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题名: Phylogenomics solves a long-standing evolutionary puzzle in the ciliate world: The subclass Peritrichia is monophyletic
作者: Gentekaki, Eleni1; Kolisko, Martin2; Gong, Yingchun3; Lynn, Denis4, 5
关键词: Ciliophora ; Peritrichia ; Sessilida ; Mobilida ; Phylogenomics
刊名: MOLECULAR PHYLOGENETICS AND EVOLUTION
发表日期: 2017
DOI: 10.1016/j.ympev.2016.09.016
卷: 106, 页:1-5
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
研究领域[WOS]: Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
英文摘要: The phylum Ciliophora is one of the most broadly studied protozoan lineages. The era of molecular investigation has brought forth a major ongoing debate: is the subclass Peritrichia Stein, 1859 monophyletic? Numerous analyses mostly using the small subunit (SSU) rRNA gene have failed to recover the Mobilida and Sessilida, the two peritrich orders, as sister clades. Here we have sequenced five peritrich species - three sessilids and two mobilids. We constructed a supermatrix of 158 genes and 44,696 characters for 24 ciliate species, and as outgroup taxa, nine species from the Apicomplexa and four from the Dinophyceae. Our analyses using both maximum likelihood and Bayesian methods recover a monophyletic class Oligohymenophorea and two robust clades within it. The first Glade is a monophyletic Peritrichia with the orders Sessilida and Mobilida maximally supported as sister clades. The second oligohymenophorean Glade includes species of the subclasses Scuticociliatia and Hymenostomatia, which are sister clades. Our analyses resolve a long-standing debate in ciliate molecular phylogenetics and provide support for the classical view that the morphological features of the two peritrich orders Mobilida and Sessilida arose by descent from the same common ancestor and are not the result of convergence. (C) 2016 Elsevier Inc. All rights reserved.
关键词[WOS]: RNA GENE-SEQUENCES ; TRICHODINA-PEDICULUS CILIOPHORA ; PHYLOGENETIC-RELATIONSHIPS ; MURMANICA CILIOPHORA ; MOLECULAR PHYLOGENY ; SPECIES TREES ; OLIGOHYMENOPHOREA ; RECONSIDERATION ; RECONSTRUCTION ; EPICARCHESIUM
语种: 英语
项目资助者: Natural Sciences and Engineering Research Council of Canada Discovery grant(6544-13) ; National Natural Science Foundation of China(30900130) ; Chinese Academy of Sciences
WOS记录号: WOS:000388059500001
ISSN号: 1055-7903
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/28681
Appears in Collections:藻类生物技术和生物能源研发中心_期刊论文

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作者单位: 1.Mae Fah Luang Univ, Sch Sci, Chiang Rai 57100, Thailand
2.Univ British Columbia, Dept Bot, Vancouver, BC V6T 1Z4, Canada
3.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China
4.Univ Guelph, Dept Integrat Biol, Guelph, ON N1G 2W1, Canada
5.Univ British Columbia, Dept Zool, Vancouver, BC V6T 1Z4, Canada
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