorea are supplied. (C) 2013 Elsevier Inc. All rights reserved.; The Nassophorea and Prostomatea are two of the key classes in understanding the morphological diversification and higher classification of the phylum Ciliophora. However, their phylogenetic relationships with other ciliate groups within the subphylum Intramacronucleata remain elusive. In this study, we investigated the small and large subunit (SSU and LSU) rRNA gene-based phylogeny of these groups with sequences of additional taxa including several key species. The results show that: (1) the class Nassophorea remains polyphyletic, with the microthoracids clustering with the Phyllopharyngea, whereas the nassulids represent a basal group of the CONthreeP superclade in the SSU tree; (2) the Prostomatea is not depicted as a monophyletic group in phylogenetic trees, and the monophyly of this class is marginally rejected by statistical tree topology tests; (3) the nassulid genus Parafurgasonia is more closely related to the family Colpodidiidae than to Furgasonia; (4) Paranassula, which was previously thought to be a nassulid, is phylogenetically related to the oligohymenophorean peniculids in both the SSU and LSU trees; (5) the microthoracid genus Discotricha does not group with the other microthoracids in either SSU or LSU trees; (6) the family Plagiocampidae is closely related to the prostome parasite Cryptocaryon irritans and to the family Urotrichidae in the order Prorodontida; and (7) the family Placidae, represented by Placus salinus, is sister to the family Holophryidae in the order Prorodontida. Based on the present data, we consider the genus Discotricha to be an unclassified taxon within the CONthreeP. We also propose resurrecting the order Paranassulida and classifying it within the subclass Peniculia, class Oligohymenophorea. Primary and secondary structure signatures for higher taxa within Phyllopharyngea and Nassophorea are supplied. (C) 2013 Elsevier Inc. All rights reserved.
SubtypeArticle
Funding OrganizationNatural Science Foundation of China [31301867, 31172041, 31030059, 41176143]; Natural Science Foundation for Distinguished Young Scholars of Shandong [JQ201210]; CAS Hundred Talent Program; Yantai Double Hundred Talent Plan
Indexed BySCI
Language英语
WOS KeywordRIBOSOMAL-RNA GENE ; SMALL-SUBUNIT ; PHYLUM-CILIOPHORA ; MOLECULAR PHYLOGENY ; TAXONOMIC REVISION ; TREE SELECTION ; MORPHOLOGY ; SYNHYMENIIDA ; SEQUENCE ; ULTRASTRUCTURE
WOS Research AreaBiochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
WOS IDWOS:000328441100018
Citation statistics
Cited Times:44[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/7030
Collection海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
Corresponding AuthorGong, J (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China. jgong@yic.ac.cn; wsong@ouc.edu.cn
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Ocean Univ China, Inst Evolut & Marine Biodivers, Qingdao 266003, Peoples R China
3.S China Normal Univ, Coll Life Sci, Lab Protozool, Guangzhou 510631, Guangdong, Peoples R China
4.E China Normal Univ, Sch Life Sci, Shanghai 200062, Peoples R China
5.Nat Hist Museum, Dept Life Sci, London SW7 5BD, England
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Zhang, Qianqian,Yi, Zhenzhen,Fan, Xinpeng,et al. Further insights into the phylogeny of two ciliate classes Nassophorea and Prostomatea (Protista, Ciliophora)[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2014,70:162-170.
APA Zhang, Qianqian.,Yi, Zhenzhen.,Fan, Xinpeng.,Warren, Alan.,Gong, Jun.,...&wsong@ouc.edu.cn.(2014).Further insights into the phylogeny of two ciliate classes Nassophorea and Prostomatea (Protista, Ciliophora).MOLECULAR PHYLOGENETICS AND EVOLUTION,70,162-170.
MLA Zhang, Qianqian,et al."Further insights into the phylogeny of two ciliate classes Nassophorea and Prostomatea (Protista, Ciliophora)".MOLECULAR PHYLOGENETICS AND EVOLUTION 70(2014):162-170.
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